Homebrew PCBs

Philip Pemberton wrote:

>
>The thing I *REALLY* don't like about my C64 is that the head's picked up
>some dirt, and now when it starts printing I get a grey/black track down the
>side of the page. Kinda annoying when you're using the uber-expensive
>DuraBrite photo paper...
>
>It is, however, the only inkjet I've found that uses smearproof inks. HP and
>Canon ink seems to run when the paper gets wet, the Epson stuff doesn't.
>YMMV. :)
>
>  
>
  R200 does the same thing now and then, especially if the paper is 
curled a bit in the wrong direction.  I think the paper path doesn't 
100% keep the paper away from the head at least on this one..

  Yep looks like why it manages to stand up to etchant ok.  I have some 
liquid ceramic paint from doing the house, like cold cream in 
consistency.  Thinned out with water it'd probably work through a print 
head, and leaves a good film even when very thin.  Meaning to check it 
for etching, but too many other things to do so haven't etched anything 
for a month or two..  Got too many boards to build and layouts to finish 
already on deck..

  Almost sucks selling things, even when you make $100 on $20 of parts.  
Once it sells then you actually have to build the damn things, it's 
almost a job.. :)  Kind of fun, but can't wait to have an employee to do 
this part..

Alan