This is a make of the original by MariusHornberger on Thingiverse: https://www.thingiverse.com/thing:4902834. I remixed the roll mount to fit a 1/4-20 UNC camera mount used on a lot of the Logitech web cameras. I used a 1/4-20 UNC square nut and 1/2" long set screw to mount the web cam. This mount is the most flexible well made model i have found. Thanks to MariusHornberger for his hard work on this model.