Homebrew PCBs

One book NOT to get is "CNC Robotics" by Geoff Williams. The 
descriptions make it sound great for the beginner. The reality is 
much different.

First problem is that he uses the rails from a photo-exposure 
machine as the basis for his machine. For you to get the same thing 
you'd have to be extremely lucky or lay out a for thousand dollars 
for the photo-exposure unit to cannabalize.

Second problem is that only one machine type is presented. No 
discussion about rail or bearing options, only the one he used is 
talked about.

Basically, one day searching the net and reading the CAD_CAM_DRO 
group will net you more information that this book can provide.

Basically, the book is just a diary of the building of a single 
machine being built. It would be ok as a $10-20 book but this thing 
is like three times that price.

> There are lots of ways. If people are looking at building a fairly 
> robust machine, take a look at the books by Dave Gingery 
(published 
> by Lindsay Publications 
> 
> <http://www.lindsaybks.com>. 
> 
> It's overkill for PCB drilling, but even if you don't build to 
> Gingery's specs, the sections on how to make accurate and robust 
> machine ways (sliding parts) are invaluable.
> 
> ADDITIONAL SORUCES 
> 
> 
> > Camden Miniature Steam Services
> > Barrow Farm
> > Rode near Bath
> > Somerset BA3 6PS
> > ENGLAND
> > www.camdenmin.co.uk
> > telephone: 01373 830151
> > fax: 01373 830516
> > 
> > Plough Book Sales
> > PO Box 14
> > Belmont VIC 3216
> > AUSTRALIA
> > telephone: 03 5266 1262
> > fax 03 5266 2180