PC board milling?

[Terry N4TLF]

A place that sells both laser modules and engravers is banggood.com.  They have several lasers and mechanical platforms, some at a pretty good price.  Don’t know about the quality.

The QRP Tech Yahoo group has discussed using laser printers to print out the PC board traces, then use irons or laminators to transfer that to a pc board.  Then you use the chemicals to etch like normal.  I really don’t want to play with chemicals.

I’ve found one or two laser PC board making devices, but it’s generally a tube laser, with limited life.  From what I remember, more than 20W is required to burn the copper.

73 & Happy New Year!!!!   Terry, N4TLF


From: Alberto di Bene 
Sent: Thursday, December 31, 2015 6:53 PM
To: tacos at amrad.org 
Subject: Re: PC board milling?

Hi Terry,

  somebody on Internet suggests a mixed approach...  use a laser diode to engrave a black paint sprayed on a PCB,
then use an ordinary etching method to produce the PCB...

On this page :

http://forums.reprap.org/read.php?133,235148

you can read this :


  First I've coated some copper-clad PCB's with black paint ...
  ... then engraved the outlines with a diodelaser with around 2Watts of 975nm-IR-light on a spot of 0.15mm instead of milling them:

There are also some photos...

Could be worth trying... but first one should get hold of a 2W laser diode...

73  Alberto  I2PHD






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