Using Diamond Drill , 64 mining pipe, OV scanner and 3 batbox powering a miner.
The moment the miner placed the first pipe, the crash happened. The world is no longer useable.
Display Spoiler
java.lang.ClassCastException: ic2.common.BlockMiningPipe cannot be cast to vb
at qo.b(RenderBlocks.java:127)
at bv.a(WorldRenderer.java:153)
at i.a(RenderGlobal.java:1125)
at iw.a(EntityRenderer.java:780)
at iw.b(EntityRenderer.java:654)
at EntityRendererProxy.b(EntityRendererProxy.java:15)
at net.minecraft.client.Minecraft.run(SourceFile:689)
at java.lang.Thread.run(Unknown Source)