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[DPRG] Home PCB production?

Subject: [DPRG] Home PCB production?
From: Dale Wheat dale at dalewheat.com
Date: Fri Feb 26 08:48:27 CST 2010


I use the "toner transfer" system.  I print out a 1:1 layout on special decal 
paper on a laser printer, then transfer that image to copper clad board using a 
modified badge laminator.  I then remove the backing paper by soaking it in 
water.  At this point I use a ferric chloride bath to etch the copper, but I've 
been wanting to use the sponge method instead.  After the acid bath, I rinse the 
board with lots of water and then drill out the holes (if any) with a tabletop 
(8") drill press.

This is not the cheapest method to use, but it does produce excellent results 
with practice.  To get started on-the-cheap, you can just draw circuits on 
copper clad board (I have some you can have if you'd like to try it) with a 
Sharpie and dunk it in the acid (or use the sponge).  You can buy ferric 
chloride at Frys.  A little goes a long way.


Dale Wheat

(972) 486-1317

Dave Grubb wrote:
> Hello group,
> Making PCBs at home is something I've been thinking about recently. I've 
> found various techniques of varying cost and technical ease, from acid 
> baths to one quite innovative solution which involved making a home UV 
> chamber with LEDs, and wondered what kind of methods members here favour?
> Cheers,
> Dave.
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