ah! that explains how the Enigma rotor step carry mechanism works. I hadn't noticed the cutout in the kerf ring before.
Pocket Enigma pieces are coming together! If you want to see the renderings, check out the OpenSCAD source https://github.com/osresearch/enigma
The Enigma rotors and advance pawls fit better if the bearing plates are installed the right way!
With the addition of some keycaps, it is starting to really look like an Enigma machine.
Turns out that calibration cubes are really important to be sure that screws and shafts are true to size.
Pocket Enigma rotor centering and advance mechanisms work! Now to find or make some tiny springs to apply tension.
Spring from a retractable ballpoint pen sort of works, although rather imprecise and difficult to secure to the shaft.
Made a spring mandrel winder and it is better, although still need a way to secure them.
Ballpoint pen springs work well for the centering device on the pocket enigma. Need to add V-groove to the roller. Also note the fourth stop for a future Naval model.
The Pocket Enigma is ratcheting and carrying! No enciphering yet, still need to wire up the rotors.
The advance mechanism torsion springs are hand wound out of 1.8mm wire on a printed mandrel. They are very bulky and impact the centering arms so I’m still looking for a better solution.
The Enigma has was seems like a somewhat awkward layout. QWERTZ but with L and P on the wrong rows?
The new base plate and more solid bearing blocks work, although I have to revisit the advance pawls again. The springs have come loose and the impact the centering device housing on the plate.
Oh no! The clearance between the Enigma’s input board support columns and the compensator assembly is too tight. Need to either space them further or cut allowances.
I really did not expect this print to work! The lettering could be deeper and there are clearance issues, although the keys do engage the compensator to advance the rotor as designed!
@th for my spacefox I just ordered springs from aliexoress
@th since your time zone is 6 hours ahead of mine, I assume it’s almost done now
@th when you look at a normal keyboard P and L stick out. if you move then to the bottom, the layout is more rectangular fitting better into the box.
You could not write with normal speed anyway because you need to copy the illuminated letter.
@th: QWERTZ is common for German layouts.
Why'd P and L get moved around, I'm not sure, though. But, well, it's a hundred-year-old machine, and keyboard layouts back then were a matter of customs, not standards yet.
Just launched a seven hour print of the Pocket Enigma baseplate merged with the bearing blocks. Good luck little printer!