It’s (a little) easier when angles are not discretely jumping. For a 2d person it would also be hard to get the idea of a drill bit from few random cross sectio

It’s (a little) easier when angles are not discretely jumping. For a 2d person it would also be hard to get the idea of a drill bit from few random cross sections. Btw, this drill bit example (basically a twisted ribbon) made me think that we could represent not only straight sections, but also rotating ones, to get a better feel of what goes on.