Using version 1.7.9.

Put cobble & planks into regular calculator to make reinforced stone. Try to get the stone out, and this crash happens.

http://hastebin.com/jagimexuyu.1c

did this happen straight away or did it work for a while first?
what java version are you using?

Try the new version :)

Gonna test it tonight when I get home. Thank you so much for your quick response!

:D

Well that fixed the crash but the crafting weirdness is back with the calculator

Really?? I have no idea then.

has it improved or changed in any way?

i'll open the other issue again

I asked a few people for any ideas.. Ganymede I think is taking a peek at it