Homebrew PCBs

On Sun, 31 Jan 2016 12:19:13 -0500, you wrote:

>Harvey,
>Why would you even bother to try hot transfer when you master the cold transfer?
>
>To me, what Duwayne has accomplished is a HUGE IMPROVEMENT. I will not even consider
>trying hot transfer ever again.

I may try cold transfer one of these days, but I prefer to minimize my
exposure to the chemicals.  I can do a decent 10/10 with hot transfer.
Registration (since I do each side separately) is not a problem since
I can drill the alignment holes quite precisely.

I split my work between doublesided boards done commercially (because
I've not got the room nor inclination to try plated through holes, and
some boards I do need 6/6) and ones/twos of homemade doublesided
boards.  

Harvey


>
>
>Just my $0.02,
>Jean-Paul
>N1JPL
>
>PS: I have been doing PCB for almost 50 years, and Duwayne\ufffds process is by
>far the best for DIY.
>
>
>
>> On Jan 31, 2016, at 10:01 AM, Harvey White madyn@... [Homebrew_PCBs] <Homebrew_PCBs@yahoogroups.com> wrote:
>> 
>> On 31 Jan 2016 05:46:34 -0800, you wrote:
>> 
>> >Probably due to the unmodified laminator I used. I had to run the board through 5 or 6 times to get good transfer to the board. Even with rotating the board between passes, I usually had holes on end shifted over about a half pad or more. I also had to run the board through 3 times to preheat before applying the transfer pattern. Total time involved is about the same as when I used the laminator. Also I had to use a genuine Brother cartridge, could not get good transfer with generic cartridges. With the cold method I have not had any problems with either type.
>> 
>> Brother has been known to have higher temperature melting point
>> toners. This could be a difficulty. Cold method bypasses that, of
>> course. If you go to the hot method, you might experiment with a
>> transfer from another kind of laser printer.
>> 
>> Harvey
>> 
>> >DuWayne
>> 
>> 
>>