Homebrew PCBs

Are you using the correct serial cable or adapter? The serial port on
those HP plotters is not standard.

Scroll down this page:
http://tinyurl.com/8w4dv

Also the small format HP plotters use a lower left origin.

Steve Greenfield

--- In Homebrew_PCBs@yahoogroups.com, "idaho_huckleberry"
<dmiller45@j...> wrote:
> Has any one had any luck in using a plotter to scribe through the etch 
> resist to make a PCB?
> I have a HP 7440 plotter I have modified with a scribe head, I down 
> loaded a routine suggested on this group and tried it on my Eagle 
> layout. It seems to create the files, but when I send them to the 
> plotter the scribe just goes to the upper left corner of the board, 
> makes noises and bounces the scribe up and down. I suspect it is 
> trying to get to some un-reachable portion and that is the furthest it 
> can get to.
> 
> I see where others have used this successfully, is there some other 
> modifications to the softweare or plotter that needs to be made?