Fix harvester culling

- Make harvester's render box a unit cube
- Expose manually animated speed through getter

src/main/java/com/simibubi/create/content/contraptions/components/actors/HarvesterRenderer.java

@@ -36,7 +36,7 @@ public class HarvesterRenderer extends SafeTileEntityRenderer<HarvesterTileEntit
 		BlockState blockState = te.getBlockState();
 		SuperByteBuffer superBuffer = PartialBufferer.get(AllBlockPartials.HARVESTER_BLADE, blockState);
 		transform(te.getWorld(), blockState.get(HarvesterBlock.HORIZONTAL_FACING), superBuffer,
-				te.manuallyAnimatedSpeed);
+				te.getAnimatedSpeed());
 		superBuffer.light(light)
 				.renderInto(ms, buffer.getBuffer(RenderType.getCutoutMipped()));
 	}

src/main/java/com/simibubi/create/content/contraptions/components/actors/HarvesterTileEntity.java

@@ -3,15 +3,27 @@ package com.simibubi.create.content.contraptions.components.actors;
 import com.simibubi.create.foundation.tileEntity.SyncedTileEntity;
 
 import net.minecraft.tileentity.TileEntityType;
+import net.minecraft.util.math.AxisAlignedBB;
 
 public class HarvesterTileEntity extends SyncedTileEntity {
 
+	private static final AxisAlignedBB RENDER_BOX = new AxisAlignedBB(0, 0, 0, 1, 1, 1);
+
+	// For simulations such as Ponder
+	private float manuallyAnimatedSpeed;
+
 	public HarvesterTileEntity(TileEntityType<? extends HarvesterTileEntity> type) {
 		super(type);
 	}
 
-	// For simulations such as Ponder
-	float manuallyAnimatedSpeed;
+	@Override
+	public AxisAlignedBB getRenderBoundingBox() {
+		return RENDER_BOX.offset(pos);
+	}
+
+	public float getAnimatedSpeed() {
+		return manuallyAnimatedSpeed;
+	}
 
 	public void setAnimatedSpeed(float speed) {
 		manuallyAnimatedSpeed = speed;