im trying to figure out the most secure and easiest way to mount a 40x40 onto a Cbeam rail. they are running parallel. right now just drilling thought the 40x40 into Tnuts on the cbeam seems like the best idea if you have a better idea please share.
I screwed 2 2080 vslot together and used the 3d printed part from the resources section to keep them lined up. It worked great.