3D HP67 Parts Availability?

[hibiki]

I have not done any HP calculator parts yet in my 3D printer (Ender 3, well I made an abacus Soroban, 17 digits). I printed only a reel fishing part that is plastic. I use the OpenScad to draw parts and it is free and not hard to learn drawing parts. In fact, you are not drawing, but programming commands to make geometrical forms and glueing them ou cutting from another piece to generate what you want.

For gears, coils, helix, pulleys, reels, etc there are a lot of file drawings alreadybavailable in Thingsverse site, as the drawings are parametric, you can easily modify sizes, number of teeth and other features.