Re: Spindle motor drive belts MAXNC 10

Hans,

How long have you had your MAX? Is this something that has started up
after some period of use, or is it munching belts right out of the box?

If the pulleys have worn or were incorrectly machined, that will not
help belt life at all. If the spindle was run for some time with belts
misaligned, that could wear the V near the top in a flaring open
fashsion. New belts would only be touching at the bottom of the V, and
this could well make the belt want to twist.
Most certainly will wear it out fast.

If pulley wear is the cause, let me look around and see if I still have
my original pulleys. If so, you can have them for the cost of postage.
(and significatly less than MAX's $15!)

Jon

hansw wrote:

>
> From: hansw <hansw@...>
>
> Jon, well I took it apart and studied it very closely, and the pulleys
> are smooth. The current belt appears to be seated deep into the pulley,
> the sides of the "V" seem to have less wear, with noticeable wear
> starting about 80% up the V !
> I would have thought that was wrong. I'm calling MAXNC tomorrow and see
> what they can suggest.....
>
> Hans Wedemeyer
>
> Jon Anderson wrote:
>
> > Hans,
> >
> > You've got something wrong there for sure. I've made my own pulleys
> > and
> > am running a Sherline spindle and DC motor on my MAX, but using the
> > MAX
> > belt. I run my spindle at up around 7,000rpm for hours. I did finally
> > buy a belt, but it was just to have a spare laying around. Actually, I
> > think I ordered two when I found out about shipping. Geeze, I'm
> > getting
> > an HP Deskjet 500 shipped from New Jersey for not much more than MAXNC
> > nicks customers for shipping a puny belt in a little envelope.
> > Back to your problem. Only thing I can think of is, look the pulleys
> > over real careful for any nicks, dents, or scratches that might be
> > abrading the belt.
> >
> > Good luck,
> >
> >
>
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