Mail Archives: geda-user/2017/06/19/16:39:53
G-Code is RS-274. For the 2D photoplotter, its Gerber format; each is
a variant of each other, but have become estranged over time. Many PCB
prototype houses print the resist on the PCB, (usually with ink-jet
technology.) The machines are expensive and the ink resist is not
cheap, (but its available out of Japan in Cannon cartridge format, for
certain Cannon printers.)
Another alternative is to swap the white LEDs in an overhead projector
with UV LEDs. But one would have the expense of positive photoresist,
or still struggling with getting negative film to stick, which doesn't
help much.
John
John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com] writes:
> On 06/19/2017 02:56 PM, Julia Longtin (julia DOT longtin AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> > I actually have one, but i use it for cutting stensils, rather than for PCB work. It's attached to my 3d printer (a lulzbot taz,
> > heavily modified.)
>
> Sounds like you could get decent resolution, especially when dialed down for exposing resist instead of ablating it...
>
> Is there already some code for getting from .pcb format to G codes or whatever drives your 3DP?
--
John Conover, conover AT rahul DOT net, http://www.johncon.com/
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