Jay Jaeger cube1 at charter.net
Wed Dec 2 11:54:03 CST 2015

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

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