This is a base for miniature figures. The width, depth, thickness (height), and slope of the sides are customizable. Shape can be square/rectangular, octagonal, or circle/lozenge. One or two slots are optional. The top can be indented. A raised nameplate can be added.
100 microns if using sloping sides
If you have trouble removing this from the print bed, try inverting the model.
Some of the bases that can be made from this model.
In OpenSCAD, the base is simply two cones hulled together.