Homebrew PCBs

Rick

15 years later I worked with two of the foremost Auxetics experts, husband and wife, Kim and Andy Alderson.

Malcolm

I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
Ha-ktovet al ha-kir

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On Fri, 8/16/13, Rick Sparber <rgsparber@...> wrote:

 Subject: RE: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit  Boards - Dave's toner-transfer freezing technique
 To: Homebrew_PCBs@yahoogroups.com
 Date: Friday, August 16, 2013, 5:01 PM
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
   
 
 
     
       
       
       Malcolm,
 
 
 
 You sure have a talent for finding "moon rocks"
 ;-)
 
 
 
 Does look like interesting material.
 
 
 
 Rick
 
 
 
 -----Original Message-----
 
 From: Homebrew_PCBs@yahoogroups.com
 [mailto:Homebrew_PCBs@yahoogroups.com]
 On Behalf Of Malcolm Parker-Lisberg
 
 Sent: Thursday, August 15, 2013 9:12 AM
 
 To: Homebrew_PCBs@...m
 
 Subject: RE: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY
 Circuit Boards - Dave's toner-transfer freezing
 technique
 
 
 
 Rick
 
 
 
 A while ago I had some samples of Auxetic foam gasket
 material that I used on a pumping system. It is peculiar
 stuff in that if you stretch it it grows in diameter and if
 you squash it, when using it as a gasket, it expands to fill
 all the voids. Clamped between the band and the transfer
 sheet it would ensure even pressure distribution.
 
 
 
 See:
 
 <http://www.youtube.com/watch?v=PLDbSWSm5i8>
 for an explanation.
 
 I can't remember who made it but it was reasonably
 priced.
 
 
 
 An alternative would be to use a rubber gasket material.
 
 
 
 Malcolm