Satisfying spur gears

Originaly just test of some pinions, rack and spur gears.
But i have found that it is quite satisfying so you can play with it as well:)

There is two versions of rack, one with some stopper on both ends, second one is without stoppers, so you can remove and insert it as you need.

Also there is two version of spur gears, with and without spinning indicators (black dots on top of spur gears).

If you print top part semi-transparent you can observe that gears spinning.

Printed with PLA without any supports.

BambuLab X1C
0.2
4 walls (wall loops)
20% infill
PLA+
no supports