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

----- Original Message -----
From: "Philip Pemberton" <philpem@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, July 14, 2005 8:23 PM
Subject: [Homebrew_PCBs] PCB drill recommendations


> Hi,
> Well, I'm getting rather sick of my Expo Reliant breaking drill bits. The
> chuck seems to be quite badly worn, and the bearings are utterly fried
> (not
> that they were any good to begin with. I'd hazard a guess that the drill
> bit
> really shouldn't look as if it's vibrating...
> Anyway, long story short, I'm after a new PCB drill. I've come up with a
> shortlist of three:
> 1) Dremel MultiPro. Saw it in B&Q for £35, looks like a nice drill.
> 15kRPM-33kRPM, two-speed (IIRC), mains powered. Couldn't find any
> suitable stands for it - with a bit of luck it might fit the stand
> I've
> already got.. with a little modification that is.
>
> 2) Expo (www.expotools.com) Zircon. £40 including transformer and
> accessory
> kit. Build quality looks a little suspect, but it will fit the stand
> I've already got.
>
> 3) Minicraft MB1012 "High Precision" (see www.shesto.co.uk). 18,000RPM.
> £38
> for the drill, plus another £55 for the speed controller, then another
> £39 for the stand. Hideously expensive for what it is IMO.
>
> What PCB drills are you guys using? Anyone got any recommendations?

I've got the MB1012, stand and speed controller. I think the drill,
controller and lots of little brushes and things cost me about £60 in a kit,
and I paid about £30 for the stand. I wouldn't describe the drill as "high
precision" but it isn't too bad. Tungsten bits are OK drilling the Fotoboard
I use most of the time but break easily when drilling FR4.

Leon



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