Quote:
Originally Posted by Type
I didn't think of that. I've heard of people using part of surgical tubing I believe so it can turn, but a gear may work even better.
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We've used surgical tubing before and it works great. Drill and tap hole in the end of the shaft for a screw that comes relatively close to the diameter of the encoder shaft. The hole should be relatively centered but don't worry if it's off slightly. Cut the head off the screw, slap a jam nut of that sucker and Loctite it in place. Then attach the surgical tubing to both your screw and encoder and use zip-ties to clamp it on. You want to use as short a run of tubing as possible to eliminate any concerns for losing ticks to the torsion of the tubing, but you don't necessarily want the screw to butt up against the encoder shaft, since then concentricity DOES become a concern. Shoot for 1/4", maybe 1/2" gap.
This worked well for us. If you want to mount the encoder directly to the shaft, I have a suggestion for that too, but it will require me to break out my crappy paint skills. Just let me know if you're interested!