Homebrew PCBs

I talked to them few years ago and they admitted that there is not 
enough precision for what you want to do. I also suggest 
wwww.kleinbauer.com  Great plans and superior web-based support. Mike 

--- In Homebrew_PCBs@yahoogroups.com, "Tony Smith" <ajsmith@r...> 
wrote:
> 
>    Date: Sat, 10 Jan 2004 17:08:19 -0000
>    From: "Dave Mucha" <dave_mucha@y...>
> Subject: Re: could this work for PCB milling?
> 
> --- In Homebrew_PCBs@yahoogroups.com, "Justin" <jcom10@y...> wrote:
> > Firstly hello to the group - first time poster here :-)
> >
> > Currently I produce my own PCB's using the UV/dev/etch method.
> > (homebrew UV box using insect killer lamps, etch tank is a cereal
> > container and fish tank pump)
> > This works well but is messy and time consuming (at least it is
> when I
> > do it!).
> >
> > I would prefer a CNC milling solution and having searched around,
> > found what looks to be a promising 'off the shelf' solution:
> > http://www.milinst.com/robotics/robotics.htm#axis. At £189 for the
> kit
> > it would seem quite affordable, but is it up to the job?
> >
> > I don't know much about this sort of thing, so wondered if anyone
> > could speculate on its suitability for prototype PCB work.
> >
> > Thoughts?
> >
> > Cheers,
> > Justin.
> 
> 
> Have a look at http://www.gloomy-place.com/, follow the CNC link.
> 
> He brought one of these, and decided it wasn't quite what he wanted.
> 
> Dave's comments are right, it's a simple design, but lacks power & 
accuracy.
> It doesn't use threaded rod btw, it uses dial cord, like on old 
radios.
> 
> After a bit of hack & slash, he eventually built a new one based on 
plans
> from www.crankorgan.com.
> 
> He was happy with motors, they're NEMA 23 single stack, about 50 
oz/inch
> torque, pretty much the lower limit for most CNC machines.  You can 
easily
> switch over to bigger motors once you've mortgaged your house.
> 
> Tony