hatch limitation

33 files changed, 110 insertions, 376 deletions

diff --git a/src/Java/gtPlusPlus/xmod/gregtech/api/metatileentity/implementations/base/GregtechMeta_MultiBlockBase.java b/src/Java/gtPlusPlus/xmod/gregtech/api/metatileentity/implementations/base/GregtechMeta_MultiBlockBase.java
index 6956d788d5..3878583b60 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/api/metatileentity/implementations/base/GregtechMeta_MultiBlockBase.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/api/metatileentity/implementations/base/GregtechMeta_MultiBlockBase.java
@@ -1650,6 +1650,9 @@ public abstract class GregtechMeta_MultiBlockBase<T extends GT_MetaTileEntity_En
 		this.mScrewdriver = true;		
 	}
 
+	public boolean checkHatch() {
+		return mMaintenanceHatches.size() <= 1 && !mMufflerHatches.isEmpty();
+	}
 
 	public <E> boolean addToMachineListInternal(ArrayList<E> aList, final IMetaTileEntity aTileEntity,
 			final int aBaseCasingIndex) {		
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/blocks/textures/TexturesGrinderMultiblock.java b/src/Java/gtPlusPlus/xmod/gregtech/common/blocks/textures/TexturesGrinderMultiblock.java
index 02900c300b..962f981d3b 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/blocks/textures/TexturesGrinderMultiblock.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/blocks/textures/TexturesGrinderMultiblock.java
@@ -74,315 +74,60 @@ public class TexturesGrinderMultiblock {
 			frontFaceActive_8
 	};
 
-	public IIcon handleCasingsGT(final IBlockAccess aWorld, final int xCoord, final int yCoord, final int zCoord, final int aSide, final GregtechMetaCasingBlocks5 i) {
+	private static int isIsaControllerWithSide(IBlockAccess aWorld, int aX, int aY, int aZ, int aSide) {
+		TileEntity tTileEntity = aWorld.getTileEntity(aX, aY, aZ);
+		if (!(tTileEntity instanceof IGregTechTileEntity)) return 0;
+		IGregTechTileEntity tTile = (IGregTechTileEntity) tTileEntity;
+		if (tTile.getMetaTileEntity() instanceof GregtechMetaTileEntity_IsaMill && tTile.getFrontFacing() == aSide)
+			return tTile.isActive() ? 1 : 2;
+		return 0;
+	}
+
+	public IIcon handleCasingsGT(final IBlockAccess aWorld, final int xCoord, final int yCoord, final int zCoord, final int aSide, final GregtechMetaCasingBlocks5 ii) {
 		final int tMeta = aWorld.getBlockMetadata(xCoord, yCoord, zCoord);
 		if (tMeta != 0) {
 			return GregtechMetaCasingBlocks5.getStaticIcon(aSide, tMeta);
 		}
-		final int tStartIndex = tMeta == 6 ? 1 : 13;
-		if (tMeta == 0) {
-			if ((aSide == 2) || (aSide == 3)) {
-				TileEntity tTileEntity;
-				IMetaTileEntity tMetaTileEntity;
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord + (aSide == 3 ? 1 : -1), yCoord - 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 0);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord + (aSide == 3 ? 1 : -1), yCoord, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 3);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord + (aSide == 3 ? 1 : -1), yCoord + 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 6);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord - 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 1);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord + 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 7);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord + (aSide == 2 ? 1 : -1), yCoord + 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 8);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord + (aSide == 2 ? 1 : -1), yCoord, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 5);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord + (aSide == 2 ? 1 : -1), yCoord - 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex(tMetaTileEntity, 2);
-				}
-			} else if ((aSide == 4) || (aSide == 5)) {
-				TileEntity tTileEntity;
-				Object tMetaTileEntity;
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord - 1, zCoord + (aSide == 4 ? 1 : -1)))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 0);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord, zCoord + (aSide == 4 ? 1 : -1)))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 3);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord + 1, zCoord + (aSide == 4 ? 1 : -1)))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 6);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord - 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 1);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord + 1, zCoord))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 7);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord + 1, zCoord + (aSide == 5 ? 1 : -1)))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 8);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord, zCoord + (aSide == 5 ? 1 : -1)))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 5);
-				}
-				if ((null != (tTileEntity = aWorld.getTileEntity(xCoord, yCoord - 1, zCoord + (aSide == 5 ? 1 : -1)))) && ((tTileEntity instanceof IGregTechTileEntity)) && (((IGregTechTileEntity) tTileEntity).getFrontFacing() == aSide) && (null != (tMetaTileEntity = ((IGregTechTileEntity) tTileEntity).getMetaTileEntity())) && ((tMetaTileEntity instanceof GregtechMetaTileEntity_IsaMill))) {
-					return getIconByIndex((IMetaTileEntity) tMetaTileEntity, 2);
-				}
-			}
-			return TexturesGtBlock.TEXTURE_CASING_GRINDING_MILL.getIcon();
-		}
-		final boolean[] tConnectedSides = {(aWorld.getBlock(xCoord, yCoord - 1, zCoord) == i) && (aWorld.getBlockMetadata(xCoord, yCoord - 1, zCoord) == tMeta), (aWorld.getBlock(xCoord, yCoord + 1, zCoord) == i) && (aWorld.getBlockMetadata(xCoord, yCoord + 1, zCoord) == tMeta), (aWorld.getBlock(xCoord + 1, yCoord, zCoord) == i) && (aWorld.getBlockMetadata(xCoord + 1, yCoord, zCoord) == tMeta), (aWorld.getBlock(xCoord, yCoord, zCoord + 1) == i) && (aWorld.getBlockMetadata(xCoord, yCoord, zCoord + 1) == tMeta), (aWorld.getBlock(xCoord - 1, yCoord, zCoord) == i) && (aWorld.getBlockMetadata(xCoord - 1, yCoord, zCoord) == tMeta), (aWorld.getBlock(xCoord, yCoord, zCoord - 1) == i) && (aWorld.getBlockMetadata(xCoord, yCoord, zCoord - 1) == tMeta)};
-		switch (aSide) {
-		case 0:
-			if (tConnectedSides[0]) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 6)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 2)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (!tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 3)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (!tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 4)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 5)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (!tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 8)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (!tConnectedSides[5]) && (!tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 9)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (!tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 10)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 11)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (!tConnectedSides[5]) && (!tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (!tConnectedSides[2])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 1)].getIcon();
-			}
-			if ((!tConnectedSides[5]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 0)].getIcon();
-			}
-		case 1:
-			if (tConnectedSides[1]) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 6)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 2)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (!tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 3)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (!tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 4)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 5)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (!tConnectedSides[5]) && (tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 8)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (!tConnectedSides[5]) && (!tConnectedSides[2]) && (tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 9)].getIcon();
-			}
-			if ((tConnectedSides[4]) && (tConnectedSides[5]) && (!tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 10)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (tConnectedSides[5]) && (tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 11)].getIcon();
-			}
-			if ((!tConnectedSides[4]) && (!tConnectedSides[5]) && (!tConnectedSides[2]) && (!tConnectedSides[3])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[4])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 1)].getIcon();
-			}
-			if ((!tConnectedSides[3]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 0)].getIcon();
-			}
-		case 2:
-			if (tConnectedSides[5]) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 6)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 2)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (!tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 5)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (!tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 4)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 3)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 11)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (!tConnectedSides[0]) && (!tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 10)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (!tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 9)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 8)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[0]) && (!tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[4])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 1)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 0)].getIcon();
-			}
-		case 3:
-			if (tConnectedSides[3]) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 6)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 4)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (!tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 5)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (!tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 2)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 3)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[0]) && (tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 10)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (!tConnectedSides[0]) && (!tConnectedSides[4]) && (tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 11)].getIcon();
-			}
-			if ((tConnectedSides[2]) && (tConnectedSides[0]) && (!tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 8)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (tConnectedSides[0]) && (tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 9)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[0]) && (!tConnectedSides[4]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((!tConnectedSides[2]) && (!tConnectedSides[4])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 1)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 0)].getIcon();
-			}
-		case 4:
-			if (tConnectedSides[4]) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 6)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 5)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (!tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 4)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (!tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 3)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 2)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 10)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (!tConnectedSides[3]) && (!tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 9)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (!tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 8)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 11)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[3]) && (!tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 0)].getIcon();
-			}
-			if ((!tConnectedSides[3]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 1)].getIcon();
-			}
-		case 5:
-			if (tConnectedSides[2]) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 6)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 5)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (!tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 2)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (!tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 3)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 4)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[3]) && (tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 11)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (!tConnectedSides[3]) && (!tConnectedSides[1]) && (tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 8)].getIcon();
-			}
-			if ((tConnectedSides[0]) && (tConnectedSides[3]) && (!tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 9)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (tConnectedSides[3]) && (tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 10)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[3]) && (!tConnectedSides[1]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
-			}
-			if ((!tConnectedSides[0]) && (!tConnectedSides[1])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 0)].getIcon();
-			}
-			if ((!tConnectedSides[3]) && (!tConnectedSides[5])) {
-				return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 1)].getIcon();
-			}
-			break;
+		int tInvertLeftRightMod = aSide % 2 * 2 - 1;
+		switch (aSide / 2) {
+			case 0:
+				for (int i = -1; i < 2; i++) {
+					for (int j = -1; j < 2; j++) {
+						if (i == 0 && j == 0)
+							continue;
+						if (isIsaControllerWithSide(aWorld, xCoord + j, yCoord, zCoord + i, aSide) != 0) {
+							IMetaTileEntity tMetaTileEntity = ((IGregTechTileEntity) aWorld.getTileEntity(xCoord + j, yCoord, zCoord + i)).getMetaTileEntity();
+							return getIconByIndex(tMetaTileEntity, 4 - i * 3 - j);
+						}
+					}
+				}
+				break;
+			case 1:
+				for (int i = -1; i < 2; i++) {
+					for (int j = -1; j < 2; j++) {
+						if (i == 0 && j == 0)
+							continue;
+						if (isIsaControllerWithSide(aWorld, xCoord + j, yCoord + i, zCoord, aSide) != 0) {
+							IMetaTileEntity tMetaTileEntity = ((IGregTechTileEntity) aWorld.getTileEntity(xCoord + j, yCoord + i, zCoord)).getMetaTileEntity();
+							return getIconByIndex(tMetaTileEntity, 4 + i * 3 - j * tInvertLeftRightMod);
+						}
+					}
+				}
+				break;
+			case 2:
+				for (int i = -1; i < 2; i++) {
+					for (int j = -1; j < 2; j++) {
+						if (i == 0 && j == 0)
+							continue;
+						if (isIsaControllerWithSide(aWorld, xCoord, yCoord + i, zCoord + j, aSide) != 0) {
+							IMetaTileEntity tMetaTileEntity = ((IGregTechTileEntity) aWorld.getTileEntity(xCoord, yCoord + i, zCoord + j)).getMetaTileEntity();
+							return getIconByIndex(tMetaTileEntity, 4 + i * 3 + j * tInvertLeftRightMod);
+						}
+					}
+				}
+				break;
 		}
-		return Textures.BlockIcons.CONNECTED_HULLS[(tStartIndex + 7)].getIcon();
+		return TexturesGtBlock.TEXTURE_CASING_GRINDING_MILL.getIcon();
 	}
 	
 	public boolean isCentrifugeRunning(IMetaTileEntity aTile) {
@@ -392,12 +137,6 @@ public class TexturesGrinderMultiblock {
 		else {
 			return aTile.getBaseMetaTileEntity().isActive();
 		}
-		
-		
-	}
-	
-	public boolean isUsingAnimatedTexture(IMetaTileEntity aMetaTileEntity) {
-		return true;
 	}
 
 	public IIcon getIconByIndex(IMetaTileEntity aMetaTileEntity, int aIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/misc/GMTE_AmazonPackager.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/misc/GMTE_AmazonPackager.java
index 7993c456a2..ba3903fd88 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/misc/GMTE_AmazonPackager.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/misc/GMTE_AmazonPackager.java
@@ -297,7 +297,7 @@ public class GMTE_AmazonPackager extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && checkHatch();
 	}
 
 	@Override
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialAlloySmelter.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialAlloySmelter.java
index e4b6b277e1..7d3b18860a 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialAlloySmelter.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialAlloySmelter.java
@@ -138,7 +138,7 @@ public class GregtechMetaTileEntity_IndustrialAlloySmelter extends GregtechMeta_
 							{"HHH", "H-H", "HHH"},
 							{"VVV", "V-V", "VVV"},
 							{"HHH", "H-H", "HHH"},
-							{"CCC", "C~C", "CCC"},
+							{"C~C", "CCC", "CCC"},
 					}))
 					.addElement(
 							'C',
@@ -206,7 +206,7 @@ public class GregtechMetaTileEntity_IndustrialAlloySmelter extends GregtechMeta_
 		mCasing = 0;
 		mLevel = 0;
 		setCoilLevel(HeatingCoilLevel.None);
-		return checkPiece(mName, 1, 4, 0) && mCasing >= 10 && getCoilLevel() != HeatingCoilLevel.None && (mLevel = getCoilLevel().getTier() + 1) > 0;
+		return checkPiece(mName, 1, 4, 0) && mCasing >= 10 && getCoilLevel() != HeatingCoilLevel.None && (mLevel = getCoilLevel().getTier() + 1) > 0 && checkHatch();
 	}
 
 	@Override
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialArcFurnace.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialArcFurnace.java
index bfb210f5a2..ce0bc04527 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialArcFurnace.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialArcFurnace.java
@@ -93,21 +93,21 @@ extends GregtechMeta_MultiBlockBase {
 	public IStructureDefinition<GregtechMetaTileEntity_IndustrialArcFurnace> getStructureDefinition() {
 		if (STRUCTURE_DEFINITION == null) {
 			STRUCTURE_DEFINITION = StructureDefinition.<GregtechMetaTileEntity_IndustrialArcFurnace>builder()
-					.addShape(mName + "3", transpose(new String[][]{
+					.addShape(mName + "3", new String[][]{
 							{"CCC", "C~C", "CCC"},
 							{"CCC", "C-C", "CCC"},
 							{"CCC", "CCC", "CCC"},
-					}))
-					.addShape(mName + "5", transpose(new String[][]{
+					})
+					.addShape(mName + "5", new String[][]{
 							{"CCCCC", "CCCCC", "CC~CC", "CCCCC", "CCCCC"},
 							{"CCCCC", "C---C", "C---C", "C---C", "CCCCC"},
 							{"CCCCC", "CCCCC", "CCCCC", "CCCCC", "CCCCC"},
-					}))
-					.addShape(mName + "7", transpose(new String[][]{
+					})
+					.addShape(mName + "7", new String[][]{
 							{"CCCCCCC", "CCCCCCC", "CCCCCCC", "CCC~CCC", "CCCCCCC", "CCCCCCC", "CCCCCCC"},
 							{"CCCCCCC", "C-----C", "C-----C", "C-----C", "C-----C", "C-----C", "CCCCCCC"},
 							{"CCCCCCC", "CCCCCCC", "CCCCCCC", "CCCCCCC", "CCCCCCC", "CCCCCCC", "CCCCCCC"},
-					}))
+					})
 					.addElement(
 							'C',
 							ofChain(
@@ -176,28 +176,28 @@ extends GregtechMeta_MultiBlockBase {
 			case 2: size = 5; break;
 			default: size = 7; break;
 		}
-		buildPiece(mName + size, stackSize, hintsOnly, (size - 1) / 2, 0, (size - 1) / 2);
+		buildPiece(mName + size, stackSize, hintsOnly, (size - 1) / 2, (size - 1) / 2, 0);
 	}
 
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
 		mSize = 0;
-		if (checkPiece(mName + "3", 1, 0, 1)) {
+		if (checkPiece(mName + "3", 1, 1, 0)) {
 			mSize = 3;
-			return mCasing >= 10;
+			return mCasing >= 10 && checkHatch();
 		}
 		mCasing = 0;
 		clearHatches();
-		if (checkPiece(mName + "5", 2, 0, 2)) {
+		if (checkPiece(mName + "5", 2, 2, 0)) {
 			mSize = 5;
-			return mCasing >= 10;
+			return mCasing >= 10 && checkHatch();
 		}
 		mCasing = 0;
 		clearHatches();
-		if (checkPiece(mName + "7", 3, 0, 3)) {
+		if (checkPiece(mName + "7", 3, 3, 0)) {
 			mSize = 3;
-			return mCasing >= 10;
+			return mCasing >= 10 && checkHatch();
 		}
 		return false;
 	}
@@ -209,7 +209,7 @@ extends GregtechMeta_MultiBlockBase {
 
 	@Override
 	public ITexture[] getTexture(final IGregTechTileEntity aBaseMetaTileEntity, final byte aSide, final byte aFacing, final byte aColorIndex, final boolean aActive, final boolean aRedstone) {
-		if (aSide == 0 || aSide == 1) {
+		if (aSide == aFacing) {
 			return new ITexture[]{Textures.BlockIcons.getCasingTextureForId(mCasingTextureID),
 					new GT_RenderedTexture(aActive ? TexturesGtBlock.Overlay_Machine_Controller_Default_Active : TexturesGtBlock.Overlay_Machine_Controller_Default)};
 		}
@@ -289,17 +289,6 @@ extends GregtechMeta_MultiBlockBase {
 		return 15;
 	}
 
-	public boolean isValidCasingBlock(Block aBlock, int aMeta) {
-		if (aBlock == getCasingBlock() && aMeta == getCasingMeta()) {
-			return true;
-		}
-		if (aBlock == getCasingBlock2() && aMeta == getCasingMeta2()) {
-			return true;
-		}
-		Logger.INFO("Found "+(aBlock != null ? aBlock.getLocalizedName() : "Air") + "With Meta "+aMeta);
-		return false;
-	}
-
 	public byte getCasingTextureIndex() {
 		return (byte) mCasingTextureID;
 	}
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCentrifuge.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCentrifuge.java
index 9ed424386b..3e4e0c128d 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCentrifuge.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCentrifuge.java
@@ -128,7 +128,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 - 8;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 - 8 && checkHatch();
 	}
 
 	public final boolean addIndustrialCentrifugeList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCokeOven.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCokeOven.java
index 864165ad12..abbe06db31 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCokeOven.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCokeOven.java
@@ -134,7 +134,7 @@ extends GregtechMeta_MultiBlockBase {
 		if (checkPiece(mName, 1, 2, 0)) {
 			if (mCasing1 == 8) mLevel = 1;
 			if (mCasing2 == 8) mLevel = 2;
-			return mLevel > 0 && mCasing >= 8;
+			return mLevel > 0 && mCasing >= 8 && checkHatch();
 		}
 		return false;
 	}
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCuttingMachine.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCuttingMachine.java
index 0162fad791..80cf2ef77b 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCuttingMachine.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialCuttingMachine.java
@@ -110,7 +110,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 26;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 26 && checkHatch();
 	}
 
 	public final boolean addIndustrialCuttingMachineList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialDehydrator.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialDehydrator.java
index 9cd7fca708..39d5818a5a 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialDehydrator.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialDehydrator.java
@@ -140,7 +140,7 @@ public class GregtechMetaTileEntity_IndustrialDehydrator extends GregtechMeta_Mu
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
 		setCoilLevel(HeatingCoilLevel.None);
-		return checkPiece(mName, 1, 4, 0) && mCasing >= 10 && getCoilLevel() != HeatingCoilLevel.None;
+		return checkPiece(mName, 1, 4, 0) && mCasing >= 10 && getCoilLevel() != HeatingCoilLevel.None && checkHatch();
 	}
 
 	public final boolean addIndustrialDehydratorList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialElectrolyzer.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialElectrolyzer.java
index d1a04b82c1..af62225ffc 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialElectrolyzer.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialElectrolyzer.java
@@ -105,7 +105,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && checkHatch();
 	}
 
 	public final boolean addIndustrialElectrolyzerList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialExtruder.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialExtruder.java
index c9d887f6d1..ba8181abd1 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialExtruder.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialExtruder.java
@@ -69,8 +69,8 @@ extends GregtechMeta_MultiBlockBase {
 				.addInputBus("Any Casing", 1)
 				.addOutputBus("Any Casing", 1)
 				.addEnergyHatch("Any Casing", 1)
-				.addMufflerHatch("Any Casing", 1)
-				.addMaintenanceHatch("Back Center", 2)
+				.addMaintenanceHatch("Any Casing", 1)
+				.addMufflerHatch("Back Center", 2)
 				.toolTipFinisher("GT++");
 		return tt;
 	}
@@ -117,7 +117,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 28;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 28 && checkHatch();
 	}
 
 	public final boolean addIndustrialExtruderList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMacerator.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMacerator.java
index 659c014fb7..5c5ec5cf15 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMacerator.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMacerator.java
@@ -136,7 +136,7 @@ extends GregtechMeta_MultiBlockBase {
 						mPerLayer + 1 != mOutputBusses.size()) return false;
 				mPerLayer ++;
 			}
-			return checkPiece(mName + "top", 1, 5, 0) && mOutputBusses.size() == 5 && mCasing >= 26;
+			return checkPiece(mName + "top", 1, 5, 0) && mOutputBusses.size() == 5 && mCasing >= 26 && checkHatch();
 		}
 		return false;
 	}
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMixer.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMixer.java
index 671dc96a0c..71fe2be50c 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMixer.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMixer.java
@@ -135,7 +135,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 2, 0) && mCasing >= 16;
+		return checkPiece(mName, 1, 2, 0) && mCasing >= 16 && checkHatch();
 	}
 
 	public final boolean addIndustrialMixerList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMultiMachine.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMultiMachine.java
index 2ea6215116..a06d3880a7 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMultiMachine.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialMultiMachine.java
@@ -148,7 +148,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 6;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 6 && checkHatch();
 	}
 
 	public final boolean addIndustrialMultiMachineList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialPlatePress.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialPlatePress.java
index e20975ea4f..ce737c5fcb 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialPlatePress.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialPlatePress.java
@@ -111,7 +111,7 @@ public class GregtechMetaTileEntity_IndustrialPlatePress extends GregtechMeta_Mu
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && checkHatch();
 	}
 
 	public final boolean addIndustrialPlatePressList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialSifter.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialSifter.java
index c34d48d0ab..c0cfe1a92c 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialSifter.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialSifter.java
@@ -112,7 +112,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 2, 2, 0) && mCasing >= 35 && mOutputBusses.size() >= 4;
+		return checkPiece(mName, 2, 2, 0) && mCasing >= 35 && mOutputBusses.size() >= 4 && checkHatch();
 	}
 
 	public final boolean addIndustrialSifterList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialThermalCentrifuge.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialThermalCentrifuge.java
index e567c61bec..41002d5528 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialThermalCentrifuge.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialThermalCentrifuge.java
@@ -127,7 +127,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 0, 0) && mCasing >= 8;
+		return checkPiece(mName, 1, 0, 0) && mCasing >= 8 && checkHatch();
 	}
 
 	public final boolean addIndustrialThermalCentrifugeList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialVacuumFreezer.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialVacuumFreezer.java
index 66d254b291..56e1b65a85 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialVacuumFreezer.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialVacuumFreezer.java
@@ -139,7 +139,7 @@ public class GregtechMetaTileEntity_IndustrialVacuumFreezer extends GregtechMeta
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
 		mHaveHatch = false;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && mHaveHatch;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && mHaveHatch && checkHatch();
 	}
 
 	public final boolean addIndustrialVacuumFreezerList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWashPlant.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWashPlant.java
index 7ba655a552..6b425fd534 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWashPlant.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWashPlant.java
@@ -119,7 +119,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 2, 1, 0) && mCasing >= 40;
+		return checkPiece(mName, 2, 1, 0) && mCasing >= 40 && checkHatch();
 	}
 
 	public final boolean addIndustrialWashPlantList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWireMill.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWireMill.java
index 071648ac60..154cfb0f01 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWireMill.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IndustrialWireMill.java
@@ -105,7 +105,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 32;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 32 && checkHatch();
 	}
 
 	public final boolean addIndustrialWireMillList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IsaMill.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IsaMill.java
index 2315547eb0..967c82ff74 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IsaMill.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/GregtechMetaTileEntity_IsaMill.java
@@ -140,7 +140,7 @@ public class GregtechMetaTileEntity_IsaMill extends GregtechMeta_MultiBlockBase
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
 		mMillingBallBuses.clear();
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 48 - 8;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 48 - 8 && checkHatch();
 	}
 
 	public final boolean addIsaMillList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_DistillationTower.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_DistillationTower.java
index bcac924bcf..5b6c5b60fa 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_DistillationTower.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_DistillationTower.java
@@ -62,7 +62,7 @@ public class GregtechMetaTileEntity_Adv_DistillationTower extends GregtechMeta_M
 					.addShape(mName + "mid", transpose(new String[][]{
 							{"CCC", "C-C", "CCC"}
 					}))
-					.addShape(mName + "bottom", transpose(new String[][]{
+					.addShape(mName + "top", transpose(new String[][]{
 							{"MMM", "MMM", "MMM"}
 					}))
 					.addElement(
@@ -184,13 +184,13 @@ public class GregtechMetaTileEntity_Adv_DistillationTower extends GregtechMeta_M
 		if (!checkPiece(mName + "bottom", 1, 0, 0))
 			return false;
 		int layer = 1;
-		while (!checkPiece(mName + "mid", 1, layer, 0)) {
+		while (checkPiece(mName + "mid", 1, layer, 0)) {
 			if (layer != mOutputHatches.size()) return false;
 			layer ++;
 		}
-		if (layer > 12 || !checkPiece(mName + "top", 1, layer - 1, 0))
+		if (layer > 12 || !checkPiece(mName + "top", 1, layer, 0))
 			return false;
-		return layer == mOutputHatches.size() && mMufflerHatches.size() == 1;
+		return layer == mOutputHatches.size() && checkHatch();
 	}
 
 	public Object getClientGUI(int aID, InventoryPlayer aPlayerInventory, IGregTechTileEntity aBaseMetaTileEntity) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_EBF.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_EBF.java
index 75cfebaac3..cb00c133fb 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_EBF.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_EBF.java
@@ -154,7 +154,7 @@ public class GregtechMetaTileEntity_Adv_EBF extends GregtechMeta_MultiBlockBase
 		mCasing = 0;
 		mHaveHatch = false;
 		setCoilLevel(HeatingCoilLevel.None);
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 9 && mHaveHatch && getCoilLevel() != HeatingCoilLevel.None;
+		return checkPiece(mName, 1, 3, 0) && mCasing >= 9 && mHaveHatch && getCoilLevel() != HeatingCoilLevel.None && checkHatch();
 	}
 
 	public final boolean addAdvEBFList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_Implosion.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_Implosion.java
index 1d89c13d43..e8d9cf2271 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_Implosion.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/processing/advanced/GregtechMetaTileEntity_Adv_Implosion.java
@@ -133,7 +133,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && checkHatch();
 	}
 
 	public ITexture[] getTexture(IGregTechTileEntity aBaseMetaTileEntity, byte aSide, byte aFacing, byte aColorIndex, boolean aActive, boolean aRedstone) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_AutoCrafter.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_AutoCrafter.java
index 5f976ed14b..5e42f449a4 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_AutoCrafter.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_AutoCrafter.java
@@ -195,7 +195,7 @@ public class GT4Entity_AutoCrafter extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		if (checkPiece(mName, 1, 1, 0) && mCasing >= 10) {
+		if (checkPiece(mName, 1, 1, 0) && mCasing >= 10 && checkHatch()) {
 			setTier();
 			return true;
 		} else return false;
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_ThermalBoiler.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_ThermalBoiler.java
index b3639c7eb3..93df62a2be 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_ThermalBoiler.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GT4Entity_ThermalBoiler.java
@@ -270,7 +270,7 @@ extends GregtechMeta_MultiBlockBase
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 10;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 10 && checkHatch();
 	}
 
 	public final boolean addThermalBoilerList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
@@ -329,7 +329,7 @@ extends GregtechMeta_MultiBlockBase
 				if (this.mInputBusses.size() > 0) {
 					for (GT_MetaTileEntity_Hatch_InputBus aBus : this.mInputBusses) {
 						for (ItemStack aStack : aBus.mInventory) {
-							if (aStack.getItem() instanceof ItemLavaFilter) {
+							if (aStack != null && aStack.getItem() instanceof ItemLavaFilter) {
 								this.setGUIItemStack(aStack);								
 							}
 						}						
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMTE_FrothFlotationCell.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMTE_FrothFlotationCell.java
index 0e79e036d0..4d190ea884 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMTE_FrothFlotationCell.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMTE_FrothFlotationCell.java
@@ -113,7 +113,7 @@ public class GregtechMTE_FrothFlotationCell extends GregtechMeta_MultiBlockBase
 	public IStructureDefinition<GregtechMTE_FrothFlotationCell> getStructureDefinition() {
 		if (STRUCTURE_DEFINITION == null) {
 			STRUCTURE_DEFINITION = StructureDefinition.<GregtechMTE_FrothFlotationCell>builder()
-					.addShape(mName, transpose(new String[][]{
+					.addShape(mName, new String[][]{
 							{"       ", "       ", "   X   ", "  X~X  ", "   X   ", "       ", "       "},
 							{"       ", "   F   ", "  FFF  ", " FF FF ", "  FFF  ", "   F   ", "       "},
 							{"       ", "   F   ", "  F F  ", " F   F ", "  F F  ", "   F   ", "       "},
@@ -123,7 +123,7 @@ public class GregtechMTE_FrothFlotationCell extends GregtechMeta_MultiBlockBase
 							{"       ", "   F   ", "  F F  ", " F   F ", "  F F  ", "   F   ", "       "},
 							{"  CCC  ", " CCCCC ", "CCCCCCC", "CCCCCCC", "CCCCCCC", " CCCCC ", "  CCC  "},
 							{"  CCC  ", " CCCCC ", "CCCCCCC", "CCCCCCC", "CCCCCCC", " CCCCC ", "  CCC  "},
-					}))
+					})
 					.addElement(
 							'C',
 							ofChain(
@@ -157,13 +157,13 @@ public class GregtechMTE_FrothFlotationCell extends GregtechMeta_MultiBlockBase
 
 	@Override
 	public void construct(ItemStack stackSize, boolean hintsOnly) {
-		buildPiece(mName , stackSize, hintsOnly, 3, 0, 0);
+		buildPiece(mName , stackSize, hintsOnly, 3, 3, 0);
 	}
 
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 3,  0, 0) && mCasing >= 68 - 4;
+		return checkPiece(mName, 3,  3, 0) && mCasing >= 68 - 4 && checkHatch();
 	}
 
 	public final boolean addFrothFlotationCellList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_AlloyBlastSmelter.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_AlloyBlastSmelter.java
index 2639480a1c..1443129a28 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_AlloyBlastSmelter.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_AlloyBlastSmelter.java
@@ -127,7 +127,7 @@ extends GregtechMeta_MultiBlockBase {
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 1, 3, 0) && mCasing >= 10 && mEnergyHatches.size() == 1;
+		return checkPiece(mName, 1, 3, 0) && mCasing >= 10 && mEnergyHatches.size() == 1 && checkHatch();
 	}
 
 	public final boolean addAlloyBlastSmelterList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_Cyclotron.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_Cyclotron.java
index 3ba35f7f08..41bf8fc146 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_Cyclotron.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_Cyclotron.java
@@ -192,7 +192,7 @@ public class GregtechMetaTileEntity_Cyclotron extends GregtechMeta_MultiBlockBas
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 7, 1, 12) && mCasing >= 40;
+		return checkPiece(mName, 7, 1, 12) && mCasing >= 40 && checkHatch();
 	}
 
 	public final boolean addCyclotronList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_IndustrialFishingPond.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_IndustrialFishingPond.java
index da470a37d9..12060c0bc3 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_IndustrialFishingPond.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_IndustrialFishingPond.java
@@ -159,7 +159,7 @@ public class GregtechMetaTileEntity_IndustrialFishingPond extends GregtechMeta_M
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 4, 1, 0) && mCasing >= 64;
+		return checkPiece(mName, 4, 1, 0) && mCasing >= 64 && checkHatch();
 	}
 
 	@Override
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeRocketEngine.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeRocketEngine.java
index 0184a3be55..cea1ccbcef 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeRocketEngine.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeRocketEngine.java
@@ -190,7 +190,7 @@ public class GregtechMetaTileEntity_LargeRocketEngine extends GregtechMeta_Multi
 		this.mTecTechDynamoHatches.clear();
 		this.mAllDynamoHatches.clear();
 		this.mAirIntakes.clear();
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 64 - 48 && mAirIntakes.size() >= 8;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 64 - 48 && mAirIntakes.size() >= 8 && checkHatch();
 	}
 
 	public final boolean addLargeRocketEngineTopList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
@@ -205,7 +205,10 @@ public class GregtechMetaTileEntity_LargeRocketEngine extends GregtechMeta_Multi
 				((GT_MetaTileEntity_Hatch) aMetaTileEntity).updateTexture(aBaseCasingIndex);
 				return this.mAllDynamoHatches.add((GT_MetaTileEntity_Hatch_Dynamo) aMetaTileEntity);
 			} if (LoadedMods.TecTech) {
-				if (isThisHatchMultiDynamo(aMetaTileEntity)) this.mAllDynamoHatches.add((GT_MetaTileEntity_Hatch) aMetaTileEntity);
+				if (isThisHatchMultiDynamo(aMetaTileEntity)) {
+					((GT_MetaTileEntity_Hatch)aMetaTileEntity).updateTexture(aBaseCasingIndex);
+					return this.mAllDynamoHatches.add((GT_MetaTileEntity_Hatch) aMetaTileEntity);
+				}
 			}
 		}
 		return false;
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeSemifluidGenerator.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeSemifluidGenerator.java
index 2c63321d49..20fd55ef53 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeSemifluidGenerator.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_LargeSemifluidGenerator.java
@@ -185,7 +185,7 @@ public class GregtechMetaTileEntity_LargeSemifluidGenerator extends GregtechMeta
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
 		mDynamoHatches.clear();
-		return checkPiece(mName, 1, 1, 0) && mCasing >= 16;
+		return checkPiece(mName, 1, 1, 0) && mCasing >= 16 && checkHatch();
 	}
 
 	public final boolean addLargeSemifluidGeneratorList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {
diff --git a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_MassFabricator.java b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_MassFabricator.java
index bfb86d4136..43c5a37399 100644
--- a/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_MassFabricator.java
+++ b/src/Java/gtPlusPlus/xmod/gregtech/common/tileentities/machines/multi/production/GregtechMetaTileEntity_MassFabricator.java
@@ -229,7 +229,7 @@ public class GregtechMetaTileEntity_MassFabricator extends GregtechMeta_MultiBlo
 	@Override
 	public boolean checkMachine(IGregTechTileEntity aBaseMetaTileEntity, ItemStack aStack) {
 		mCasing = 0;
-		return checkPiece(mName, 2, 3, 0) && mCasing >= 40;
+		return checkPiece(mName, 2, 3, 0) && mCasing >= 40 && checkHatch();
 	}
 
 	public final boolean addMassFabricatorList(IGregTechTileEntity aTileEntity, int aBaseCasingIndex) {