Want to make your own ergonomic mouse but don’t know where to start? Why not try [psudoku]’s Kotinos design?
It’s a scaffold-like fingertip shell that uses the internals of an HSK Pro mouse. Each fingertip gets its own little saddle-shaped nook, and things like hand size and paddle surface can all be configured by modifying the OpenSCAD scripts.
[psudoku]’s unit looks to us as though it was maybe made using multi-jet fusion (MJF) 3D printing, but it should be perfectly printable on hobbyist printers, whether resin- or filament-based.
Comfort of the contact surfaces is left up to the end user, but if your print lacks smoothness and sanding isn’t your jam, you might consider a layer of fabric tape to create a velvet-like surface on a 3D print. That’s a trick we’ve kept in mind ever since seeing it put to good use, cushioning the hardware in a DIY steam deck case.
Is the minimalist scaffold approach to a mouse not your style, or does your hand crave something less lightweight but a little more personalized? You might want to craft a truly custom-fitted mouse, for which clay is the way.
I wonder how this approach would stack up for building an ultra-lightweight gaming mouse vs. the usual “ultra-thin plastic eggshell for a body” approach.
This fella optimum on youtube did exactly this. He was able to build a custom designed 22g mouse using very similar techniques to this ergo mouse. Here’s the video of his most polished version: https://www.youtube.com/watch?v=712C0VWQp_Q
interesting. i’m using daily, for more than a year by now, my 9 key mouse: https://happort.org/mouse
paired with https://github.com/kando-menu/kando i’m still need to find more ways to extend it. it uses a https://github.com/jfedor2/rp2040-pmw3360 board and qmk/vial. i can dig my .stl files and the build if someone is interested in making one
Makes me think of this:
https://www.madcatz.com/en/Product/Detail/rat8-plus
I used to use one a long time ago (I think 4?) and the rest for the little finger and thumb were awesome.
Side note: I thought they went out of business, apparently they are back :o