>>6464716An anon posted this a few threads ago:
dropbox.com/s/w1itdskppeij5hj/Mech%20Leg%20instructions.pdf?dl=0Pieces required for it are in pic related. Blue circles are what you need to get external to the set, either the set doesnt have enough or none at all. Green is corrections, the guy who made the instructions misread the shades of grey and one piece, but he was working from a build video, so he shouldn't be blamed.
I made some additional mods which I'll get some pictures of up in a little bit, or maybe tomorrow. They make it a little nicer, IMO.
