[sdiy] Drilling 'square' holes

[Magnus Danielson]

From: Kyn Si <kynsi at boomboomclap.demon.nl>
Subject: Re: [sdiy] Drilling 'square' holes
Date: Fri, 20 Apr 2001 15:06:15 +0200

Dear all,

> The Alps RK09 series, Farnell code: 918-878
> 
> -->At 01:00 PM 20/04/01 +0200, you wrote:
> -->
> -->>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?
> -->>
> -->Corneel, what part number are these?
> -->I just put 60 alps snap-in pcb mount boards in place, small square ones, 
> -->and
> -->I didn't need to drill any square holes!
> -->
> -->paul perry Melbourne Australia
> -->

The Alps RK09 is actually one of my favorites. I just looked left to
see them in them in the flesh. Unless they have changed them since I
last bought a bunch, you drill one large hole of 7 mm diameter and a
small one of 2 mm diameter for the rotational tap. The hole centers
should be 6 mm apart. No square holes in sight.

I hope this solves your problem.

Cheers,
Magnus