This is a simple sign slider with three integrated 3x6mm Magnets. Those Magnets are modelled right into the part, you need to place it in the parts mid-print. It is important to get the magnet orientation correct for it to work.
I printed with .2mm layer-height and grinded it down with 300 grid to improve the sliding characteristics.
in the slicer watch out for the layer you need so put in the magnet.
If you really like this thing I would appreciate a small tip.
black for slider, white for base