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A silly question about knobs


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Hello everyone, I have a pretty dumb question.  I have ordered 15 encoders for my MB-6582 control surface, and the shaft size is 20mm, however I'm not sure what the size of the knobs I order for them should be.  I assume they shouldn't be the same (as in 20mm) but I'm not sure.  I did a search around the forums to see if this had been asked before, and tried to compare other peoples builds to part sizes but couldn't find any for-sure answer. 

 

Thanks for any help!

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Most likely the encoders come with a 6mm D-shaft. The flat is 4.5mm so this is the standard shaft, unless you go for a splined, a.k.a T18 serrated shaft. There are also 4mm and 6mm plain shafts, and 1/4" (6.35mm). Anywho, enough with the shaft sizes, it is a 6mm D-shaft if you got the recommended part.

The nut that you normally want covered is either a M7 or M9 so you want a knob with a base diameter 12-13mm minimum. Of course, you should go for the aesthetically correct choice and join the Albs "Waldorf" knob bulk order that was just announced :)

It is not easy to find "plain Jane" knobs without an indicator line for encoders.

Edited by jojjelito
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Of course, you should go for the aesthetically correct choice and join the Albs "Waldorf" knob bulk order that was just announced :smile:

 

Aesthetics is one criteria, another one is ergonomics. In that respect I still find the Waldorf knobs suboptimal. For encoders I'd prefer knobs that measure less in diameter than the Waldorf ones.

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Aesthetics is one criteria, another one is ergonomics. In that respect I still find the Waldorf knobs suboptimal. For encoders I'd prefer knobs that measure less in diameter than the Waldorf ones.
Actually I agree with you. I wish it was easy to get hold of the good old Re'an P401 (the Sammich knob). I think that production is ongoing for their 16mm and 16mn soft-touch knobs, as well as the hard tri-color knobs. Rapid Electronics carry those at reasonable prices. All those knobs at Rapid are for T18 shafts, BTW.
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