About this 3D model
Attention, there is a newer and improved version which I recommend to print - new version - upgrade 2.0: https://makerworld.com/en/models/151419#profileId-165288 This is a remix. The branding has been removed, the holes are designed for 4x2 and 3x2 magnets. Unessential and useless holes have been removed. Best to print with a 0.1 layer height in ABS, 10% infill, 3 walls, and of course with support.