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Date: Mon, 19 Jun 2017 13:14:54 -0700
From: Larry Doolittle <ldoolitt AT recycle DOT lbl DOT gov>
To: "John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Subject: Re: [geda-user] DIY PCBs --> UV laser printer
Message-ID: <20170619201454.GA22586@recycle.lbl.gov>
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John -

On Mon, Jun 19, 2017 at 02:40:25PM -0500, John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com] wrote:
> On 06/18/2017 02:57 PM, Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> >To print pattern with UV laser printer directly on PCB treated with photo resist will probably produce a very good result but I
> >have not find printer for sale and guess they are very expensive.
> A raster printer with UV light would be a good product that would compete with the CNC mills for pcb
> production.  I don't hear anything about UV LED arrays, so probably swapping a UV laser diode might work in
> a normal laser printer design, but have not heard of UV laser diodes either.

http://hackaday.com/2017/06/15/laser-pcbs-with-ldgraphy/
https://github.com/hzeller/ldgraphy
Home-brew, "open source", using a 500 mW UV laser.
"fully operational with a reliable resolution of ~0.15mm/6mil"

   - Larry