About this 3D model

The idea is not mine, I've seen it somewhere, but couldn't find it and decided to design my own version. You just slide it onto your right x-axis idler of Prusa i3 MK3s printer.Easy to deattach. Here is a video how I've used it with Yi 4k Action Camera to make timelapses:youtube.com/watch?v=IO0eZaPh_pM