On Thu, 3 Dec 2009 09:38:11 -0000, Alan B. Pearce wrote:

>>I think he just placed the PCB over the guide he'd printed
>>in the previous pass.
>
> That is what I saw as well. Another factor that I thought at the time was
> that whatever it is that is being used as the ink may be thick and sticky
> enough to act as an adhesive to glue the PCB to the paper. Note how after
> printing on the PCB he 'develops' the printed mask by heating it on an iron,
> before etching it.

I took the iron bit as drying the ink to prevent running; it probably also
fixes it to the board better.  Just done a few google searches, and found
this page:

	<http://www.fullspectrumengineering.com/pcbinkjet.html>

Looks like they supply kits/products for this technique.  In there they say:

	"After printing, the board is dried and then etched immediately"

So looks like I may be correct - but I don't have 1st hand experience of this
technique so standard BS disclaimer applies :)

Looks like they're also taking advantage of the direct-to-CD models of
printer.

Regards,

Pete Restall
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist