(update: ̶̶G̶o̶o̶g̶l̶e̶ ̶d̶o̶c̶ ̶ -> less ponderous 'ible)
Handwheel drive was a recent-ish simplification of a generalization of the slide mechanism used in #Minamil: a minimal CNC mill. After talking about but not posting sufficient info to make that reproducible for [some number of] months, I started this project when I had enough [i.e. too much] written about building a slide with handwheel drive, leaving stepper drive as a to-do.
paperclip needs tweaks
backlash adjuster (#Minamil demonstrates usefully small backlash)
You could probably figure out much of that yourself, but expecting anyone to pull the spring out of thin air seemed unreasonable.
Yay (for me -- I struggle with the writing-up part of any project -- on the rare occasion that I actually undertake to do so) for a milestone.