Re: [APML] Stepper motor speed controller?

[Brian larmay <power_windows4789@yahoo.com>]

Thanks alot guys for all the helpful info, ive learned
a little bit about electronics, but im going to send
it to someone on the list to be fixed or rigged.

I wish I had alot more time to learn more about this
and reply to every email, but ive been extremely busy
with school and such.

Very interesting about the crazy glue George:)

Brian

> Hi Brian
> 
> Trust me, I have seen a lot worse moves than what
> happened to you. Watch
> out for crazy glue near optics. It outgases as it
> cures and will cause a
> bloom (fog) to harden on optical surfaces (ok, any
> surface). Watch an
> episode of CSI to see how they use crazy glue in a
> fuming chamber to get
> fingerprints.
> You have the right photo for the potentiometer, now
> you just need to
> find out the correct value. If there are no visible
> markings on the body
> then you will have to go the multimeter route as
> someone else has
> suggested.
> If you find out the value and cannot find one which
> is the same size
> physicaly you can always add a few inches of wire
> and run the leads to
> the outside of the case and mount the pot there. You
> are not dealing
> with very high frequencies and the little bit of
> capacitance from the
> wires won't cause you any grief.
> As someone else has suggested see if there are any
> ham radio operators
> nearby, you might be able to swap some viewing time
> for some
> soldering/meter time.
> 
> George Anderson
> Montreal Canada
> 
> Clear skies and good health
> 
> 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.....
> > > >



		
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