[sdiy] Drilling 'square' holes

[vitreousflux]

For my thumbwheel switches, I used a dremel cutoff wheel to cut most of it,
and then needle files to shape as needed (cutting into sheet steel). The
hole was a bit larger than a hole typically used for a pot, however. Worth
noting that sparks aplenty and micro-fine steel dust abounds, so safety
glasses and breathing masks are a must.

I suppose you also could drill a round hole, diameter=square width, then
file to square what you need, but that would be tedious if more than a few
holes.

Rob

----- Original Message -----
From: "Kyn Si" <kynsi at boomboomclap.demon.nl>
To: <synth-diy at node12b53.a2000.nl>
Sent: Friday, April 20, 2001 7:00 AM
Subject: [sdiy] Drilling 'square' holes


> Hi Folks,
>
> I am designing a PCB and I want to use Alps snap-in potmeters. For these I
> need do make square 'holes' in the board. How do I drill these, or should
I
> just use round holes?
>
> Thanks!
>
> Corneel.
>
>
>
> _._._._._._._._._._._._._._._._._._._._._._._._._._._._.
>
> "the modern day composer refuses to die" - E. Varese
>
>             "real music never will" - K.S.
>
>         http://www.boomboomclap.demon.nl/kynsi
>
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>