Youtuber "let's print" created a planetary gearbox system with stackable gears. In his Youtube video he said that it works with Nema17 stepper motor as well but his 3d sources on thangs.com didn't include a nema17 mount.
After some reverse engineering to get the right measurements, I have a working nema17 mount for his gearbox system.
Fusion360 and step files are included in case you want to perform any modifications. I used Fusion's user parameters to store the measurements.
Print settings
Parts
Enjoy!
The author hasn't provided the model origin yet.