Prusa MK4S Planetary Visualizer

The MK4S Planetary Visualizer is made to work with the following model:

https://www.printables.com/model/1141642-core-one-mk4mk4s-nextruder-visualizer-adaptor

The Sun gear (center gear), require a 3mm thick / 6mm diameter magnet so it couples with the magnet in the above model. (magnet polarity is important - they need to attract one another.