Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
... 
> 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.

While I'm reluctant to recommend servos for cost reasons, I think they
can be done at about the same complexity level provided one is
conversant with microcontroller design and programming.  They are more
reliable as open loop steppers can miss steps in some circumstances
and the encoder always tells you where you are.