[sdiy] Fine pitch etching (was: For breadboard lovers...)

[David G. Dixon]

I concur that my Brother HL-4070CDW colour laserjet printer was a dead loss
for Pulsar Pro (and for PnP blue).  However, I rescued an old disused HP
2100M from a dusty corner of my lab and pressed it into service, and this
works just fine.

> I tried it and was not entirely impressed. I have acheived equally good
> results using Epson glossy photo paper for the transfer with less hassle.
> I'll describe what I mean by "hassle".
> 
> The drawback to the Pulsar system is that it doesn't work with all laser
> printers. The green foil does not adhere to all types of toner. The Pulsar
> site mentioned (or used to mention--I see that it has changed since I last
> looked at it) trouble with Brother brand printers, but it did not work
> with
> the toner in my Samsung printer either. After contacting the company it
> was
> suggested that I photocopy the artwork onto the Pulsar paper and use that.
> That method did work, but the photocopier reduced the image very slightly
> in
> one dimension. (I believe that this is not uncommon in photocopiers and is
> done as a simple anti-fraud mechanism, but I was unable to find
> confirmation
> of this with a few minutes of googling.) So in order to produce usable
> artwork I'd have to put my PCB image into Photoshop to stretch it in one
> dimension to compensate for the reduction of the photocopier. Even when
> using the photocopier toner I found that getting the green film to adhere
> was somewhat unpredictable.
> 
> By contrast, I have successfully etched several PCBs by printing directly
> onto Epson paper--no Photoshop, photocopying, or green film involved.
> 
> There is a Yahoo group devoted to DIY PCBs which has a wealth of
> information
> about this technique, including a chart in the Files section in which
> people
> have reported their success/failure with a number of kinds of paper and
> printers.
> 
> --Adam
> 
> > Speaking of fine pitch etching has anyone had good success with :
> >
> > http://www.pulsarprofx.com/pcbfx/main_site/pages/start_here/index.html
> >
> >
> > His system seems to be well thought out (if not a bit
> > expensive) however his results are excellent.  My only
> > concern is his web site is a little over the top and comes
> > off as an infomercial.
> 
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