50W Ebay Laser Cutter Tube Hangers

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