Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

GrayDeal;



Thank you for helping to rephrase the question.



In addition to being easier to apply than paint, there are some comments
from those doing it that you need multiple coats, and the paint isn't always
a "solid" enough of a covering, even after multiple coats. Some feel that
auto primer works better, as it tends to "etch into" the copper and adhere
better.



I should be doing some testing sometime later this month. I have a things
happening with the "day job" and just collecting information right now,
please keep the suggestions coming.



Some type of tape/laminate might be ideal.



Also, thanks for the tips on Corel vs AutoCAD. We currently have Adobe
products, if we run into challenges, I'll check out Corel.





John



On Behalf Of garydeal
What's the easiest etching resist to apply?

It doesn't have to be a photo-resist, just something that will live
through the etching process - an etch-block. Laquer? Auto primer? Asphalt?

Once John applies it, then he can see what power and speed is
required to reliably remove it. Even if it's a spray-on that tends to
run, as long as it's not fused glass the laser should be able to remove
it. He just seems to be looking for the easiest one to apply to the board.

Oh, and feeding the machine CorelDraw
files worked much better than AutoCad files, I finally ended up just
redrawing everything in CorelDraw (true single lines).



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