Homebrew PCBs

I could not find your question...

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of WILLIAM W WINTERS Owner
Sent: Thursday, August 15, 2013 7:29 AM
To: Homebrew PCBs
Subject: RE: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards - Dave's toner-transfer freezing technique

No mistakes.  Just one question.

----- Original Message -----
From: Rick Sparber <rgsparber@aol.com>
To: Homebrew PCBs <Homebrew_PCBs@yahoogroups.com>
Sent: Thu, 15 Aug 2013 10:07:28 -0400 (EDT)
Subject: RE: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards - Dave's toner-transfer freezing technique

 Once I got into my shop I realized that the wax paper would stop any acetone

vapor or even liquid. So I went with plan B and clamped the artwork with a

hose clamp. Then I applied heat using an industrial heat gun. I used a scrap

of paper with toner on it to tell me when the metal was hot enough. Then I

put the copper pipe in the freezer for 30 minutes. The clamping force was

not uniform. Most of the toner did not stick. In a few places it squished

out and left fragments. Where the toner did stick, it is on securely. I

really do not want to build a custom machine just to mimic what a laminator

does so well. Suggestions?


One rather distasteful idea is to put the artwork on a strip of copper, etch

it, and then form it into a cylinder. Solder could be used to secure it.

Even with a precision beveled joint, it would be obvious.


Rick