My Eureka Mignon Grinder has a (printed) base with 15° tilt to reduce it's retention, but my dosing cup kept sliding out of the holder often.
This holder has a long neck to position it near the exit chute of the grinder, adding a negative tilt to the holder so the dosing cup doesn't slide out of it during grind.
It also features an indent so you can press on the cup to start the grind.
The model is split into multiple parts so it can be printed without any supports and glued together afterwards. Two little dimples are added for a little more grip on the cup if necessary.
The author remixed this model.
I changed the “arms” of the holder, using only the base of the original model to attach it to the grinder