Hermes 3000 Typewriter (Boxy case) platen knobs

The Hermes 3000 Platen knob(s) have the following features --


Made to gently but securely press on (but please see warnings below and install procedure).
Designed for the Hermes 3000 second version, which is the metal boxy case design. I think it might also fit the plastic v3 case model, but I'm not sure.

Two versions currently available --

Indented end (pictured) - which is more original looking but a little trickier to print
Flat end - easy print and takes on your bed texture.


Both the left and right knob are included! Note that they are different.


3D Printing the parts
I print with a 0.4mm nozzle, using Bambu Labs PLA “Tough” filament with 0.20mm standard extrusion. I have found that 2 walls and 15% grid infill is plenty strong enough for this. So, pretty much default settings for most printers will work. I would avoid any filament that is brittle. Your mileage may vary, but I would expect most standard PLA or PLA+ to be suitable. This is ass