|Re: More progress|
Message #10 Posted by Dave F on 24 Nov 2011, 9:08 p.m.,
in response to message #9 by Michael de Estrada
I'm glad to hear that since, as I mentioned, I super-glued the shaft of the motor into the vinyl insulation sleeve. I will say that I was not comfortable with having the shaft slip in the sleeve, since it seemed a very unreliable setup. I only repeated it because I have seen it here, but the manual (which I have now that I found my CD copy) certainly doesn't mention a clutch. However, there is an article in the articles forum that may need to be corrected.
Then, would it be correct that the roller is supposed to slip over a restrained or jammed card, at the right cam setting? That would explain how adjusting the eccentric cam could affect the motor current when holding the card so it can't roll through.
If the current is too high, and the card is going through slowly and slightly jerkily, then I am guessing there's too much friction in the system, and too much torque on the motor. Although I had believed my tubing on the roller is not too thick, perhaps I need to find a smaller caliber solution.
Does that line of reasoning sound reasonable? Does anybody have suggestion of a specific size of silicone tubing or O-ring that is known to work reliably?
Edited: 24 Nov 2011, 9:11 p.m.