This may be my fault entirely, I haven't kept up with the RF energy system. I just got techguns, and when I realized it needed an RF mod I put on buildcraft which I'm familiar with. But the pipes are not connecting to techgun machines like they're supposed to. I've tried buildcraft 7.99.14 and 7.99.21. Using Techguns 188.8.131.52_1 . Appreciate any help on what I might be doing wrong!