Homebrew_PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Dean Thompson" <deanthom@d...>
wrote:

> Hi All,
>
> Anyone used toner transfer to do silkscreens? I've been lurking on

this list

> for quite some time, and just yesterday made my first PCB using the TT
> method. It worked out really well! I used an ordinary clothes iron to
> transfer the image to the PCB. I tried to use a laminator but it

wouldn't

> work, the toner wouldn't stick at all. My laminator has an adjustable
> thermostat (max 140 deg C), is this hot enough?

Just googled- PnP Blue says 275 to 325F for an iron.
http://www.techniks.com/how_to.htm

And 300F is about 150C, so your laminator is not off if it were an
iron. Of course, the laminator has less time and mass to heat the board.

Temp converter:
http://www.globalrph.com/temperaturefc.cgi

> Getting back on track here, I thought, why not use toner transfer for
> silkscreens? So I gave it a shot, and it worked! You can see some

photos at:

> http://thompson.homedns.org/PCB The toner didn't stick very well in

a few

> places but I thought it was pretty good for a first attempt. I just

cleaned

> the board with a green kitchen pad before ironing on the artwork.

That pad does rough it up a bit. You must also use a degreaser. I've
used Comet scouring powder along with one of those plastic scouring pads.

Steve