Re: Drilling solder paste stencils

The two previous posters have hit the nail on the head with the solder
paste release issue.

On a laser cut or etched stencil the openings are usually just slightly
cone-shaped to allow for easy release of the solder paste when the stencil
is lifted. It may not be much but every little assist makes the job that
much easier.

That said, it is possible to do and my employer used to do their own as
well. I wasn't around then and have no idea how successful they were.
However, how much are you saving? I have heard some comments in this NG that
people are buying prototype screens for slightly less than $100USD. So what
is your time and the material worth? Brass isn't cheap, nor is it easy to
handle in very thin sheets and every slight kink/bend is going to adversely
effect performance.
--
Sincerely,
Brad Velander.



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