Homebrew PCBs

Try it, multi passes I think.  I use an iron myself

On Wed, Feb 16, 2011 at 3:41 PM, Randy S. <rj3819@...> wrote:

>
>
> Thanks Paul ..
> Think it would be worth giving the laminator a try ?
> Do must people on here use a laminator?
> Should I preheat the board before feeding it thru?
> Or just go with multiple passes?
>
> Randy
>
>
> ----- Original Message ----
> From: Paul Mateer <paul.aa9gg@...>
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Wed, February 16, 2011 4:26:08 PM
> Subject: Re: [Homebrew_PCBs] Re: traces running together
>
> Sounds like to much pressure to me
>
> On Wed, Feb 16, 2011 at 3:16 PM, Randy S. <rj3819@...> wrote:
>
> >
> >
> > Hi Andrew .. thanks for the reply.. apologies for not providing enough
> info
> > up
> > front.
> > Using an iron .. though I do have a laminator ..
> > Have a piece of aluminum on my waffle maker..
> > I let that heat up .. reading the temp .. doesn't go  over 350 ish ..
> > PCB ..I use steel wool .. acetone ..
> > I read something about wanting small scratches  from like a
> > scotch scoring pad so the toner will attach better .. ??
> > First one I pressed down hard .. and worked the iron n forth..
> > Second one pressed down, but didn't work the iron back n forth ..
> > heated the PCB for several minutes... the board sizzled when I quenched
> it
> > ..
> > The iron doesn't get hotter than about 400 degrees from what I can
> > tell with the laser thermometer.. I'm not at home and don't remember the
> > exact temp. I can try to record more exact temps if need. But the all the
> > toner
> > does transfer, and is on the board good .. just spread out .. for example
> > the traces on a 8 PIN DIP are all touching after..
> > Again .. its like a copy of a copy to the final kind of thing ..
> > That may be bad news .. I will know later tonite..
> > When I get a chance to make fresh copies and compare.
> >
> > I was looking at the copy I used to making the final version to transfer.
> > I can see where the gap between the traces is less ..
> > SO ... it may be an accumulation of errors stacked against me ..
> >
> > I am going reprint the original images straight to the paper and compare
> > and try those .. is it possible that I have the darkness setting too
> high?
> > That HP laserjet copier / printer does put a lot of toner on the paper on
> > the
> > darkest setting ..
> >
> > That's about all I can think of ..
> >
> > 1.  Should I try the laminator? Suggestions on multiple passes?
> > 2.  Lighter setting on the printer / copier?
> > 3.  Less pressure, heat or time?
> >
> > all ideas appreciated .. was wondering if anyone was going to reply .. ;)
> > Thanks ..
> >
> > Randy
> >
> > ________________________________
> > From: Andrew <a_wake@...>
> > To: Homebrew_PCBs@yahoogroups.com
> > Sent: Wed, February 16, 2011 3:05:35 PM
> > Subject: [Homebrew_PCBs] Re: traces running together
> >
> >
> > Randy,
> >
> > Are you using a laminator or an iron to transfer the image to the board?
> > How are
> > you prepping the board?
> >
> > If using an iron, how hot, how long, how hard are you pressing, using the
> > flat
> > or an edge, etc.?
> >
> > If using a laminator, how hot, how many passes?
> >
> > --- In Homebrew_PCBs@yahoogroups.com, "Randy S." <rj3819@...> wrote:
> > >
> > > ok .. the glossy laser paper is working fine I think ..
> > > however, my pads and traces are running together..
> > > Am I pressing too hard ? Is it a product of that
> > > toner perhaps? Now.. It is a copy of a copy kind of a thing..
> > > Perhaps a fresh print directly to the paper is better ?
> > > Help please ?
> > >
> > > Thanks
> > >
> > > Randy - N2CUA
> > >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
>
> --
> Paul Mateer, AA9GG
> Elan Engineering Corp.
> www.elanengr.com
> NAQCC 3123, SKCC 4628, FPQRP 2003
>
> [Non-text portions of this message have been removed]
>
> ------------------------------------
>
>
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>
>  
>



-- 
Paul Mateer, AA9GG
Elan Engineering Corp.
www.elanengr.com
NAQCC 3123, SKCC 4628, FPQRP 2003


[Non-text portions of this message have been removed]