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@...>
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