Posted by big_toast 8 hours ago
The easiest approach would probably be to add a second optical sensor and do some math to calculate the twist rate.
https://en.wikipedia.org/wiki/SpaceOrb_360 as one example.
The github[0] for it is kinda cool. Uses the 'CERN Open Hardware Licence Version 2 - Strongly Reciprocal'. The assembly instructions[1] give a bit of a hands on feel.
They had some more details on a reddit post[2] it looks like.
[0]:https://github.com/ploopyco/aplus-trackball
[1]:https://github.com/ploopyco/aplus-trackball/blob/main/docs/a...
[2]:https://www.reddit.com/r/ploopy/comments/1vo4y4r/this_is_the...
https://www.kensington.com/p/products/electronic-control-sol...
Even the wrist rest, which I've never seen on another trackball, seems to have been copied from here. Anybody tested out both?
They really need to find a better name than "Ploopy" though.
The name reminded me of Kooky Plops, the fictional band from the brilliant animated skit[1] by David Firth (of Salad Fingers fame) about the state of pop music in 2009.
However the "ergonomic" design is extremely uncomfortable for me and caused hand pain. I let it ride for a few weeks hoping I'd get accustomed, the pain got better but didn't go away. Also the far-left and far-right mouse buttons are superfluous and detract from the core experience.
Please do a symmetrical version and maybe throw in a scroll wheel with steps/clicks, I'd happily buy another.
"The original Adept had six buttons. However, ever since we released the original Adept, the PCBs have contained two unpopulated lands for additional switches. Our intention was always to eventually move to eight buttons. The A+ finally lives up to the ambition that we set for ourselves back in 2023."
So they designed it to have 8 switches from the start - but then hid 2 of them so they'd have a "new version" once the sales of the old one slowed down. I don't know if that's genius or sad capitalism...
I love all I/O devices..
I think the main difference from the Ploopy Adept is they added two knob buttons?