DIY Robotic Arm with SG90/MG90 and compatible servo
https://homegenie.it/mini/1.2/examples/mr-robot

Version 2.0 - Revision 4 (Structural Stability Overhaul)
- New **Direct 20T Spline-mount Brackets** for base, elbow, and wrist motors:
    - Eliminates "wobbling" and maximizes stability by allowing direct servo shaft connection (no more horn variations).
    - Significant structural simplification: **Fewer parts (from 9 to 5)** and reduction of **up to 7 screws** in the arm assembly.
    - New precision-fit brackets are supplied in a separate file (0.12mm layer height recommended) while legacy brackets are retained in the main file.

Version 2.0 - Revision 3
- Adapted gripper and brackets to work also with MF90 servos
- Fixed gripper width to match the arm's body width

Version 2.0 - Revision 2
- Added horn base cover with screws to tighten and secure the horn base
- Improved gripper for smoother movements

Version 2.0 - Revision 1
- Fixed STL models scale
- Improved gripper housing to prevent gears friction and servo motor overload
- Added optional FPV camera mount for ESP32-CAM

Version 1.0 - Revision 1 (initial release)
- 3 axis Robotic Arm with micro servo (e.g. SG90/MG90) 

