Re: [APML] Stepper motor speed controller?

[steve banbury <banburys@sonic.net>]

Hi Brian ---a replacement potentiometer (also called a variable 
resistor) can be purchased from
Radio Shack or various on line electronics stores for a couple bucks.  
If you can find someone in
your area with a multimeter, you can measure the resistance value of 
your 'pot", and order another.
Hopefully you can also find someone with a soldering iron.  Replacing 
the part should not be a big
deal.   Are there any ham radio operators around you--they could do the 
measuring in a couple
of minutes. Unsoldering and replacing the pot might take 20 minutes.   A 
TV repair shop could
do the same thing.  If you have no luck on that front, contact me off 
line and we can see about
mailing it down to me for repair.

Good luck--Steve


Brian larmay wrote:

>Hi George,
>
>  
>
>>Hi Brian
>>
>>You may be able to just replace the potentiometer in
>>the drive
>>controller if it is just the shaft that was snapped
>>off.
>>    
>>
>
>Well originally it was just the shaft that just broke
>off.. 
>I tried supergluing a piece of allen wrench in there,
>but then it froze the insides of the dial by the
>excess glue.
>What a bonehead move!
>A few choice words did not fix it.
>Im currently looking up what a potentiometer is.
>So far it looks like the dial that im referring to.
>In fact it looks like this:
>
>http://images.google.com/imgres?imgurl=http://www.technolab.org/Bilder/pic-hako/Hako441a.JPG&imgrefurl=http://www.technolab.org/Hako/Katalog-e/Section6.htm&h=226&w=226&sz=13&tbnid=6PpSubPyyDcJ:&tbnh=103&tbnw=103&hl=en&start=18&prev=/images%3Fq%3Dpotentiometer%26svnum%3D10%26hl%3Den%26lr%3D%26sa%3DN
>
>2nd row of pictures from the bottom.
>Sorry for the long url.
>
>
>  
>
>>Open the box
>>and see what numbers are written on the pot. You
>>might be able to bodge
>>in an off the shelf pot to replace the broken one.
>>It would be a lot
>>easier than trying to figure out the number of steps
>>for the stepping
>>motor and the gear reduction to the output.
>>Are you guiding in only one axis?
>>    
>>
>
>Yes, only one axis and I manually correct the other.
>
>Brian
>
>  
>
>>George Anderson
>>Montreal Canada
>>
>>Clear skies and good health
>>
>>Brian larmay wrote:
>>    
>>
>>>Thanks guys.....
>>>
>>>I feel like im heading in t
>>>      
>>>
>
>
>
>		
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