I've had several versions of magnetic fidget sliders but this has been the best. Each half has 2 rows of 3 magnets. So it can snap in all directions. Magnets are internal and there is a pause on the 3mf file to insert the magnets. 12x 6x3 magnets are required.

Internal magnets reduce the risk of falling out and the precision needed for the press fit hole. Holes can be loose fit and they do fine. No glue needed! magnets snap to the bedplate and do not lift during printing.

If hole is too tight to insert magnets adjust the X-Y Hole compensation under Quality to adjust.

Works best with a textured plate to reduce surface friction between the halves.