Print it and see if you can move all levers!

Simple mechanism with three spheres of different sizes with lever that is slightly smaller than the hollowed out room inside the box.

There is a text next to the lever letting you know the tolerance between the main body and the mechanism.

Available tolerances with this device are 0.2, 0.3 and 0.4mm (on each side of the internal sphere)

You can also use this to see what result you get from different speed and layer settings in your slicer.