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Subject: RE: [Homebrew_PCBs] Cermark Laser marking for PCB resist?

From: "Tony Smith" <ajsmith1968@...>
Date: 2016-09-18

1.5cm/s isn’t that bad if you just do the outlines of the traces, same as how people mill PCBs.

 

Diptrace has an option where you can export the outline, I know people have written routines for Eagle etc.

 

As an aside, cutting speeds on typical hobbyist lasers (<50W) tend to be under 1cm/s.  This took an hour to cut (3mm acrylic mirror, around 50x30cm):

 

https://dl.dropboxusercontent.com/u/31090134/Laser/2015-12-23%2015.34.42.jpg

https://dl.dropboxusercontent.com/u/31090134/Laser/2015-12-23%2014.59.30.jpg

https://dl.dropboxusercontent.com/u/31090134/Laser/2015-12-23%2015.37.58.jpg

 

Lasers are awesome.

 

Tony

 

 

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
Sent: Sunday, 18 September 2016 1:22 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] Cermark Laser marking for PCB resist?



I don't know. 1.5cm per second is pretty slow.

 

Steve Greenfield AE7HD



---In Homebrew_PCBs@yahoogroups.com, <crissstian@...> wrote :


Are those solutions color sensitive or only thermal sensitive?
Why not 1W laser with reduced speed 10 times (from the recommended 15cm/sec)  for the LMM14 spray?
Cristian