Customizable long GoPro screw knob

Simple longer GoPro screw knob, designed for use with my Quanum Trifecta Xiaomi Yi holder: http://www.thingiverse.com/thing:1563684

Fit the screw using heat or increase the size in the OpenSCAD file.

[Watch a time-lapse recording of the print process](https://www.youtube.com/watch?v=sbXLciVxu5A)