Homebrew PCBs

There is no question about it, servo motors are better than 
steppers, but at a cost.  True servos are much more expensive than 
steppers of equal power.  Servo drives are much more complicated to 
build (or purchase) than stepper drivers.  Steppers natural 
attribute of "Stepping" is perfect for easy control via logic.  Most 
of the low-end servo drives try to replicate the functionality of a 
stepper drive (Step and direction).

I will convert my router to servos someday, but when I finally hit 
the limitations of my current stepper motor driven system.

For a simple drilling (and even milling) machine for circuit boards, 
you really can't beat a stepper system for simplicity and cost. 
Heck, if my $50.00 200 Oz. In. stepper motors can drive my router 
(chewing through hard maple), milling a circuit board or drilling 
one is a piece of cake.







-- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@g...> wrote:
> On Wed, 22 Jun 2005 16:30:02 +0200, derekhawkins 
<derekhawkins@y...>  
> wrote:
> 
> >
> > Just like those fooling around with toner transfer now will 
someday
> > move on to photoetching so will those on steppers now move on to 
DC
> > servos. Seems to be a natural progression, at least it was for 
me.
> 
> 
> Imagine that, i did photoetching for years and moved to toner 
transfer,  
> and couldn't be happier about it.
> 
> DC servos are not the answer to a simple drilling machine for 
sure, as the  
> controllers are unnecessary complicated.
> But we all have our opinions.
> 
> ST