Designed to replace a store-bought handle bar mount that could support a device w/a 1/4"-20 threaded nut. After buying 2 of them and having both of them break on me, I decided it would be fun to recreate the mount but make a few improvements, which include: Print all the parts once. Use this info as a guideline: Additionally, I glued a small round piece of rubber to the top of the smaller thumbscrew to help in keeping things from moving.