OpenBuilds Cube Connector they sell for US$4.77
Aliexpress clone US$112.50 for 50 = US$2.25 ea, = NZ$3.36 cost = NZ$ retail?
Milled from 20mm solid block
Block/bar at US$5 per KG + shipping
- 20mm x 20mm 6000 x 1m aluminium = 1.08kg, = US$2.24 each, more bought in small qtys
- 0.0216kg = 21.6g per 20mm cube (shipping weight less after machining)
- assume lose 3m per cut, a 1m bar yields 1000/23 = 43 units
- assume US$10per kg landed = US$0.23 per cube
- Machining cost?
- Plunge x 3 larger diameter
- Plunge x 3 mounting hole M6 for 2020
- Additional plunge x 3 for stepping bolt fixing head
- Edge rounding
- 40mm x 40mm x 1m = 4.32kg = 0.17kg per 40mm cube