Logitech M575 trackball angled bases

thingiverse

I printed and tried this base: https://www.thingiverse.com/thing:5020749 and felt like it raised the trackball too much for me, so I decided to design my own with the following objectives: * Raise the low part of the trackball as little as possible above the tabletop. * Move the anti-rotation features to the "top" of the base where no fingers will normally contact them. * Reduce the time and amount of filament required to print the base. What I ended up with is not beautiful, but it achieves the objectives. The first full base I printed was the 20 degree base, and I decided that was not enough tilt for me, so I printed a 30 degree version, which I like better but is very close to the original base that started me on this saga. My base does raise the low part of the trackball less than https://www.thingiverse.com/thing:5020749 though and seems to fit my hand better. Update 211115: Added a version with a 45 degree tilt where the M575 is rotated 2 degrees around the circular feature in its base to reduce the pressure felt at the base of my thumb. It also adds some 9.8mm diameter, 1mm deep recesses that could be used for anti-slip pads if desired. This is the version I am currently using. Update 220411: Uploaded .step for latest version (45 degree tilt, 2 degree rotation). stls have to be flipped 180 degrees for printing.