Re: [sdiy] simple knob question...

[Roman]

If the knob has shaft, it probably means it's for trimmers, or some kind of hollow pot. Usually knobs have hole for pot's shaft.
And yes, there are many standards. There it 1/4'', 1/8'', 6mm, 4mm, 3mm, and probably some more. The shaft can be knurled, splined, flatted or sloted.
If you have 1/8'' knobs, you can redrill them to any bigger size. It takes some precision and patience but it's possible. I have redrilled a few brass insert set-screw 6mm hole knobs into 1/4'' with great success.

Roman

---- Wiadomość Oryginalna ----
Od: "Matthew W. Russell" <matt at amphibio.us>
Do: synth-diy at dropmix.xs4all.nl
Data: Mon, 17 Nov 2003 21:14:38 -0500
Temat: [sdiy] simple knob question...

>Is there a standard size for the shaft of a knob?  I have an opportunity 
>to get some very cheap knobs, with an 1/8" shaft, but I don't know 
>enough to determine whether they'll work with the project I plan on 
>using them on... (doing a MidiBox to learn about that sort of thing)
>
>Also, semi-unrelated... anyone know if MidiBox works with rotary 
>encoders?  (I know they have a forum, but figured I'd tag it on here anyway)
>
>Thanks!
>
>