The magnets alone are extremely hard to remove once they are placed on a metal object. I designed these adjustable holders to give you a little more grip making it easier to remove them. They are adjustable and designed to hold down objects on a Laser Engraver Honeycomb Bed. They will hold down material that's 1.5mm-6mm thick.
I used ASA but I'm sure any filament would work fine. I used 45% Infill. I printed these flat side down with no supports. These are press fit tolerances for the magnets so your 3D printer needs to be tuned correctly. The threads will also require your printer to be tuned correctly. I've included 3 different files for the Magnet body, 019 being the smallest thread gap that worked for me and 034 being the largest. One of these files should work for you.
Link to Magnets
DIYMAG 8 Pcs Neodymium Round Base Cup Magnet, 110LBS Strong Rare Earth Magnets with Heavy Duty Countersunk Hole,Stainless Screws,Iron Sheet for Refrigerator Magnets,Office,etc-Dia 1.26 inch-Pack of 8 https://a.co/d/0fmcHR6y
The author marked this model as their own original creation.