Theres a few new criteria that ussm-3 aims to achieve:
- Manufactured only using simple shop tools, PLA 3d printers, and a standard bed size (24'x 24') laser cutter.
- Pulling force of around 600N
In order to be laser cuttable, acryllic and delrin were the main two materials considered. Delrin was the go to option to avoid shattering.
To actuate, the following adapted gantry system: [gantry](https://gitlab.cba.mit.edu/jakeread/rctgantries) along with this beam design: [beam](https://gitlab.cba.mit.edu/jakeread/rctgantries/tree/master/beams) for rigidity.
