Edit (previous post contents not helpful):
Formulae: Firmware/Kinematics.cpp at master · MaslowCNC/Firmware · GitHub
a simple search on the forum will get you what you seek:
gearbox info see post 7 for gear ratios. More here. you can change them if you want. the encoder is on the motor shaft, not on the gearbox shaft, so it’s counts wont change if you change the gearing. The sprocket is a 9 tooth 1/4" link.
curious: why shouldn’t community members have had to go into the gearbox to get information? The gearbox came with the motor as an assembly item. It was not designed for this application, it is an off-the-shelf item available in mass quantity (or at least it used to be). The manufacturer should have the info you seek. It isn’t like it is proprietary information. It makes sense now that you bring it up, that this might be useful to archive. But “c’mon man,” your claim of lack of open source isn’t really valid because the “community” didn’t cough up facts fast enough for you when you could have looked them up with a little google-fu.