Homebrew PCBs

Interesting idea.

but what is the overall accuracy ?

it would seem that a PCB could be off more than just a few thou over 
the lenght of a 10 inch board and still be very accuracte for 
locating chips and stuff.

Has anyone done realworld tests ?

I would assume that inkjet and laser and copiers would not be perfect 
as the US treasury has dictated that such machine cannot be exact 1:1 
ratios. goes to preventing the average Joe from making their own $$$$

DAve




--- In Homebrew_PCBs@yahoogroups.com, "TT Scale Model Railroads" 
<ttsmr@y...> wrote:
> I need to have a few 8x10 inch pcbs etched.
> 
> These are not for electronic applications but a calibration test 
> tool.  They will have a rectangle out lined with measurment marks 
on 
> all 4 sides.
> 
> I have the art work but need to find someone who can etch them for 
me.
> 
> Would anyone be available to make several etchings for me and at 
what 
> cost?
> 
> Please feel free to email me at:
> 
> ttsmr@y...
> 
> Thanks,
> 
> DOn