About this 3D model

I designed these back in 2012 https://www.youtube.com/watch?v=uA80aen1S1Q and have had a request to release them. Here they are :) http://xnaron.com/2012/08/04/laser-tube-hanger-for-50w-ebay-laser/ Credits for knob: Parametric knob generator by Gian Pablo Villamil May 2011