Re: Card Reader Repair Message #4 Posted by Randy on 23 July 2012, 8:03 a.m., in response to message #1 by aj04062
Tubing is probably the wrong size, 1/4" od, 1/8" id is too large. Should be 7/32" od, 3/32" id so it stretches over the hub and gives the proper od. Like this shot from the archives:
Finding a good piece of tubing that has perfect concentric form is difficult. I've bought many pieces of tubing over the years and have never found "the perfect fit". Even went so far as to buy a $40 length of medical grade silicone, it was okay but no better than the $3 piece from the hobby store. Even the piece in the above photo is not concentric, look at the 1/4" metal section of the wheel, top and bottom. The tubing is not even with the edge, as it should be.
All that said, as expected, I've found rings to be far more consistent.
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