Modular 1:5 planetary gear

Wanted to try to model a planetary gear that is modular, in the way that you can stack multiple together to achieve higher reduction ratios. A single gear has a reduction ratio of 1:5 between the sun gear and the carrier.

However, my printer died so I did not get to test it. So if someone loves to print stuff as much as I enjoy to model, let me know how the model works :)

Print and build instructions:
For each gearbox you need
- 1*N-1 Spacer (N=1, 0 spacers. N=2, 1 spacer, N=3, 2 spacers)
- 4*N-4 casing pin (N=1: 0 pins. N=2, 4 pins. N=3, 8 pins)
- 2 casing cover (2 regardless of N)
- 3*N planet gear center pin (N=1: 3 pins. N=2: 6 pins. N=3: 9 pins)
- 1 Sun gear center pin (1 pin regardless of N)
- 1*N carrier (N=1, 1 carrier. N=2, 2 carriers. N=3, 3 carriers)
- 1*N casing with ring gear (N=1: 1 casing. N=2, 2 casings. N=3, 3 casings)
- 1*N sun gear (N=1, 1 gear. N=2, 2 gears. N=3, 3 gears)
- 3*N Planet gear (N=1, 3 gears. N=2, 6 gears. N=3, 9 gears)
(where N is the