[sdiy] Drilling 'square' holes

[Paul Perry]

At 03:06 PM 20/04/01 +0200, you wrote:
>The Alps RK09 series, Farnell code: 918-878
>
...I used these on a mixer (never again!).
A round hole, with a PCB pad to solder to, works fine.

I say never again, because they wern't all that robust.
The ones I use now have a threaded bush & this prevents 
transverse force being applied to the shaft, to some degree.

paul perry melb austrlaia