Homebrew PCBs

Hi Rick
Its probably true because you wont see it cheaper anywhere else 


________________________________
 From: Rick Sparber <rgsparber@aol.com>
To: Homebrew_PCBs@yahoogroups.com 
Sent: Tuesday, 30 July 2013, 14:55
Subject: RE: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards - Dave's toner-transfer freezing technique
 


  
Dave,

I found this on eBay:

http://www.ebay.com/itm/A4-10Pcs-Sheets-Heat-Toner-Transfer-Paper-For-DIY-PCB-Electronic-Prototype-Mak-/170900415631?pt=LH_DefaultDomain_0&hash=item27ca75648f

I think this is the correct vendor. Notice that they have a warning that their supplies are almost gone. Don't know if that is true or just a sales technique.

Thanks,

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of David Pickering
Sent: Monday, July 29, 2013 11:39 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards - Dave's toner-transfer freezing technique

Hi
The paper and supplier that I have been using is on the page you sent marked dib-bid and the suppliers name is shcfstore.
If you notice there is allot of similar type looking paper that others are selling which I cant vouch for because always used the people mentioned.
They told it was wax based paper, that why I originally bought it, maybe its not , but what I can assure is it works with the success rate stated otherwise wouldn't have bothered to pass the information on too you all.
This technique I am using isn't just for hobbies its also used for prototyping in my business. If your wanting to try it I strongly suggest that you buy from the supplier I mentioned then you know you have something that works, otherwise you could well end up with a half shot job and be disappointed.
Regards
Dave 

________________________________
From: Robin Whittle <rw@...>
To: Homebrew_PCBs@yahoogroups.com 
Sent: Tuesday, 30 July 2013, 4:29
Subject: Re: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards - Dave's toner-transfer freezing technique


Hi Dave,

Thanks for this information.

I think your attempt to laser print onto copper is doomed to failure.
As far as I know there is no way of transferring the toner from the drum
to any conductive surface.

Can you describe the Heat Toner Transfer Paper you are using?

http://www.ebay.com/bhp/heat-toner-transfer-paper

Is it a gummed paper, in which there is a clear coating of perhaps
slightly cracked or crackable hard gum, which can be dissolved in water?
This is traditional dextrin gummed paper, as used in stamps and
lick-to-stick envelope flaps.  It is also sold in jars as "flap gum".

If so, I had all sorts of trouble with such paper due to the toner
jumping around the place.  This depended on how dry the paper was - too
dry and the toner would not stick to it long enough to be melted into it
by the fuser roller.

Is it something which water will not touch?

In the write-up of your work by Rick Sparber:

http://rick.sparber.org/electronics/el.htm

Copper Etching with Laser Printed Artwork, by David Pickering
http://rick.sparber.org/electronics/cel.pdf

you mention using the Heat Toner Transfer paper and that after freezing
it, it simply peels off the copper and toner, without any water. I think
this is a most remarkable thing.  I plan to order some of this paper.

Thanks Rick for summarizing Dave's technique, as elaborated in these
discussions.  I suggest you put a link in your document to this fine
discussion forum / mailing list.

- Robin

On 2013-07-30 10:17 AM, David wrote:

> Hi Robin
> The printer I am using at the moment is the Samsung ML1860
> The fax paper I was using is like the old stuff bit wider than A4 so need to trim it down.
> The wax paper as I call it is wax based but has other undisclosed property's, its marketed as Toner transfer paper.
> If you go on fleebay they have drped the price to £1.28 per 10 sheets incl p/p, the company is offshore or something like that.
> The only bug bare is its delivered rolled up so you need to flaten it down for a couple of days or run it through the laminator warm not hot, to straighten it out.
> 
> Regards 

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