diff --git a/src/codechicken/microblock/CornerMicroblock.scala b/src/codechicken/microblock/CornerMicroblock.scala
index 3438780..7b8e413 100644
--- a/src/codechicken/microblock/CornerMicroblock.scala
+++ b/src/codechicken/microblock/CornerMicroblock.scala
@@ -14,7 +14,7 @@ object CornerPlacement extends PlacementProperties
     def opposite(slot:Int, side:Int) = ((slot-7)^(1<<(side>>1)))+7
 }
 
-object CornerMicroClass extends MicroblockClass
+object CornerMicroClass extends CommonMicroClass
 {
     var aBounds:Array[Cuboid6] = new Array(256)
     
@@ -32,22 +32,19 @@ object CornerMicroClass extends MicroblockClass
         }
     }
     
-    override def itemSlot = 7
-    
     def getName = "mcr_cnr"
+
+    def baseTrait = classOf[CornerMicroblock]
+    def clientTrait = classOf[CommonMicroblockClient]
     
-    def create(client:Boolean, material:Int) =
-        if(client)
-            new CornerMicroblock(material)with CommonMicroblockClient
-        else
-            new CornerMicroblock(material)
+    override def itemSlot = 7
     
     def placementProperties = CornerPlacement
 
     def getResistanceFactor = 1
 }
 
-class CornerMicroblock(material$:Int = 0) extends CommonMicroblock(material$)
+trait CornerMicroblock extends CommonMicroblock
 {
     override def setShape(size: Int, slot: Int) = shape = (size<<4|(slot-7)).toByte
     
diff --git a/src/codechicken/microblock/EdgeMicroblock.scala b/src/codechicken/microblock/EdgeMicroblock.scala
index 05d07a5..666ee94 100644
--- a/src/codechicken/microblock/EdgeMicroblock.scala
+++ b/src/codechicken/microblock/EdgeMicroblock.scala
@@ -66,7 +66,7 @@ object EdgePlacement extends PlacementProperties
     }
 }
 
-object EdgeMicroClass extends MicroblockClass
+object EdgeMicroClass extends CommonMicroClass
 {
     var aBounds:Array[Cuboid6] = new Array(256)
     
@@ -86,19 +86,16 @@ object EdgeMicroClass extends MicroblockClass
     override def itemSlot = 15
     
     def getName = "mcr_edge"
-    
-    def create(client:Boolean, material:Int) =
-        if(client)
-            new EdgeMicroblock(material) with CommonMicroblockClient
-        else
-            new EdgeMicroblock(material)
-    
+
+    def baseTrait = classOf[EdgeMicroblock]
+    def clientTrait = classOf[CommonMicroblockClient]
+
     def placementProperties = EdgePlacement
 
     def getResistanceFactor = 0.5F
 }
 
-class EdgeMicroblock(material$:Int = 0) extends CommonMicroblock(material$) with TEdgePart
+trait EdgeMicroblock extends CommonMicroblock with TEdgePart
 {
     override def setShape(size: Int, slot: Int) = shape = (size<<4|(slot-15)).toByte
 
@@ -109,7 +106,7 @@ class EdgeMicroblock(material$:Int = 0) extends CommonMicroblock(material$) with
     override def getSlot = getShape+15
 }
 
-object PostMicroClass
+object PostMicroClass extends MicroblockClass
 {
     var aBounds:Array[Cuboid6] = new Array(256)
     
@@ -125,14 +122,9 @@ object PostMicroClass
     }
     
     def getName = "mcr_post"
-    
-    def create(client:Boolean, material:Int) =
-        if(client)
-            new PostMicroblock(material) with PostMicroblockClient
-        else
-            new PostMicroblock(material)
-    
-    def register() = MultiPartRegistry.registerParts((_, c:Boolean) => create(c, 0), getName)
+
+    def baseTrait = classOf[PostMicroblock]
+    def clientTrait = classOf[PostMicroblockClient]
 
     def getResistanceFactor = 0.5F
 }
@@ -214,9 +206,9 @@ trait PostMicroblockClient extends PostMicroblock with MicroblockClient
     }
 }
 
-class PostMicroblock(material$:Int = 0) extends Microblock(material$) with JPartialOcclusion with TNormalOcclusion
+trait PostMicroblock extends Microblock with JPartialOcclusion with TNormalOcclusion
 {
-    override def getType = PostMicroClass.getName
+    def microClass = PostMicroClass
 
     def getBounds = PostMicroClass.aBounds(shape)
     
@@ -224,7 +216,7 @@ class PostMicroblock(material$:Int = 0) extends Microblock(material$) with JPart
     
     def getPartialOcclusionBoxes = getOcclusionBoxes
     
-    override def itemClassID = EdgeMicroClass.classID
+    override def itemClassID = EdgeMicroClass.getClassId
     
     override def occlusionTest(npart:TMultiPart): Boolean = 
     {
diff --git a/src/codechicken/microblock/FaceMicroblock.scala b/src/codechicken/microblock/FaceMicroblock.scala
index 17fa549..788ecf7 100644
--- a/src/codechicken/microblock/FaceMicroblock.scala
+++ b/src/codechicken/microblock/FaceMicroblock.scala
@@ -22,7 +22,9 @@ object FacePlacement extends PlacementProperties
     override def sneakOpposite(slot:Int, side:Int) = slot == (side^1)
 }
 
-object FaceMicroClass extends MicroblockClass
+class FaceMicroClass
+
+object FaceMicroClass extends CommonMicroClass
 {
     var aBounds:Array[Cuboid6] = new Array(256)
     
@@ -37,12 +39,11 @@ object FaceMicroClass extends MicroblockClass
     }
     
     def getName = "mcr_face"
-    
-    def create(client:Boolean, material:Int) =
-        if(client)
-            new FaceMicroblock(material) with FaceMicroblockClient
-        else
-            new FaceMicroblock(material)
+
+    def itemSlot = 3
+
+    def baseTrait = classOf[FaceMicroblock]
+    def clientTrait = classOf[FaceMicroblockClient]
     
     def placementProperties = FacePlacement
 
@@ -64,7 +65,7 @@ trait FaceMicroblockClient extends CommonMicroblockClient
     }
 }
 
-class FaceMicroblock(material$:Int = 0) extends CommonMicroblock(material$) with TFacePart
+trait FaceMicroblock extends CommonMicroblock with TFacePart
 {
     def microClass = FaceMicroClass
     
diff --git a/src/codechicken/microblock/HollowMicroblock.scala b/src/codechicken/microblock/HollowMicroblock.scala
index 8ec3eb7..16e4276 100644
--- a/src/codechicken/microblock/HollowMicroblock.scala
+++ b/src/codechicken/microblock/HollowMicroblock.scala
@@ -18,7 +18,6 @@ import codechicken.lib.lighting.LightMatrix
 
 object HollowPlacement extends PlacementProperties
 {
-
     object HollowPlacementGrid extends FaceEdgeGrid(3 / 8D)
 
     def microClass = HollowMicroClass
@@ -32,7 +31,7 @@ object HollowPlacement extends PlacementProperties
     override def sneakOpposite(slot: Int, side: Int) = slot == (side ^ 1)
 }
 
-object HollowMicroClass extends MicroblockClass
+object HollowMicroClass extends CommonMicroClass
 {
     var pBoxes: Array[Seq[Cuboid6]] = new Array(256)
     var occBounds: Array[Cuboid6] = new Array(256)
@@ -54,11 +53,10 @@ object HollowMicroClass extends MicroblockClass
 
     def getName = "mcr_hllw"
 
-    def create(client:Boolean, material:Int) =
-        if(client)
-            new HollowMicroblock(material) with HollowMicroblockClient
-        else
-            new HollowMicroblock(material)
+    def baseTrait = classOf[HollowMicroblock]
+    def clientTrait = classOf[HollowMicroblockClient]
+
+    def itemSlot = 3
 
     def placementProperties = HollowPlacement
 
@@ -172,7 +170,7 @@ trait HollowMicroblockClient extends HollowMicroblock with CommonMicroblockClien
     }
 }
 
-class HollowMicroblock(material$: Int = 0) extends CommonMicroblock(material$) with TFacePart with TNormalOcclusion
+trait HollowMicroblock extends CommonMicroblock with TFacePart with TNormalOcclusion
 {
     def microClass = HollowMicroClass
 
diff --git a/src/codechicken/microblock/ItemMicroPart.scala b/src/codechicken/microblock/ItemMicroPart.scala
index b47a236..2522628 100644
--- a/src/codechicken/microblock/ItemMicroPart.scala
+++ b/src/codechicken/microblock/ItemMicroPart.scala
@@ -11,7 +11,6 @@ import org.lwjgl.opengl.GL11
 import codechicken.microblock.MicroMaterialRegistry.IMicroMaterial
 import java.util.List
 import net.minecraft.creativetab.CreativeTabs
-import codechicken.microblock.MicroblockClassRegistry._
 import codechicken.lib.render.CCRenderState
 import net.minecraft.client.renderer.texture.IIconRegister
 import codechicken.microblock.handler.MicroblockProxy
@@ -22,6 +21,7 @@ import codechicken.lib.raytracer.RayTracer
 import codechicken.lib.vec.Vector3
 import codechicken.lib.render.TextureUtils
 import net.minecraft.util.MovingObjectPosition.MovingObjectType
+import CommonMicroClass._
 
 class ItemMicroPart extends Item
 {
@@ -31,7 +31,7 @@ class ItemMicroPart extends Item
     override def getItemStackDisplayName(stack:ItemStack):String =
     {
         val material = getMaterial(stack)
-        val mcrClass = MicroblockClassRegistry.getMicroClass(stack.getItemDamage)
+        val mcrClass = getMicroClass(stack.getItemDamage)
         val size = stack.getItemDamage&0xFF
         if(material == null || mcrClass == null)
             return "Unnamed"
@@ -56,7 +56,7 @@ class ItemMicroPart extends Item
     override def onItemUse(item:ItemStack, player:EntityPlayer, world:World, x:Int, y:Int, z:Int, s:Int, hitX:Float, hitY:Float, hitZ:Float):Boolean =
     {
         val material = getMaterialID(item)
-        val mcrClass = MicroblockClassRegistry.getMicroClass(item.getItemDamage)
+        val mcrClass = getMicroClass(item.getItemDamage)
         val size = item.getItemDamage&0xFF
         if(material < 0 || mcrClass == null)
             return false
@@ -134,7 +134,7 @@ object ItemMicroPartRenderer extends IItemRenderer
     def renderItem(t:ItemRenderType, item:ItemStack, data:Object*)
     {
         val material = getMaterial(item)
-        val mcrClass = MicroblockClassRegistry.getMicroClass(item.getItemDamage)
+        val mcrClass = getMicroClass(item.getItemDamage)
         val size = item.getItemDamage&0xFF
         if(material == null || mcrClass == null)
             return
@@ -160,7 +160,7 @@ object ItemMicroPartRenderer extends IItemRenderer
     def renderHighlight(player:EntityPlayer, stack:ItemStack, hit:MovingObjectPosition):Boolean =
     {
         val material = getMaterialID(stack)
-        val mcrClass = MicroblockClassRegistry.getMicroClass(stack.getItemDamage)
+        val mcrClass = getMicroClass(stack.getItemDamage)
         val size = stack.getItemDamage&0xFF
         if(material < 0 || mcrClass == null)
             return false
diff --git a/src/codechicken/microblock/MicroMaterialRegistry.scala b/src/codechicken/microblock/MicroMaterialRegistry.scala
index 680d1b5..949052d 100644
--- a/src/codechicken/microblock/MicroMaterialRegistry.scala
+++ b/src/codechicken/microblock/MicroMaterialRegistry.scala
@@ -107,7 +107,7 @@ object MicroMaterialRegistry
         /**
          * Return true if a custom highlight was rendered and the default should be skipped
          */
-        def renderHighlight(player: EntityPlayer, hit: MovingObjectPosition, mcrClass: MicroblockClass, size: Int, material: Int): Boolean
+        def renderHighlight(player: EntityPlayer, hit: MovingObjectPosition, mcrClass: CommonMicroClass, size: Int, material: Int): Boolean
     }
 
     private val typeMap = HashMap[String, IMicroMaterial]()
@@ -229,7 +229,7 @@ object MicroMaterialRegistry
 
     def getIdMap = idMap
 
-    def renderHighlight(player: EntityPlayer, hit: MovingObjectPosition, mcrClass: MicroblockClass, size: Int, material: Int): Boolean = {
+    def renderHighlight(player: EntityPlayer, hit: MovingObjectPosition, mcrClass: CommonMicroClass, size: Int, material: Int): Boolean = {
         val overridden = highlightRenderers.find(_.renderHighlight(player, hit, mcrClass, size, material))
         if (overridden.isDefined)
             return true
diff --git a/src/codechicken/microblock/CommonMicroblock.scala b/src/codechicken/microblock/Microblock.scala
similarity index 64%
rename from src/codechicken/microblock/CommonMicroblock.scala
rename to src/codechicken/microblock/Microblock.scala
index 23f1974..2682d0f 100644
--- a/src/codechicken/microblock/CommonMicroblock.scala
+++ b/src/codechicken/microblock/Microblock.scala
@@ -31,48 +31,88 @@ import net.minecraft.init.Blocks
 import cpw.mods.fml.relauncher.{Side, SideOnly}
 import codechicken.lib.render.BlockRenderer.BlockFace
 
-object MicroblockRender
+abstract class Microblock(var material:Int = 0) extends TCuboidPart
 {
-    def renderHighlight(player:EntityPlayer, hit:MovingObjectPosition, mcrClass:MicroblockClass, size:Int, material:Int)
-    {
-        mcrClass.placementProperties.placementGrid.render(new Vector3(hit.hitVec), hit.sideHit)
+    var shape:Byte = 0
 
-        val placement = MicroblockPlacement(player, hit, size, material, !player.capabilities.isCreativeMode, mcrClass.placementProperties)
-        if(placement == null)
-            return
-        val pos = placement.pos
-        val part = placement.part.asInstanceOf[MicroblockClient]
+    def microClass:MicroblockClass
 
-        GL11.glPushMatrix()
-        GL11.glTranslated(pos.x+0.5, pos.y+0.5, pos.z+0.5)
-        GL11.glScaled(1.002, 1.002, 1.002)
-        GL11.glTranslated(-0.5, -0.5, -0.5)
-        
-        GL11.glEnable(GL11.GL_BLEND)
-        GL11.glDepthMask(false)
-        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA)
+    def getType = microClass.getName
 
-        TextureUtils.bindAtlas(0)
-        CCRenderState.reset()
-        CCRenderState.alphaOverride = 80
-        CCRenderState.useNormals = true
-        CCRenderState.startDrawing()
-        part.render(Vector3.zero, -1)
-        CCRenderState.draw()
-        
-        GL11.glDisable(GL11.GL_BLEND)
-        GL11.glDepthMask(true)
-        GL11.glPopMatrix()
+    override def getStrength(hit:MovingObjectPosition, player:EntityPlayer) = getIMaterial match {
+        case null => super.getStrength(hit, player)
+        case mat => mat.getStrength(player)
     }
 
-    val face = new BlockFace()
-    def renderCuboid(pos:Vector3, mat:IMicroMaterial, pass:Int, c:Cuboid6, faces:Int) {
-        CCRenderState.setModel(face)
-        for(s <- 0 until 6 if (faces & 1<<s) == 0) {
-            face.loadCuboidFace(c, s)
-            mat.renderMicroFace(pos, pass, c)
+    override def doesTick = false
+    
+    def getSize = shape>>4
+    
+    def getShape = shape&0xF
+
+    def setShape(size:Int, slot:Int) = shape = (size<<4|slot).toByte
+
+    def getMaterial = material
+    
+    def getIMaterial = MicroMaterialRegistry.getMaterial(material)
+    
+    def itemClassID:Int
+    
+    override def getDrops = {
+        var size = getSize
+        val items = ListBuffer[ItemStack]()
+        for(s <- Seq(4, 2, 1))
+        {
+            val m = size/s
+            size-=m*s
+            if(m > 0)
+                items+=ItemMicroPart.create(m, s|itemClassID<<8, MicroMaterialRegistry.materialName(material))
         }
+        items
     }
+    
+    override def pickItem(hit:MovingObjectPosition):ItemStack =  {
+        val size = getSize
+        for(s <- Seq(4, 2, 1))
+            if(size%s == 0 && size/s >= 1)
+                return ItemMicroPart.create(s|itemClassID<<8, MicroMaterialRegistry.materialName(material))
+
+        return null//unreachable
+    }
+    
+    override def writeDesc(packet:MCDataOutput) {
+        writeMaterialID(packet, material)
+        packet.writeByte(shape)
+    }
+    
+    override def readDesc(packet:MCDataInput) {
+        shape = packet.readByte
+    }
+
+    def sendShapeUpdate() {
+        getWriteStream.writeByte(shape)
+    }
+    
+    override def read(packet:MCDataInput) {
+        super.read(packet)
+        tile.notifyPartChange(this)
+    }
+    
+    override def save(tag:NBTTagCompound) {
+        tag.setByte("shape", shape)
+        tag.setString("material", materialName(material))
+    }
+    
+    override def load(tag:NBTTagCompound) {
+        shape = tag.getByte("shape")
+        material = materialID(tag.getString("material"))
+    }
+    
+    def isTransparent = getIMaterial.isTransparent
+    
+    override def getLightValue = getIMaterial.getLightValue
+
+    override def explosionResistance(entity:Entity) = getIMaterial.explosionResistance(entity) * microClass.getResistanceFactor
 }
 
 trait MicroblockClient extends Microblock with TIconHitEffects with IMicroMaterialRender
@@ -96,92 +136,6 @@ trait MicroblockClient extends Microblock with TIconHitEffects with IMicroMateri
     override def getRenderBounds = getBounds
 }
 
-abstract class Microblock(var material:Int = 0) extends TCuboidPart
-{
-    var shape:Byte = 0
-
-    override def getStrength(hit:MovingObjectPosition, player:EntityPlayer) = getIMaterial match {
-        case null => super.getStrength(hit, player)
-        case mat => mat.getStrength(player)
-    }
-
-    override def doesTick = false
-    
-    def getSize = shape>>4
-    
-    def getShape = shape&0xF
-
-    def setShape(size:Int, slot:Int) = shape = (size<<4|slot).toByte
-
-    def getMaterial = material
-    
-    def getIMaterial = MicroMaterialRegistry.getMaterial(material)
-    
-    def itemClassID:Int = -1
-    
-    override def getDrops =
-    {
-        var size = getSize
-        val items = ListBuffer[ItemStack]()
-        for(s <- Seq(4, 2, 1))
-        {
-            val m = size/s
-            size-=m*s
-            if(m > 0)
-                items+=ItemMicroPart.create(m, s|itemClassID<<8, MicroMaterialRegistry.materialName(material))
-        }
-        items
-    }
-    
-    override def pickItem(hit:MovingObjectPosition):ItemStack = 
-    {
-        val size = getSize
-        for(s <- Seq(4, 2, 1))
-            if(size%s == 0 && size/s >= 1)
-                return ItemMicroPart.create(s|itemClassID<<8, MicroMaterialRegistry.materialName(material))
-        return null//unreachable
-    }
-    
-    override def writeDesc(packet:MCDataOutput)
-    {
-        packet.writeByte(shape)
-        writeMaterialID(packet, material)
-    }
-    
-    override def readDesc(packet:MCDataInput)
-    {
-        shape = packet.readByte
-        material = readMaterialID(packet)
-    }
-    
-    override def read(packet:MCDataInput)
-    {
-        readDesc(packet)
-        tile.notifyPartChange(this)
-        tile.markRender()
-    }
-    
-    override def save(tag:NBTTagCompound)
-    {
-        tag.setByte("shape", shape)
-        tag.setString("material", materialName(material))
-    }
-    
-    override def load(tag:NBTTagCompound)
-    {
-        shape = tag.getByte("shape")
-        material = materialID(tag.getString("material"))
-    }
-    
-    def isTransparent = getIMaterial.isTransparent
-    
-    override def getLightValue = getIMaterial.getLightValue
-
-    def getResistanceFactor:Float
-
-    override def explosionResistance(entity:Entity) = getIMaterial.explosionResistance(entity)*getResistanceFactor
-}
-
 trait CommonMicroblockClient extends CommonMicroblock with MicroblockClient with TMicroOcclusionClient
 {
     def render(pos:Vector3, pass:Int) {
@@ -192,19 +146,13 @@ trait CommonMicroblockClient extends CommonMicroblock with MicroblockClient with
     }
 }
 
-abstract class CommonMicroblock(material$:Int) extends Microblock(material$) with JPartialOcclusion with TMicroOcclusion with TSlottedPart
+trait CommonMicroblock extends Microblock with JPartialOcclusion with TMicroOcclusion with TSlottedPart
 {
-    def microClass:MicroblockClass
-    
-    def getType = microClass.getName
+    def microClass:CommonMicroClass
 
     def getSlot = getShape
-    
     def getSlotMask = 1<<getSlot
-    
     def getPartialOcclusionBoxes = Seq(getBounds)
     
-    override def itemClassID = microClass.classID
-
-    def getResistanceFactor = microClass.getResistanceFactor
+    override def itemClassID = microClass.getClassId
 }
\ No newline at end of file
diff --git a/src/codechicken/microblock/MicroblockClass.scala b/src/codechicken/microblock/MicroblockClass.scala
index ae7015c..0bf12d5 100644
--- a/src/codechicken/microblock/MicroblockClass.scala
+++ b/src/codechicken/microblock/MicroblockClass.scala
@@ -1,18 +1,57 @@
 package codechicken.microblock
 
-trait MicroblockClass
-{
-    var classID:Int = _
-    
-    def itemSlot = 3
-    
-    def getName:String
-    
-    def create(client:Boolean, material:Int):CommonMicroblock
-    
-    def placementProperties:PlacementProperties
-    
-    def register(id:Int) = MicroblockClassRegistry.registerMicroClass(this, id)
+import codechicken.multipart.{TMultiPart, MultiPartRegistry}
+import codechicken.multipart.MultiPartRegistry.IPartFactory2
+import net.minecraft.nbt.NBTTagCompound
+import codechicken.lib.data.MCDataInput
 
+abstract class MicroblockClass extends IPartFactory2
+{
+    def getName:String
+    def baseTrait:Class[_ <: Microblock]
+    def clientTrait:Class[_ <: MicroblockClient]
     def getResistanceFactor:Float
+
+    val baseTraitId = MicroblockGenerator.registerTrait(baseTrait)
+    val clientTraitId = MicroblockGenerator.registerTrait(clientTrait)
+
+    def register() {
+        MultiPartRegistry.registerParts(this, getName)
+    }
+
+    def create(client:Boolean, material:Int) = MicroblockGenerator.create(this, material, client)
+    override def createPart(name: String, packet: MCDataInput) = create(true, MicroMaterialRegistry.readMaterialID(packet))
+    override def createPart(name: String, nbt: NBTTagCompound) = create(false, MicroMaterialRegistry.materialID(nbt.getString("material")))
+}
+
+/**
+ * Microblocks with corresponding items
+ */
+abstract class CommonMicroClass extends MicroblockClass
+{
+    private var classId:Int = _
+
+    def getClassId = classId
+    def itemSlot:Int
+    def placementProperties:PlacementProperties
+
+    def register(id:Int) {
+        register()
+        classId = id
+        CommonMicroClass.registerMicroClass(this, id)
+    }
+}
+
+object CommonMicroClass
+{
+    val classes = new Array[CommonMicroClass](256)
+
+    def getMicroClass(modelId:Int) = classes(modelId>>8)
+
+    def registerMicroClass(mcrClass:CommonMicroClass, id:Int) {
+        if(classes(id) != null)
+            throw new IllegalArgumentException("Microblock class id "+id+" is already taken by "+classes(id).getName+" when adding "+mcrClass.getName)
+
+        classes(id) = mcrClass
+    }
 }
\ No newline at end of file
diff --git a/src/codechicken/microblock/MicroblockClassRegistry.scala b/src/codechicken/microblock/MicroblockClassRegistry.scala
deleted file mode 100644
index 7f9f978..0000000
--- a/src/codechicken/microblock/MicroblockClassRegistry.scala
+++ /dev/null
@@ -1,20 +0,0 @@
-package codechicken.microblock
-
-import codechicken.multipart.MultiPartRegistry
-
-object MicroblockClassRegistry
-{
-    val classes = new Array[MicroblockClass](256)
-    
-    def getMicroClass(modelId:Int) = classes(modelId>>8)
-    
-    def registerMicroClass(mcrClass:MicroblockClass, id:Int)
-    {
-        if(classes(id) != null)
-            throw new IllegalArgumentException("Microblock class id "+id+" is already taken by "+classes(id).getName+" when adding "+mcrClass.getName)
-        
-        classes(id) = mcrClass
-        mcrClass.classID = id
-        MultiPartRegistry.registerParts((_, c:Boolean) => mcrClass.create(c, 0), mcrClass.getName)
-    }
-}
\ No newline at end of file
diff --git a/src/codechicken/microblock/MicroblockGenerator.scala b/src/codechicken/microblock/MicroblockGenerator.scala
new file mode 100644
index 0000000..20bb285
--- /dev/null
+++ b/src/codechicken/microblock/MicroblockGenerator.scala
@@ -0,0 +1,28 @@
+package codechicken.microblock
+
+import codechicken.multipart.asm.ASMMixinFactory
+import java.util.BitSet
+
+object MicroblockGenerator extends ASMMixinFactory(classOf[Microblock], classOf[Int])
+{
+    trait IGeneratedMaterial
+    {
+        def addTraits(traits:BitSet, mcrClass:MicroblockClass, client:Boolean)
+    }
+
+    //scratch bitset
+    private val bitset = new BitSet
+
+    def create(mcrClass: MicroblockClass, material: Int, client: Boolean) = {
+        bitset.clear()
+        bitset.set(mcrClass.baseTraitId)
+        if(client) bitset.set(mcrClass.clientTraitId)
+
+        MicroMaterialRegistry.getMaterial(material) match {
+            case genMat:IGeneratedMaterial => genMat.addTraits(bitset, mcrClass, client)
+            case _ =>
+        }
+
+        construct(bitset, material:Integer)
+    }
+}
diff --git a/src/codechicken/microblock/MicroblockPlacement.scala b/src/codechicken/microblock/MicroblockPlacement.scala
index 303faba..e41d5b8 100644
--- a/src/codechicken/microblock/MicroblockPlacement.scala
+++ b/src/codechicken/microblock/MicroblockPlacement.scala
@@ -36,7 +36,7 @@ class ExpandingPlacement($pos:BlockCoord, $part:Microblock, opart:Microblock) ex
     {
         opart.shape = part.shape
         opart.tile.notifyPartChange(opart)
-        opart.sendDescUpdate()
+        opart.sendShapeUpdate()
     }
     
     def consume(world:World, player:EntityPlayer, item:ItemStack)
diff --git a/src/codechicken/microblock/MicroblockRender.scala b/src/codechicken/microblock/MicroblockRender.scala
new file mode 100644
index 0000000..27c149e
--- /dev/null
+++ b/src/codechicken/microblock/MicroblockRender.scala
@@ -0,0 +1,55 @@
+package codechicken.microblock
+
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.util.MovingObjectPosition
+import codechicken.lib.vec.{Cuboid6, Vector3}
+import org.lwjgl.opengl.GL11._
+import codechicken.lib.render.{CCRenderState, TextureUtils}
+import codechicken.lib.render.BlockRenderer.BlockFace
+import codechicken.microblock.MicroMaterialRegistry.IMicroMaterial
+
+object MicroblockRender
+{
+    def renderHighlight(player:EntityPlayer, hit:MovingObjectPosition, mcrClass:CommonMicroClass, size:Int, material:Int)
+    {
+        mcrClass.placementProperties.placementGrid.render(new Vector3(hit.hitVec), hit.sideHit)
+
+        val placement = MicroblockPlacement(player, hit, size, material, !player.capabilities.isCreativeMode, mcrClass.placementProperties)
+        if(placement == null)
+            return
+        val pos = placement.pos
+        val part = placement.part.asInstanceOf[MicroblockClient]
+
+        glPushMatrix()
+        glTranslated(pos.x+0.5, pos.y+0.5, pos.z+0.5)
+        glScaled(1.002, 1.002, 1.002)
+        glTranslated(-0.5, -0.5, -0.5)
+
+        glEnable(GL_BLEND)
+        glDepthMask(false)
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
+
+        TextureUtils.bindAtlas(0)
+        CCRenderState.reset()
+        CCRenderState.alphaOverride = 80
+        CCRenderState.useNormals = true
+        CCRenderState.startDrawing()
+        part.render(Vector3.zero, -1)
+        CCRenderState.draw()
+
+        glDisable(GL_BLEND)
+        glDepthMask(true)
+        glPopMatrix()
+    }
+
+    val face = new BlockFace()
+    def renderCuboid(pos:Vector3, mat:IMicroMaterial, pass:Int, c:Cuboid6, faces:Int) {
+        CCRenderState.setModel(face)
+        for(s <- 0 until 6 if (faces & 1<<s) == 0) {
+            face.loadCuboidFace(c, s)
+            mat.renderMicroFace(pos, pass, c)
+        }
+    }
+}
+
+
diff --git a/src/codechicken/multipart/MultipartGenerator.scala b/src/codechicken/multipart/MultipartGenerator.scala
index babdfec..a6cad51 100644
--- a/src/codechicken/multipart/MultipartGenerator.scala
+++ b/src/codechicken/multipart/MultipartGenerator.scala
@@ -31,7 +31,7 @@ object MultipartGenerator
     private val clientTraitId = MultipartMixinFactory.registerTrait(classOf[TileMultipartClient])
     
     //scratch bitset
-    private val bitset = new BitSet()
+    private val bitset = new BitSet
 
     private def partTraitMap(client:Boolean) = if(client) partTraitMap_c else partTraitMap_s
     private def interfaceTraitMap(client:Boolean) = if(client) interfaceTraitMap_c else interfaceTraitMap_s
diff --git a/src/codechicken/multipart/asm/ASMMixinCompiler.scala b/src/codechicken/multipart/asm/ASMMixinCompiler.scala
index 6fe139a..0f4838b 100644
--- a/src/codechicken/multipart/asm/ASMMixinCompiler.scala
+++ b/src/codechicken/multipart/asm/ASMMixinCompiler.scala
@@ -49,9 +49,6 @@ object DebugPrinter
 
 object ASMMixinCompiler
 {
-
-    import StackAnalyser.width
-
     val cl = getClass.getClassLoader.asInstanceOf[LaunchClassLoader]
     val m_defineClass = classOf[ClassLoader].getDeclaredMethod("defineClass", classOf[Array[Byte]], Integer.TYPE, Integer.TYPE)
     val m_runTransformers = classOf[LaunchClassLoader].getDeclaredMethod("runTransformers", classOf[String], classOf[String], classOf[Array[Byte]])
@@ -79,7 +76,7 @@ object ASMMixinCompiler
 
     def getBytes(name: String): Array[Byte] = {
         val jName = name.replace('/', '.')
-        if (jName.equals("java.lang.Object"))
+        if (jName == "java.lang.Object")
             return null
 
         def useTransformers = f_transformerExceptions.get(cl).asInstanceOf[JSet[String]]
@@ -108,13 +105,6 @@ object ASMMixinCompiler
         }
     }
 
-    def isScala(cnode: ClassNode) = ScalaSigReader.ann(cnode).isDefined
-
-    def isTrait(cnode: ClassNode) = {
-        val csym: ClassSymbol = ScalaSigReader.read(ScalaSigReader.ann(cnode).get).evalT(0)
-        csym.isTrait && !csym.isInterface
-    }
-
     def getMixinInfo(name: String) = mixinMap.get(name)
 
     case class FieldMixin(name: String, desc: String, access: Int)
@@ -137,6 +127,7 @@ object ASMMixinCompiler
         def owner: ClassInfo
         def name: String
         def desc: String
+        def exceptions: Array[String]
         def isPrivate: Boolean
         def isAbstract: Boolean
 
@@ -147,15 +138,19 @@ object ASMMixinCompiler
     {
         def name: String
         def superClass: Option[ClassInfo]
-        def interfaces: Seq[ClassInfo]
-        def methods: Seq[MethodInfo]
+        def interfaces: Iterable[ClassInfo]
+        def methods: Iterable[MethodInfo]
 
-        override def toString = getClass.getSimpleName+"("+name+")"
+        override def toString = getClass.getName.replaceAll(".+[\\$\\.]", "")+"("+name+")"
 
-        def getMethod(name:String, desc:String) = methods.find(m => m.name == name && m.desc == desc)
-        def findMethod(name:String, desc:String, f:(MethodInfo)=>Boolean):Option[MethodInfo] =
-            getMethod(name, desc).filter(f) orElse (superClass ++ interfaces).view.flatMap(_.findMethod(name, desc, f)).headOption
-        def findPublicImpl(name:String, desc:String) = findMethod(name, desc, m => !m.isAbstract && !m.isPrivate)
+        def parentMethods = (superClass ++ interfaces).view.flatMap(_.allMethods)
+        def allMethods:Iterable[MethodInfo] = methods ++ parentMethods
+        def findPublicImpl(name:String, desc:String) = allMethods.find(m => m.name == name && m.desc == desc && !m.isAbstract && !m.isPrivate)
+
+        def isScala = false
+        def isTrait = false
+        def isObject = false
+        def moduleName = name
     }
 
     private val infoCache = MMap[String, ClassInfo]()
@@ -174,6 +169,7 @@ object ASMMixinCompiler
                 def owner = ReflectionClassInfo.this
                 def name = method.getName
                 def desc = getType(method).getDescriptor
+                def exceptions = method.getExceptionTypes.map(_.nodeName)
                 def isPrivate = Modifier.isPrivate(method.getModifiers)
                 def isAbstract = Modifier.isAbstract(method.getModifiers)
             }
@@ -184,13 +180,14 @@ object ASMMixinCompiler
             def methods = clazz.getMethods.map(ReflectionMethodInfo(_))
         }
 
-        class ClassNodeInfo(cnode: ClassNode) extends ClassInfo
+        class ClassNodeInfo(val cnode: ClassNode) extends ClassInfo
         {
             case class MethodNodeInfoSource(mnode: MethodNode) extends MethodInfo
             {
                 def owner = ClassNodeInfo.this
                 def name = mnode.name
                 def desc = mnode.desc
+                def exceptions = Array(mnode.exceptions:_*)
                 def isPrivate = (mnode.access & ACC_PRIVATE) != 0
                 def isAbstract = (mnode.access & ACC_ABSTRACT) != 0
             }
@@ -201,13 +198,16 @@ object ASMMixinCompiler
             def methods = cnode.methods.map(MethodNodeInfoSource)
         }
 
-        class ScalaClassInfo(cnode: ClassNode) extends ClassNodeInfo(cnode)
+        class ScalaClassInfo(cnode$: ClassNode) extends ClassNodeInfo(cnode$)
         {
             val sig = ScalaSigReader.read(ScalaSigReader.ann(cnode).get)
             val csym = sig.evalT(0): ClassSymbol
 
             override def superClass = Some(csym.jParent(sig))
             override def interfaces = csym.jInterfaces(sig).map(getClassInfo)
+            override def isScala = true
+
+            override def isTrait = csym.isTrait
         }
 
         private[ASMMixinCompiler] def obtainInfo(name: String): ClassInfo = name match {
@@ -217,12 +217,14 @@ object ASMMixinCompiler
                     case null => null
                     case c => new ReflectionClassInfo(c)
                 }
-                case v if isScala(v) => new ScalaClassInfo(v)
+                case v if ScalaSigReader.ann(v).isDefined => new ScalaClassInfo(v)
                 case v => new ClassNodeInfo(v)
             }
         }
     }
 
+    import StackAnalyser.width
+
     def finishBridgeCall(mv: MethodVisitor, mvdesc: String, opcode: Int, owner: String, name: String, desc: String) {
         val args = getArgumentTypes(mvdesc)
         val ret = getReturnType(mvdesc)
@@ -249,20 +251,22 @@ object ASMMixinCompiler
         val startTime = System.currentTimeMillis
 
         val baseTraits = traits.map(mixinMap)
-        val traitInfos = baseTraits.flatMap(_.linearise).distinct
-        val parentInfo = getClassInfo(superClass)
+        val mixinInfos = baseTraits.flatMap(_.linearise).distinct
+        val baseInfo = getClassInfo(superClass)
+        val traitInfos = mixinInfos.map(i => getClassInfo(i.name))
 
         val cnode = new ClassNode()
         //implements list
         cnode.visit(V1_6, ACC_PUBLIC, name, null, superClass, baseTraits.map(_.name).toArray[String])
 
-        val minit = cnode.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null)
-        minit.visitVarInsn(ALOAD, 0)
-        minit.visitMethodInsn(INVOKESPECIAL, cnode.superName, "<init>", "()V", false)
+        val cinit = baseInfo.methods.find(_.name == "<init>").get
+        val minit = cnode.visitMethod(ACC_PUBLIC, "<init>", cinit.desc, null, null).asInstanceOf[MethodNode]
+        writeBridge(minit, cinit.desc, INVOKESPECIAL, superClass, "<init>", cinit.desc)
+        minit.instructions.remove(minit.instructions.getLast)//remove the RETURN from writeBridge
 
         val prevInfos = MList[MixinInfo]()
 
-        traitInfos.foreach { t =>
+        mixinInfos.foreach { t =>
             minit.visitVarInsn(ALOAD, 0)
             minit.visitMethodInsn(INVOKESTATIC, t.tname, "$init$", "(L" + t.name + ";)V", false)
 
@@ -288,10 +292,10 @@ object ASMMixinCompiler
                 val (name, desc) = seperateDesc(s)
                 val mv = cnode.visitMethod(ACC_PUBLIC, t.name.replace('/', '$') + "$$super$" + name, desc, null, null).asInstanceOf[MethodNode]
 
-                prevInfos.reverse.find(t => t.supers.contains(s)) match {
+                prevInfos.reverse.find(_.methods.exists(m => m.name == name && m.desc == desc)) match {
                     //each super goes to the one before
                     case Some(st) => writeStaticBridge(mv, name, st)
-                    case None => writeBridge(mv, desc, INVOKESPECIAL, parentInfo.findPublicImpl(name, desc).get.owner.name, name, desc)
+                    case None => writeBridge(mv, desc, INVOKESPECIAL, baseInfo.findPublicImpl(name, desc).get.owner.name, name, desc)
                 }
             }
 
@@ -299,10 +303,10 @@ object ASMMixinCompiler
         }
 
         val methodSigs = MSet[String]()
-        traitInfos.reverse.foreach { t => //last trait gets first pick on methods
+        mixinInfos.reverse.foreach { t => //last trait gets first pick on methods
             t.methods.foreach { m =>
                 if (!methodSigs(m.name + m.desc)) {
-                    val mv = cnode.visitMethod(ACC_PUBLIC, m.name, m.desc, null, Array(m.exceptions: _*)).asInstanceOf[MethodNode]
+                    val mv = cnode.visitMethod(ACC_PUBLIC, m.name, m.desc, null, Array(m.exceptions:_*)).asInstanceOf[MethodNode]
                     writeStaticBridge(mv, m.name, t)
                     methodSigs += m.name + m.desc
                 }
@@ -310,11 +314,27 @@ object ASMMixinCompiler
         }
 
         minit.visitInsn(RETURN)
-        minit.visitMaxs(1, 1)
 
-        val c = define(cnode.name, createBytes(cnode, 0))
+        //generate synthetic bridge methods for covariant return types
+        def allParents(info:ClassInfo):Iterable[ClassInfo] = info +: (info.superClass ++ info.interfaces).toSeq.flatMap(allParents)
+        val allParentInfos = (baseInfo +: traitInfos).flatMap(allParents).distinct
+        val allParentMethods = allParentInfos.flatMap(_.methods)
+        methodSigs.seq.foreach { nameDesc =>
+            val (name, desc) = seperateDesc(nameDesc)
+            val pDesc = desc.substring(0, desc.lastIndexOf(')')+1)
 
-        DebugPrinter.logger.debug("Generation ["+superClass+" with "+traits.mkString(", ")+"] took: "+(System.currentTimeMillis-startTime))
+            allParentMethods.filter(m => m.name == name && m.desc.startsWith(pDesc)).foreach { m =>
+                if(!methodSigs(m.name+m.desc)) {
+                    val mv = cnode.visitMethod(ACC_PUBLIC | ACC_SYNTHETIC | ACC_BRIDGE, m.name, m.desc, null, m.exceptions).asInstanceOf[MethodNode]
+                    writeBridge(mv, mv.desc, INVOKEVIRTUAL, cnode.name, name, desc)
+                    methodSigs += m.name + m.desc
+                }
+            }
+        }
+
+        val c = define(name, createBytes(cnode, 0))
+
+        DebugPrinter.logger.debug("Generation ["+superClass+" with "+traits.mkString(", ")+"] took "+(System.currentTimeMillis-startTime)+"ms")
         c
     }
 
@@ -347,7 +367,10 @@ object ASMMixinCompiler
         getClassInfo(stack.owner.getInternalName).superClass.flatMap(_.findPublicImpl(methodName, minsn.desc))
     }
 
-    def getAndRegisterParentTraits(cnode: ClassNode) = cnode.interfaces.map(classNode).filter(i => isScala(i) && isTrait(i)).map(registerScalaTrait)
+    def getAndRegisterParentTraits(cnode: ClassNode) = cnode.interfaces.map(getClassInfo).collect{
+        case i: ClassInfo.ScalaClassInfo if i.isTrait && !i.csym.isInterface =>
+            registerScalaTrait(i.cnode)
+    }
 
     def registerJavaTrait(cnode: ClassNode) {
         if ((cnode.access & ACC_INTERFACE) != 0)
@@ -427,7 +450,7 @@ object ASMMixinCompiler
                             if (getSuper(minsn, stack).isDefined)
                                 replace(superInsn(minsn))
                         case INVOKEVIRTUAL =>
-                            if (minsn.owner.equals(cnode.name)) {
+                            if (minsn.owner == cnode.name) {
                                 if (methodSigs.contains(minsn.name + minsn.desc)) {//call the interface method
                                     replace(new MethodInsnNode(INVOKEINTERFACE, minsn.owner, minsn.name, minsn.desc, true))
                                 } else {
@@ -448,11 +471,11 @@ object ASMMixinCompiler
         }
 
         def convertMethod(mnode: MethodNode) {
-            if (mnode.name.equals("<clinit>"))
+            if (mnode.name == "<clinit>")
                 throw new IllegalArgumentException("Static initialisers are not permitted " + cnode.name + " as a mixin trait")
 
-            if (mnode.name.equals("<init>")) {
-                if (!mnode.desc.equals("()V"))
+            if (mnode.name == "<init>") {
+                if (mnode.desc != "()V")
                     throw new IllegalArgumentException("Constructor arguments are not permitted " + cnode.name + " as a mixin trait")
 
                 val mv = staticClone(mnode, "$init$", ACC_PUBLIC)
@@ -504,30 +527,29 @@ object ASMMixinCompiler
         val methods = MList[MethodNode]()
         val supers = MList[String]()
 
-        val sig = ScalaSigReader.read(ScalaSigReader.ann(cnode).get)
-        val csym: ClassSymbol = sig.evalT(0)
+        val info = getClassInfo(cnode).asInstanceOf[ClassInfo.ScalaClassInfo]
+        val sig = info.sig
+        val csym = info.csym
         for (i <- 0 until sig.table.length) {
             import ScalaSignature._
 
             val e = sig.table(i)
             if (e.id == 8) {//method
                 val sym: MethodSymbol = sig.evalT(i)
-                if (sym.isParam || !sym.owner.equals(csym)) {}
+                if (sym.isParam || sym.owner != csym) {}
                 else if (sym.isAccessor) {
                     fieldAccessors.put(sym.name, sym)
                 }
                 else if (sym.isMethod) {
                     val desc = sym.jDesc(sig)
-                    if (sym.name.contains("super$")) {
+                    if (sym.name.startsWith("super$"))
                         supers += sym.name.substring(6) + desc
-                    }
-                    else if (!sym.name.equals("$init$") && !sym.isPrivate) {
-                        val map = new ObfMapping(cnode.name, sym.name, desc)
-                        val method = findMethod(map, cnode)
-                        if (method == null)
-                            throw new RuntimeException("Unable to add mixin trait: " + map + " found in scala signature but not in class file. Most likely an obfuscation issue.")
-                        methods += method
-                    }
+                    else if (!sym.isPrivate && !sym.isDeferred && sym.name != "$init$")
+                        methods += (cnode.methods.find(m => m.name == sym.name && m.desc == desc) match {
+                            case Some(m) => m
+                            case None => throw new IllegalArgumentException("Unable to add mixin trait "+cnode.name+": " +
+                                sym.name + desc + " found in scala signature but not in class file. Most likely an obfuscation issue.")
+                        })
                 }
                 else {
                     fields += FieldMixin(sym.name.trim, getReturnType(sym.jDesc(sig)).getDescriptor,
@@ -536,8 +558,8 @@ object ASMMixinCompiler
             }
         }
 
-        val info = MixinInfo(cnode.name, csym.jParent(sig), parentTraits, fields, methods, supers)
-        mixinMap.put(cnode.name, info)
-        info
+        val mixin = MixinInfo(cnode.name, csym.jParent(sig), parentTraits, fields, methods, supers)
+        mixinMap.put(cnode.name, mixin)
+        mixin
     }
 }
\ No newline at end of file
diff --git a/src/codechicken/multipart/asm/ASMMixinFactory.scala b/src/codechicken/multipart/asm/ASMMixinFactory.scala
index 01a37a4..a914b6c 100644
--- a/src/codechicken/multipart/asm/ASMMixinFactory.scala
+++ b/src/codechicken/multipart/asm/ASMMixinFactory.scala
@@ -59,11 +59,12 @@ class ASMMixinFactory[T](val baseType:Class[T], private val paramTypes:Class[_]*
             case None =>
         }
 
-        def getParents(info:ClassInfo):Seq[ClassInfo] = info.superClass.toSeq.flatMap(i => i +: getParents(i))
-        if(!getParents(cnode).map(_.name).contains(baseType.nodeName))
+        val info = getClassInfo(cnode)
+        def checkParent(info:ClassInfo):Boolean = info.superClass.exists(i => i.name == baseType.nodeName || checkParent(i))
+        if(!checkParent(info))
             throw new IllegalArgumentException("Mixin trait "+s_trait+" must extend "+baseType.nodeName)
 
-        if(isScala(cnode) && isTrait(cnode)) {
+        if(info.isTrait) {
             registerScalaTrait(cnode)
         }
         else {
diff --git a/src/codechicken/multipart/asm/ScalaSignature.scala b/src/codechicken/multipart/asm/ScalaSignature.scala
index 708a1eb..ef2be79 100644
--- a/src/codechicken/multipart/asm/ScalaSignature.scala
+++ b/src/codechicken/multipart/asm/ScalaSignature.scala
@@ -33,8 +33,9 @@ object ScalaSignature
         def isPrivate = hasFlag(0x00000004)
         def isProtected = hasFlag(0x00000008)
         def isAbstract = hasFlag(0x00000080)
-        def isInterface = hasFlag(0x00000800)
+        def isDeferred = hasFlag(0x00000100)//abstract for methods
         def isMethod = hasFlag(0x00000200)
+        def isInterface = hasFlag(0x00000800)
         def isParam = hasFlag(0x00002000)
         def isStatic = hasFlag(0x00800000)
         def isTrait = hasFlag(0x02000000)
@@ -47,17 +48,25 @@ object ScalaSignature
         def flags:Int
         def hasFlag(flag:Int) = (flags&flag) != 0
     }
-    
-    case class ClassSymbol(name:String, owner:SymbolRef, flags:Int, info:Int) extends SymbolRef
+
+    trait ClassSymbolRef extends SymbolRef
     {
-        override def toString = "ClassSymbol("+name+","+owner+","+flags.toHexString+","+info+")"
+        def name:String
+        def owner:SymbolRef
+        def flags:Int
+        def info:Int
+
         def full = owner.full+"."+name
-        
+        override def toString = getClass.getName+"("+name+","+owner+","+flags.toHexString+","+info+")"
+
         def info(sig:ScalaSignature):ClassType = sig.evalT(info)
         def jParent(sig:ScalaSignature) = info(sig).parent.jName
         def jInterfaces(sig:ScalaSignature) = info(sig).interfaces.map(_.jName)
     }
     
+    case class ClassSymbol(name:String, owner:SymbolRef, flags:Int, info:Int) extends ClassSymbolRef
+    case class ObjectSymbol(name:String, owner:SymbolRef, flags:Int, info:Int) extends ClassSymbolRef
+
     case class MethodSymbol(name:String, owner:SymbolRef, flags:Int, info:Int) extends SymbolRef
     {
         override def toString = "MethodSymbol("+name+","+owner+","+flags.toHexString+","+info+")"
@@ -102,13 +111,15 @@ object ScalaSignature
     
     trait TypeRef
     {
-        def name:String
+        def sym:SymbolRef
+        def name = sym.full
+
         def jName = name.replace('.', '/') match {
-            case "scala/AnyRef" => "java/lang/Object"
+            case "scala/AnyRef" | "scala/Any" => "java/lang/Object"
             case s => s
         }
-        def jDesc:String = name match
-        {
+
+        def jDesc = name match {
             case "scala.Array" => null
             case "scala.Long" => "J"
             case "scala.Int" => "I"
@@ -128,36 +139,30 @@ object ScalaSignature
         
         def returnType = this
         
-        def name = sym.full
-        
-        override def jDesc = name match
-        {
+        override def jDesc = name match {
             case "scala.Array" => "["+typArgs(0).jDesc
             case _ => super.jDesc
         }
     }
     
     case class ThisType(sym:SymbolRef) extends TypeRef
-    {
-        def name = sym.full
-    }
-    
+
     case class SingleType(owner:TypeRef, sym:SymbolRef) extends TypeRef
     {
-        def name = sym.full
+        override def jName = super.jName+"$"
     }
-    
+
     case object NoType extends TypeRef
     {
-        def name = "<no type>"
+        def sym = null
+        override def name = "<no type>"
     }
     
     class SigEntry(val start:Int, val bytes:Bytes)
     {
         def id = bytes.bytes(start)
         
-        def delete()
-        {
+        def delete() {
             bytes.bytes(start) = 3
         }
     }
@@ -168,8 +173,7 @@ case class ScalaSignature(major:Int, minor:Int, table:Array[SigEntry], bytes:Byt
         val e = table(i)
         val bc = e.bytes
         val bcr = bc:ByteCodeReader
-        return e.id match
-        {
+        e.id match {
             case 1|2 => bcr.readString(bc.len)
             case 3 => NoSymbol.full
             case 9|10 =>
@@ -182,22 +186,21 @@ case class ScalaSignature(major:Int, minor:Int, table:Array[SigEntry], bytes:Byt
     
     def evalT[T](i:Int):T = eval(i).asInstanceOf[T]
     
-    def evalList[T](bcr:ByteCodeReader) =
-    {
+    def evalList[T](bcr:ByteCodeReader) = {
         var l = MList[T]()
         while(bcr.more)
             l+=evalT(bcr.readNat)
         l.toList
     }
     
-    def eval(i:Int):Any = {//we only parse the ones we actually care about
+    def eval(i:Int):Any = {//only parse the ones that matter for this project
         val e = table(i)
         val bc = e.bytes
         val bcr = bc:ByteCodeReader
-        return e.id match
-        {
+        e.id match {
             case 1|2 => evalS(i)
             case 6 => ClassSymbol(evalS(bcr.readNat), evalT(bcr.readNat), bcr.readNat, bcr.readNat)
+            case 7 => ObjectSymbol(evalS(bcr.readNat), evalT(bcr.readNat), bcr.readNat, bcr.readNat)
             case 8 => MethodSymbol(evalS(bcr.readNat), evalT(bcr.readNat), bcr.readNat, bcr.readNat)
             case 9|10 => ExternalSymbol(evalS(i))
             case 11|12 => NoType //12 is actually NoPrefixType (no lower bound)
@@ -206,7 +209,7 @@ case class ScalaSignature(major:Int, minor:Int, table:Array[SigEntry], bytes:Byt
             case 16 => TypeRefType(evalT(bcr.readNat), evalT(bcr.readNat), evalList(bcr))
             case 19 => ClassType(evalT(bcr.readNat), evalList(bcr))
             case 20 => MethodType(evalT(bcr.readNat), evalList(bcr))
-            case 21|48 => ParameterlessType(evalT(bcr.readNat))//48 is actually a bounded super type, but it should work fine for our purposes
+            case 21|48 => ParameterlessType(evalT(bcr.readNat))//48 is actually a bounded super type, but it should work fine for this project
             case _ => NoSymbol
         }
     }
@@ -222,37 +225,32 @@ class ByteCodeReader(val bc:Bytes)
     
     def readByte = advance(1)(bc.bytes(pos))
     
-    def readNat:Int =
-    {
+    def readNat = {
         var r = 0
         var b = 0
-        do
-        {
+        do {
             b = readByte
             r = r<<7|b&0x7F
         }
         while((b&0x80) != 0)
-        return r
+        r
     }
     
-    def advance[A](len:Int)(r:A):A =
-    {
+    def advance[A](len:Int)(r:A) = {
         if(pos+len > bc.pos+bc.len)
             throw new IllegalArgumentException("Ran off the end of bytecode")
         pos+=len
-        return r
+        r
     }
     
-    def readEntry =
-    {
+    def readEntry = {
         val p = pos
-        val tpe:Int = readByte
+        val tpe = readByte
         val len = readNat
         advance(len)(new SigEntry(p, new Bytes(bc.bytes, pos, len)))
     }
     
-    def readSig =
-    {
+    def readSig = {
         val major = readByte
         val minor = readByte
         val table = new Array[SigEntry](readNat)
@@ -264,22 +262,19 @@ class ByteCodeReader(val bc:Bytes)
 
 object ScalaSigReader
 {
-    def decode(s:String):Array[Byte] =
-    {
+    def decode(s:String) = {
         val bytes = s.getBytes
-        return bytes take ByteCodecs.decode(bytes)
+        bytes take ByteCodecs.decode(bytes)
     }
     
-    def encode(b:Array[Byte]):String = 
-    {
+    def encode(b:Array[Byte]) = {
         val bytes = ByteCodecs.encode8to7(b)
         var i = 0
-        while(i < bytes.length)
-        {
+        while(i < bytes.length) {
             bytes(i) = ((bytes(i)+1)&0x7F).toByte
             i+=1
         }
-        return new String(bytes.take(bytes.length-1), "UTF-8")
+        new String(bytes.take(bytes.length-1), "UTF-8")
     }
     
     def read(ann:AnnotationNode):ScalaSignature = Bytes(decode(ann.values.get(1).asInstanceOf[String])).readSig
@@ -294,8 +289,7 @@ object ScalaSigReader
 
 class ScalaSigSideTransformer
 {
-    def transform(ann:AnnotationNode, cnode:ClassNode, removedFields:JList[FieldNode], removedMethods:JList[MethodNode])
-    {
+    def transform(ann:AnnotationNode, cnode:ClassNode, removedFields:JList[FieldNode], removedMethods:JList[MethodNode]) {
         if(removedFields.isEmpty && removedMethods.isEmpty)
             return
         
@@ -303,35 +297,28 @@ class ScalaSigSideTransformer
         val remMethods = removedMethods.asScala.map(f => (f.name, f.desc.replace('$', '/')))
         
         val sig = ScalaSigReader.read(ann)
-        for(i <- 0 until sig.table.length)
-        {
+        for(i <- 0 until sig.table.length) {
             val e = sig.table(i)
-            if(e.id == 8)//check and remove
-            {
-                val sym:MethodSymbol = sig.evalT(i)
-                if(sym.isAccessor)
-                {
-                    val fName = if(sym.name.endsWith("_$eq")) sym.name.substring(0, sym.name.length-4) else sym.name
-                    if(remFields.find(t => t._1 == sym.name.trim).nonEmpty)
-                    {
+            if (e.id == 8) {//check and remove
+                val sym: MethodSymbol = sig.evalT(i)
+                if (sym.isAccessor) {
+                    val fName = if (sym.name.endsWith("_$eq")) sym.name.substring(0, sym.name.length - 4) else sym.name
+                    if (remFields.find(t => t._1 == sym.name.trim).nonEmpty) {
                         e.delete()
                         val it = cnode.methods.iterator
-                        while(it.hasNext)
-                        {
+                        while (it.hasNext) {
                             val m = it.next
-                            if(m.name == sym.name && m.desc == sym.jDesc(sig))
+                            if (m.name == sym.name && m.desc == sym.jDesc(sig))
                                 it.remove()
                         }
                     }
                 }
-                else if(sym.isMethod)
-                {
-                    if(remMethods.find(t => t._1 == sym.name && t._2 == sym.jDesc(sig)).nonEmpty)
+                else if (sym.isMethod) {
+                    if (remMethods.find(t => t._1 == sym.name && t._2 == sym.jDesc(sig)).nonEmpty)
                         e.delete()
                 }
-                else//field
-                {
-                    if(remFields.find(t => t._1 == sym.name.trim).nonEmpty)
+                else {//field
+                    if (remFields.find(t => t._1 == sym.name.trim).nonEmpty)
                         e.delete()
                 }
             }
diff --git a/src/codechicken/multipart/nei/NEI_MicroblockConfig.java b/src/codechicken/multipart/nei/NEI_MicroblockConfig.java
index 60169da..89b5f27 100644
--- a/src/codechicken/multipart/nei/NEI_MicroblockConfig.java
+++ b/src/codechicken/multipart/nei/NEI_MicroblockConfig.java
@@ -2,7 +2,7 @@ package codechicken.multipart.nei;
 
 import codechicken.lib.inventory.InventoryUtils;
 import codechicken.microblock.MicroblockClass;
-import codechicken.microblock.MicroblockClassRegistry;
+import codechicken.microblock.CommonMicroClass;
 import codechicken.microblock.handler.MicroblockProxy;
 import codechicken.nei.ItemStackMap;
 import codechicken.nei.api.API;
@@ -15,7 +15,7 @@ public class NEI_MicroblockConfig implements IConfigureNEI
 {
     @Override
     public void loadConfig() {
-        MicroblockClass[] microClasses = MicroblockClassRegistry.classes();
+        MicroblockClass[] microClasses = CommonMicroClass.classes();
         for (int c = 0; c < microClasses.length; c++) {
             MicroblockClass mcrClass = microClasses[c];
             if (mcrClass == null)