Useless Box - Modular - 9g servo

This is a modular, Useless box. You can print 1 or 2 modules versions.

Arduino Nano can handle 3 of these modules, so I might add another one later.

Parts (must have):
- SG90 servo 180 degrees
- Toggle switche
- 4xAA case
- Power switch
- Arduino Nano or similar

Links:
Most servos from aliexpress don't work. Here is one that does work: https://www.aliexpress.com/item/1005008342727306.html
9g Servo comes with different arm sizes, so there are versions for tight or less tight arms. This one uses the v2_less_tight arm.
Useless switch: https://www.aliexpress.com/item/1005007315310112.html
Power switch: https://www.aliexpress.com/item/32873386670.html?
AA case: https://www.aliexpress.com/item/4001242439752.html

Parts (optional)
Screws:
All screws inside are M2 screws of minimum 8mm length
All screws outside are M3 of minimum 5mm length

Bearing size: 688zz
Optional. Use `servo_arm_without_bearing_v2_less_tight` for without bearing.
Link: https://www.aliexpress.com/item/1005006309028028