About this 3D model
I have made some magnets for for Friges/whiteboards in the same style as my M3-M6 Thumbscrews They are designed to have a good grip and to be easily printable. There are 3 different sizes, and all used 3x8mm disc magnets. On my printer the magnets are a thight pressfit, but depending on you calibration, you might need a dab of glue to hold it in place. No supports are needed to print. Check out my other models here