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

----- Original Message -----
From: "Stefan Trethan" <stefan_trethan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, July 24, 2005 11:58 AM
Subject: [Homebrew_PCBs] what if - drilling under water


> Hi,
>
>
> whille looking around for a shop vac to catch drilling dust i had an idea.
>
> If i set up the CNC for EDM anyway, why not simply drill the boards under
> water?
>
> Then the water could simply be discarded after drilling the hols and
> milling the outline.
>
>
> What do you think? Any problems?
> Maybe the cooling from the water would even be good? Does carbide rust?

The board might need to be dried in an oven before soldering. I've had
problems with DS PTH PCBs absorbing moisture which causes bubbles in the
solder joints. Probably not a problem with SS PCBs, though.

Carbide won't rust.

Leon
--
Leon Heller, G1HSM
leon.heller@...
http://www.geocities.com/leon_heller



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