Homebrew PCBs

On Thursday 17 April 2003 10:26 am, Stefan Trethan wrote:
> hmm the problem is that i'm quite far away from the next wally
> world (several 10000 km i guess), living in austria. but i will
> have a look if this particular paper is available here and if not i
> will buy some different papers.. but isn't photopaper for inkjet
> printers? or is this laser photopaper (i don't assume any laser
> capable of photo quality)?

The paper is indeed for inkjet printers. You want to use a paper that 
will not stick very well to the toner, so the toner will instead 
stick to the board.

The glossy surface on inkjet photo paper (as well as on magazine 
pages, backing paper from computer labels, etc.) is good for this.

Be careful, though; some inkjet photo papers have a polymer coating 
that is very hard to remove.

> i have cleaned the board with alcohol, as it was quite new i
> guessed this would be enough. next time i may give it a rub with
> steel wool and see if it gets better.

NEVER use regular steel wool! Pieces of the steel will jam themselves 
into the copper and break off. Then they'll corrode. Either use 
stainless steel scrubbers or Scotchbrite abrasive polymer scrubbers. 
You can use abrasive scouring powder as well to help get the grease 
off.

Don't handle with your hands; use gloves and avoid touching the copper 
surface after you clean it.

-- 
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE