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

----- Original Message -----
From: "matt clement" <buckeyes1997@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Saturday, October 29, 2005 3:45 AM
Subject: [Homebrew_PCBs] Drill sizes for Dremel


>I use a Dremel to do my drilling by hand. What does everyone use for
> bits? i found a nice Dremel brand engraver bit that drills fairly
> small holes well, but not as small as my vias.
>
> Also are you drilling before etching, after etching? Do you etch the
> hole in the pads to guide the drill bit or not? I seem to rip alot of
> pads off during the drilling itself on both sides >< .

I drill after etching (boards are resist-coated) and have holes in the pads.
I use 0.8 mm tungsten carbide drills and the highest possible drill speed
(Minicraft drill and stand).

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

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