Modular Squat Rack Mount

I wanted a way to hold my phone on my rack while working out, and designed a quick phone mount for it. After iterating on it a bit, I decided to make it a modular system after I wanted to make a cupholder as well.This is designed only for a 3x3 (designed to 75mmx75mm) rack with 1" holes (tested on REP PR-5000). I could maybe make a 2x3, or 5/8" hole version if someone wanted. I would think the 5/8" holes version would just work as is though.I used some spare 1" bolts I had, though you could use a hitch pin or something as well to hold it in place.I also uploaded the joining piece as a STEP, so feel free to make anything you want and slap that puppy on there.