On 15/01/2011 15:14, Carl Denk wrote:
> Our township has twice a year, a weekend, rubbish, batteries, computer,
> and other recycling. I asked for and got permission to sort through the
> electronic things, and picked up a Laserjet 4+. 2 hours of disassembly,
> cleaning, and a $35 cartridge, and it performs flawlessly. Haven't tried
> it yet for transfer etching. Used to take inkjet hardcopy to the local
> copy center, they would run it through their high volume type
> copier/printer to glossy paper. That worked well, until they closed a
> year ago.
>
> Does anyone have comments on the toner material? Are all materials equal
> in performance for masking?
>
>> I've seen 4MP on trade sites dirt cheap ($10 -$20) when I didn't
>> want one, now I do, there aren't any ;-))
any decent mono laser should work.
Essentially it's like glue gun glue and soot.

So you need paper to print to that is very glossy so that on reheating=20
the glue sticks to PCB and peels off shiny paper backing.

A Brother Laser likely a good choice. Set it to Thin paper and it will=20
turn down the heat and not bond so tight to the paper. Then prewarm PCB=20
( hostess hot tray?) prior to re-heat.

Allow to fully cool so bonds well to PCB. Then very quick hot heat on=20
paper with iron and peel off before PCB warms to get clean "lift" from=20
backing.

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.