Rod Smallwood rodsmallwood52 at btinternet.com
Wed Dec 2 09:50:46 CST 2015

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?



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

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