As already announced somewhere in the forum the freecad.gears workbench (aka FCGear) is now supported by the epic-megagrant  project. This gives me the opportunity to work on the project (part-time) until January 2022.
The work during the megagrant-sponsorship will include several tasks like:
- improving the gears (more parameter, better documentation)
- working on issues 
- adding a possibility to easily assembly the gears
The work will happen within the megagrant-branch  and will result in a new version at the beginning of 2022. Feel free to add issues or discuss additional ideas here in the forum.
 https://github.com/looooo/freecad.gears ... /megagrant