Screen printing PCBs?

Wanted to stop using toner transfer due to the time it take to do any volume.

I was wondering if Screen printing PCBs was an option?

Iv got a screen printing rig already, so was just wondering if I could use some special etch resistant ink?

Iv got a screen printing rig already, so was just wondering if I could use some special etch resistant ink?

If you can find out what kind of ink sharpies use, you could potentially use that (its used for touch-ups on trace work on the PCB before etching; they also make an "industrial" version of the ink that is even stronger, but you probably don't want that).

Or - maybe some kind of acrylic-based ink...? If such a thing exists...

:slight_smile:

Found this, too:

http://www.nazdar.com/pdf/182034PC%20Etch%20Resist%20Black%20%20Rev%201.pdf

Check this, too - closer to home for you!

http://www.megauk.com/screen_printing.php

Ain't cheap, tho!

:slight_smile:

Thanks for the links cr0sh!

Glad I 'acquired' a screen printing table during my collage, looking at the prices.

The uv process I use takes longer but it's better I think... Maybe I should do a tutorial with photos on next pcb I make.

I print the layout on photo paper using a laser printer. Then I iron it on a copper board. soak for 10 minutes, rub off all paper, leaves the black traces behind. etch. drill.

does not work well for traces smaller than about .015"