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Posted by Bo-Ming Tong on August 16, 2010, 5:39 pm
On Aug 16, 2:05 pm, S...@ControlQ.com wrote:
> On Mon, 16 Aug 2010, Bo-Ming Tong wrote:
> > Date: Mon, 16 Aug 2010 13:01:15 -0700 (PDT)
> > Newsgroups: comp.robotics.misc
> > Subject: tiny steppers from DVD drive
> > I always hear small steppers appropriate for hobby robotics use may be
> > extracted from CD or DVD drives. I wonder where the CD/DVD drive
> > manufacturers source their motors? I tried just googling brushless
> > motors and the results returned are always a fairly large motor
> > requiring a fairly high voltage at a fairly expensive price, but
> > there's got to be something much smaller for a buck given how cheaply
> > DVD drives are selling?
> Do you mean steppers, or Brushless DC (BLDC) motor drives?
Thanks! I have a project requiring both a small stepper and a small
brushless. I think the DVD spindle is a brushless servo, but not sure
about the tracking movement for the laser pickup. Extracting parts is
a great idea for prototype but if I succeed I would like the ability
to productize it in the 1,000 range.
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> Newsgroups: comp.robotics.misc
> Subject: tiny steppers from DVD drive
>
> I always hear small steppers appropriate for hobby robotics use may be
> extracted from CD or DVD drives. I wonder where the CD/DVD drive
> manufacturers source their motors? I tried just googling brushless
> motors and the results returned are always a fairly large motor
> requiring a fairly high voltage at a fairly expensive price, but
> there's got to be something much smaller for a buck given how cheaply
> DVD drives are selling?