Homebrew PCBs

Hi Brian,
         I bought a plotter. Two things I did not like. 1. It wanted
PLT files. I use GCode. 2. The plotter can't drill the boards. 3.The
plotter can't mill the  boards. So I designed a simple cheap machine 
that could do it all. It will also do 3D work in wood. I bought a 
Roland plotter. I could not beleive how cheaply it was made! But it 
led to the Morph design.

                               John Crankorgan Kleinbauer

www.kleinbauer.com/


--- In Homebrew_PCBs@y..., Brian Schmalz <brian.s@l...> wrote:
> Crankorgan,
> 	Putting bluing on the whole board, then scratching it off 
with a
> carbide metal scratch tip is the method I'm currently using to do 
boards. I
> tape the copper down on a piece of paper, then run it through my HP 
plotter
> (7550A). I get very clean lines and can get down to 10mil space 
10mil line
> with a bit of practice, double sided. I've written custom software 
to take a
> Eagle board file and create HPGL which I then output to the 
plotter. This
> method really works well since you can use a standard plotter (I 
just built
> a special 'pen' with the carbide scratch tip) plus some software. 
Anyway,
> the bluing/scratching method is alive and well . . .
> 
> *Brian
> 
> 
> -----Original Message-----
> From: crankorgan [mailto:john@k...]
> Sent: Saturday, September 14, 2002 6:41 AM
> To: Homebrew_PCBs@y...
> Subject: [Homebrew_PCBs] Re: Inkjet printing PC boards
> 
> 
> Larry,
>       I sell plans for a PCBmill (Brute) and I just finished a 
> machine that will mill or draw simple boards. (Morph)
>       Months ago I brought up the idea of Scratch and Etch. This
> idea is not dead. First I developed a super simple CNC plotter. Now
> I have a machine strong enough to drag a scribe through the blueing.
> Several people tried Scratch and Etch With good results. Coating 
the 
> whole board and then scribing and isolation between pads for 
etching 
> seems easier.
> 
>                                            Crankorgan John