[sdiy] PCBs from printouts

[Grant Richter]

A technique I learned from silkscreening is to use laser prints or
photo-copies on drawing vellum. Normal transparency plastic does not have
enough "tooth" to get a solid black. The frosted drawing vellum cures the
problem and gives a good solid black for photo-tooling. This eliminates the
need for an acetate photo-tool. Very handy.

Print a mirror image and make sure the toner side is in contact with the
photo-resist. Also works for the photo emulsion on silkscreens.

A number 2 photoflood bulb at 12 inches for 5 minutes works for the GC
positive photo-resist and the Speedball silkscreen photoemulsion.

> From: "Paul Maddox" <Paul.Maddox at wavesynth.com>
> Reply-To: owner-synth-diy at node12b53.a2000.nl
> Date: Mon, 26 Mar 2001 22:52:16 +0100
> To: "Synth DIY LIST" <synth-diy at node12b53.a2000.nl>
> Subject: [sdiy] PCBs from printouts
> 
> Dear all,
> 
> Does anyone know of a way of getting double sided PCBs done from printouts?
> I have some PCBs that I only have on paper (color and Ive seperated the two
> sides)
> and woudl like to get some PCBs made...
> 
> anyone up for the challenge?
> 
> Paul Maddox
> 
>