3d print HP41C/V plastic shell and keys?

[Craig Bladow]

Also what CAD tool?

The NP-25 keyboard key legends were not very well defined when printed with a 0.4 mm nozzle. A resin printer or a smaller nozzle (0.2 mm was recommended ) should be able to do a better job.

Some 3D FDM machines have the capability to switch between filaments on the fly which would allow for high contrast, long lasting key legends as HP produced with their 'double shot' keys.