[chbot] Knob shafts / extensions and insulation

[Volker Kuhlmann]

On Thu 01 Sep 2016 23:42:51 NZST +1200, Helmut Walle wrote:

> Double heat shrink the metal shaft? (And use a plastic knob)? Would
> that work for you?

I'm trying to design + build things in a way that they pass EN60950
testing. It's good practice, among other reasons.

All the standard shafts and knobs are either flattened off or have a
knurly pattern. No way heat shrink would fit, and the flattened off
knobs have screws that would punch the shrink.

It might be easier to earth the shaft. Or use a plastic one, I've found
them now. Or use galvanic isolation, approved components like PSUs,
relays, opto-couplers are easy to come by.

Thanks,

Volker

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Volker Kuhlmann
http://volker.top.geek.nz/	Please do not CC list postings to me.