Hey there Vazkii, Aidancbrady said that this Mekanism issue [https://github.com/mekanism/Mekanism/issues/2151] that I posted to him was known about for a while on his side and has been known as a bug on your side. As he said there, he told me to report it to you and ask if you've made any progress with it. So here's the crash reports I gave him and he said to report back to him if you need his assistance with squashing that bug. Thanks. Since I'd very much like to be able to use the artifice craft-on upgrades to enchant some of his gear if I could eventually. :)

Kaboom when trying to put obsidian tool into crafting bench in applied energistics screen.
http://pastebin.com/YJUwLjv0

Kaboom when trying to craft using tinkers bench.
http://pastebin.com/QfjFFF1c

... well then...