I'm working on a wrist wearable, and I would like it to have a scroll wheel similar to the one on the Sansa e200 mp3 player:
I think I can use a rotary encoder like those you would find in a mouse. This is very close to what I'm looking for:
However, those all appear to be the same. I'm going to be mounting it on a PCB and it would be nice to choose the best one from a few different options.
Most of the encoders I've found have long metal shafts. Is it generally possible to remove those and replace them with something flat?