Bolting together the arm
The arm sandwich of 3mm aluminum sheets with 3D-printed ABS in the middle is held together by 34 M4 countersunk stainless steel bolts and sleeve nuts.
There are different length bolts used throughout the arm:
- 23 x 50mm (for the main part)
- 5 x 75mm (80mm cut to length) for the stick hub
- 4 x 80mm for the stick mount
- 2 x 55mm for the stick angle sensor mount
Ebay links:
- Bolts:
http://www.ebay.com/itm/231787670429
- Sleeve nuts:
http://www.ebay.com/itm/191771467782
