trackball_module VS aball

alternatively, Ploopy Nano (no buttons) or Meishi Trackball

I really like the trackball module by aki27.

But brickbots did the hardwork on this one https://github.com/brickbots/aball

I did a similar thing with the aball. My extremely barebones version of it was small enough to fit between the thumb cluster and palm rest, so I was able to keep my right thumb keys and not lose any stability. I used that setup for a few months until I eventually built myself a Charybdis Nano.

Qmk trackball based on aball project, but with left and right mouse buttons and 3d printed case.

Brickbots' aball also would look nice to a Lily58, specially if you try to make the cases match.

Yeah, I’m making myself one of these at the moment, all trackball with no frills, which I would have suggested but no buttons. Where are you based? Do you have someone who could help you build something like either of these? I’m in the UK in London and could happily make some of the parts for you but if you have someone local they might be able to make whatever modifications would make it work best for you.

Along the same line there's also the aball.

I use the aball. I built the most minimal implementation of it possible: https://imgur.com/a/HiJgRkw

That makes sense. Would it be any easier to try to convert something like an aball that uses a pro micro style controller? Could you just drop in a nice!nano?

If you find a good split without a pointing device and you have q 3D-printer, the aball is for you.