Backhoe FRAME

Frame, cardan and gearbox for [backhoe project](https://www.thingiverse.com/thing:5539326)
Full project video
https://youtu.be/jnOol_vKNFE

*Materials*
* a few m3 length 10, 16, 20mm, m3 nuts
* a few 2.5 crews length 8, 12mm
* mg996r servo *continues* or compatible
* bearings 608zz x2

Tinkercad project https://www.tinkercad.com/things/lgkRAPYxp5y-backhoe-frame-r1

*Recomendations and known issues*
* Three versions of gears with fuse thickness 1.25, 1.50 and 1.75mm. The first one is too weak (the tractor does not drive over the obstacle with its rear wheels), the last one is too strong (the protection does not work, the 996 servo is not powerful enough). Choose which one you like best.