ok on the HP Toners ..
I ran it thru the laminator ..and there was no sign of the toner even
having thoughts of sticking to the board ..
Either toner .. post office or the HP .. i guess its just not getting
hot enough ..
Are there popular laserjet printers used for PCB's ??
I will keep trying .. and will try the paper towels ..
Randy
________________________________
From: "
kabowers@..." <
kabowers@...>
To:
Homebrew_PCBs@yahoogroups.comSent: Thu, February 17, 2011 9:15:51 AM
Subject: Re: [Homebrew_PCBs] Toner not sticking to PCB well
On Wed, 16 Feb 2011 22:09:39 -0800 (PST), you wrote:
>OK .. went from the problem with the traces running together
>to the toner not sticking well to the copper ..
>
>Can it be that I'm not heating long enough ?
>
>Or can it also be that specific toner ?
>
>Its from a newer model HP copier ..
>
>Randy
>
>
The variables have variables. Unless HP has changed their toners work great.
I run mine (1022) at the highest quality/density setting.
There's a "sweet spot" between time, temperature and size of board.
I did a 4x6 board a couple of days ago using with the iron set halfway
between cotton and linen and ironed for 2.5 minutes with moderate pressure.
Pay special attention to the edges. I paced the board in a folded Bounty
paper towel and used an old cutting board for support.
I use Hammermill OficeOne Business Glossy 32# paper (16302-0) which
may be discontinued. If you "overcook" this stuff it's almost impossible to
get off without pulling the toner off the copper. "Undercooking" results in
failure to adhere; "overcooking" or slippage results in smeared traces.
I recently failed to properly support a board in the center and had to strip
with acetone and start over due to traces running together; lesson learned.
A couple of years ago someone here suggested placing the board between
sheets of paper towel; this resulted in a major improvement for me.
Keith Bowers WB4LSJ- Thomasville, NC
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