I have an idea that involves using a mouse wheel encoder, but I can't seem to find any info on them. Does anyone know where you can get hold of mouse wheel encoders, including the wheel itself?
Something like these:
I've been searching all evening but so far I've only been able to find info on the rotary encoder part, and not how the wheel is held in place.
I suppose i could break into some old mice to see a few ways of doing it, but I'd rather see some actual drawings and technical info if possible...