Feedback wk4

1. define the limitations of the plan:
- limitations in size according to material available (or other? easy handlig maybe?
- limitations in extra thickness to approximate a round shape to what is reasonable
- limitations in shape according to what is possible with milling (drill sizes, angles etc),
- limitations to the resin shell minimum edge radius

within a more narrow context, limitations or boundaries can more easy be found.

2. make an action plan of what you expect to be able to deal with.
- prototyping
- structural calculations