I made this because my Bora Centipede only came with 4 X cup Brackets and I wanted 2 more for extra support for a cutting platform I made, to cut down sheets of plywood.
Designed to fit standard 2x4 boards on the face
I had to print the X Bracket and the centre pin separate.
I printed the centre pin with a raft and left it on and used methylene chloride to glued both pieces together.