diff --git a/build.properties b/build.properties
index 29f39ddd..ecfa377c 100644
--- a/build.properties
+++ b/build.properties
@@ -1,7 +1,7 @@
 minecraft.version=1.7.10
 forge.version=10.13.4.1566-1.7.10
 
-gt.version=5.09.30pre2
+gt.version=5.09.30pre3
 
 ae2.version=rv2-beta-33
 applecore.version=1.7.10-1.2.1+107.59407
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Cable.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Cable.java
index d6d1985e..ca9d57ef 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Cable.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Cable.java
@@ -11,6 +11,7 @@ import gregtech.api.interfaces.ITexture;
 import gregtech.api.interfaces.metatileentity.IMetaTileEntity;
 import gregtech.api.interfaces.metatileentity.IMetaTileEntityCable;
 import gregtech.api.interfaces.tileentity.IColoredTileEntity;
+import gregtech.api.interfaces.tileentity.ICoverable;
 import gregtech.api.interfaces.tileentity.IEnergyConnected;
 import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
 import gregtech.api.metatileentity.BaseMetaPipeEntity;
@@ -106,8 +107,30 @@ public class GT_MetaPipeEntity_Cable extends MetaPipeEntity implements IMetaTile
 
     @Override
     public AxisAlignedBB getCollisionBoundingBoxFromPool(World aWorld, int aX, int aY, int aZ) {
-        //if (!mCanShock) return super.getCollisionBoundingBoxFromPool(aWorld, aX, aY, aZ);
-        return AxisAlignedBB.getBoundingBox(aX + 0.0625D, aY + 0.0625D, aZ + 0.0625D, aX + 0.9375D, aY + 0.9375D, aZ + 0.9375D);
+    	float tSpace = (1f - getThickNess())/2;
+    	float tSide0 = tSpace;
+    	float tSide1 = 1f - tSpace;
+    	float tSide2 = tSpace;
+    	float tSide3 = 1f - tSpace;
+    	float tSide4 = tSpace;
+    	float tSide5 = 1f - tSpace;
+    	
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 0) != 0){tSide0=tSide2=tSide4=0;tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 1) != 0){tSide2=tSide4=0;tSide1=tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 2) != 0){tSide0=tSide2=tSide4=0;tSide1=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 3) != 0){tSide0=tSide4=0;tSide1=tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 4) != 0){tSide0=tSide2=tSide4=0;tSide1=tSide3=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 5) != 0){tSide0=tSide2=0;tSide1=tSide3=tSide5=1;}
+    	
+    	byte tConn = ((BaseMetaPipeEntity) getBaseMetaTileEntity()).mConnections;
+    	if((tConn & (1 << ForgeDirection.DOWN.ordinal()) ) != 0) tSide0 = 0f;
+    	if((tConn & (1 << ForgeDirection.UP.ordinal())   ) != 0) tSide1 = 1f;
+    	if((tConn & (1 << ForgeDirection.NORTH.ordinal())) != 0) tSide2 = 0f;
+    	if((tConn & (1 << ForgeDirection.SOUTH.ordinal())) != 0) tSide3 = 1f;
+    	if((tConn & (1 << ForgeDirection.WEST.ordinal()) ) != 0) tSide4 = 0f;
+    	if((tConn & (1 << ForgeDirection.EAST.ordinal()) ) != 0) tSide5 = 1f;
+    	
+    	return AxisAlignedBB.getBoundingBox(aX + tSide4, aY + tSide0, aZ + tSide2, aX + tSide5, aY + tSide1, aZ + tSide3);
     }
 
     @Override
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Fluid.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Fluid.java
index ddba7b39..26a3ba4a 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Fluid.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Fluid.java
@@ -146,7 +146,30 @@ public class GT_MetaPipeEntity_Fluid extends MetaPipeEntity {
 
     @Override
     public AxisAlignedBB getCollisionBoundingBoxFromPool(World aWorld, int aX, int aY, int aZ) {
-        return AxisAlignedBB.getBoundingBox(aX + 0.0625D, aY + 0.0625D, aZ + 0.0625D, aX + 0.9375D, aY + 0.9375D, aZ + 0.9375D);
+    	float tSpace = (1f - getThickNess())/2;
+    	float tSide0 = tSpace;
+    	float tSide1 = 1f - tSpace;
+    	float tSide2 = tSpace;
+    	float tSide3 = 1f - tSpace;
+    	float tSide4 = tSpace;
+    	float tSide5 = 1f - tSpace;
+    	
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 0) != 0){tSide0=tSide2=tSide4=0;tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 1) != 0){tSide2=tSide4=0;tSide1=tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 2) != 0){tSide0=tSide2=tSide4=0;tSide1=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 3) != 0){tSide0=tSide4=0;tSide1=tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 4) != 0){tSide0=tSide2=tSide4=0;tSide1=tSide3=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 5) != 0){tSide0=tSide2=0;tSide1=tSide3=tSide5=1;}
+    	
+    	byte tConn = ((BaseMetaPipeEntity) getBaseMetaTileEntity()).mConnections;
+    	if((tConn & (1 << ForgeDirection.DOWN.ordinal()) ) != 0) tSide0 = 0f;
+    	if((tConn & (1 << ForgeDirection.UP.ordinal())   ) != 0) tSide1 = 1f;
+    	if((tConn & (1 << ForgeDirection.NORTH.ordinal())) != 0) tSide2 = 0f;
+    	if((tConn & (1 << ForgeDirection.SOUTH.ordinal())) != 0) tSide3 = 1f;
+    	if((tConn & (1 << ForgeDirection.WEST.ordinal()) ) != 0) tSide4 = 0f;
+    	if((tConn & (1 << ForgeDirection.EAST.ordinal()) ) != 0) tSide5 = 1f;
+    	
+    	return AxisAlignedBB.getBoundingBox(aX + tSide4, aY + tSide0, aZ + tSide2, aX + tSide5, aY + tSide1, aZ + tSide3);
     }
 
     @Override
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Item.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Item.java
index 7e2e7b78..b3d10883 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Item.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaPipeEntity_Item.java
@@ -20,6 +20,7 @@ import net.minecraft.tileentity.TileEntityDispenser;
 import net.minecraft.tileentity.TileEntityHopper;
 import net.minecraft.util.AxisAlignedBB;
 import net.minecraft.world.World;
+import net.minecraftforge.common.util.ForgeDirection;
 
 import java.util.ArrayList;
 import java.util.concurrent.ConcurrentHashMap;
@@ -319,6 +320,30 @@ public class GT_MetaPipeEntity_Item extends MetaPipeEntity implements IMetaTileE
 
     @Override
     public AxisAlignedBB getCollisionBoundingBoxFromPool(World aWorld, int aX, int aY, int aZ) {
-        return AxisAlignedBB.getBoundingBox(aX + 0.0625D, aY + 0.0625D, aZ + 0.0625D, aX + 0.9375D, aY + 0.9375D, aZ + 0.9375D);
+    	float tSpace = (1f - getThickNess())/2;
+    	float tSide0 = tSpace;
+    	float tSide1 = 1f - tSpace;
+    	float tSide2 = tSpace;
+    	float tSide3 = 1f - tSpace;
+    	float tSide4 = tSpace;
+    	float tSide5 = 1f - tSpace;
+    	
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 0) != 0){tSide0=tSide2=tSide4=0;tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 1) != 0){tSide2=tSide4=0;tSide1=tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 2) != 0){tSide0=tSide2=tSide4=0;tSide1=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 3) != 0){tSide0=tSide4=0;tSide1=tSide3=tSide5=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 4) != 0){tSide0=tSide2=tSide4=0;tSide1=tSide3=1;}
+    	if(getBaseMetaTileEntity().getCoverIDAtSide((byte) 5) != 0){tSide0=tSide2=0;tSide1=tSide3=tSide5=1;}
+    	
+    	byte tConn = ((BaseMetaPipeEntity) getBaseMetaTileEntity()).mConnections;
+    	if((tConn & (1 << ForgeDirection.DOWN.ordinal()) ) != 0) tSide0 = 0f;
+    	if((tConn & (1 << ForgeDirection.UP.ordinal())   ) != 0) tSide1 = 1f;
+    	if((tConn & (1 << ForgeDirection.NORTH.ordinal())) != 0) tSide2 = 0f;
+    	if((tConn & (1 << ForgeDirection.SOUTH.ordinal())) != 0) tSide3 = 1f;
+    	if((tConn & (1 << ForgeDirection.WEST.ordinal()) ) != 0) tSide4 = 0f;
+    	if((tConn & (1 << ForgeDirection.EAST.ordinal()) ) != 0) tSide5 = 1f;
+    	
+    	return AxisAlignedBB.getBoundingBox(aX + tSide4, aY + tSide0, aZ + tSide2, aX + tSide5, aY + tSide1, aZ + tSide3);
+    
     }
 }
\ No newline at end of file
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_BasicMachine.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_BasicMachine.java
index 29b47ab9..315c9032 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_BasicMachine.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_BasicMachine.java
@@ -346,7 +346,13 @@ public abstract class GT_MetaTileEntity_BasicMachine extends GT_MetaTileEntity_B
     @Override
     public boolean onRightclick(IGregTechTileEntity aBaseMetaTileEntity, EntityPlayer aPlayer) {
         if (aBaseMetaTileEntity.isClientSide()) return true;
-        aBaseMetaTileEntity.openGUI(aPlayer);
+        for(byte i=0;i < 6; i++){
+        	if(aBaseMetaTileEntity.getAirAtSide(i)){
+        		aBaseMetaTileEntity.openGUI(aPlayer);
+        		return true;
+        	}        	
+        }
+        GT_Utility.sendChatToPlayer(aPlayer,"No free Side!");        
         return true;
     }
 
diff --git a/src/main/java/gregtech/loaders/misc/GT_CoverLoader.java b/src/main/java/gregtech/loaders/misc/GT_CoverLoader.java
index ae6c08a3..55d2e1af 100644
--- a/src/main/java/gregtech/loaders/misc/GT_CoverLoader.java
+++ b/src/main/java/gregtech/loaders/misc/GT_CoverLoader.java
@@ -19,7 +19,7 @@ public class GT_CoverLoader
         GregTech_API.registerCover(GT_ModHandler.getIC2Item("reactorVent", 1L, 1), new GT_RenderedTexture(Textures.BlockIcons.VENT_NORMAL), new GT_Cover_Vent(1));
         GregTech_API.registerCover(GT_ModHandler.getIC2Item("reactorVentCore", 1L, 1), new GT_RenderedTexture(Textures.BlockIcons.VENT_NORMAL), new GT_Cover_Vent(1));
         GregTech_API.registerCover(GT_ModHandler.getIC2Item("reactorVentGold", 1L, 1), new GT_RenderedTexture(Textures.BlockIcons.VENT_ADVANCED), new GT_Cover_Vent(2));
-        GregTech_API.registerCover(GT_ModHandler.getIC2Item("reactorVentSpread", 1L, 1), new GT_RenderedTexture(Textures.BlockIcons.VENT_NORMAL), new GT_Cover_Vent(2));
+        GregTech_API.registerCover(GT_ModHandler.getIC2Item("reactorVentSpread", 1L), new GT_RenderedTexture(Textures.BlockIcons.VENT_NORMAL), new GT_Cover_Vent(2));
         GregTech_API.registerCover(GT_ModHandler.getIC2Item("reactorVentDiamond", 1L, 1), new GT_RenderedTexture(Textures.BlockIcons.VENT_ADVANCED), new GT_Cover_Vent(3));
     }
 }