On 12/2/2015 9:50 AM, Rod Smallwood wrote: > Thanks Jay > Yes there's an optical encoder on the other end of the motor. > Depending on the pressure of the roller on the cassette drive wheel it > will deform more or less. > That effectivley changes the diameter and hence the speed. So you need > to set it. > > Its a DC motor so you can control the speed. > Just count the encoder pulses over time and you know what the speed is. > > Did you glue your pressure hose on or was a push fit enough?
I think I may have glued them, but I am not sure - I do recall that the fit was pretty tight. > > Regards > > Rod > > > > On 02/12/2015 15:31, Jay Jaeger wrote: >> I used orange over black tubing designed for carrying water under >> pressure from Home Depot (here in the US), and then sanded it down to a >> reasonable O.D. size (IIRC). Worked great. >> >> I don't know that the diameter is absolutely critical - I think it has >> some kind of speed encoding. >> >> On 12/2/2015 6:40 AM, Rod Smallwood wrote: >>> Dear List >>> While the silk screeners process the panels I have a >>> couple of days for a little project >>> I have a TU-58 and yes it had gooey drive wheels. >>> Now it no longer has that problem but I have black and gooey fingers.!!! >>> >>> I know this issue has been addressed before. >>> So I think somebody must know where I can get the right tubing to >>> replace the degraded stuff. >>> The drive hub is 0.42" and the rubber bit was 0.62" o/d >>> A UK source would be nice, >>> >>> Rod >>> > >
