The author remixed this model.
The original holder that I remixed (https://www.printables.com/model/1148045-buddy-3d-camera-mount-for-mk4s), interfered with the bearings on the left side of the MK4S, so I decided to make a 3030 aluminium mount version, where I combined different ideas: I replaced the holding system with Electronsmtih's 3030 Mount and added the Holder for the Buddy3D camera by chipmen. Then I wanted to make it more versatile, and added a gridfinity holder, just in case it is useful for somebody (Gridfinity: https://creativecommons.org/licenses/by-nc-sa/4.0/ - Gridfinity designed by Zack Freedman)