[sdiy] Momentum in front panel controls?

[Gordonjcp]

On Tue, Sep 13, 2022 at 07:01:50PM +0200, cheater cheater via Synth-diy wrote:
> I was wondering if anyone had seen sliders or knobs that had momentum.
> I think it could feel nice to work with something like that, and it
> could also let you eg propel a slider to make a slow fade happen while
> you're also doing other things at the same time. This video about
> flywheels made me think about it:
> https://www.youtube.com/watch?v=TrNEkbdXEuw

I worked on something years ago - can't say what it was other than "breathtakingly expensive" or where - which had rotary encoder knobs about the size of the tuning knob on my Trio TS520, maybe about the size of a tangerine. Inside was a little brass gearbox driving a solid brass flywheel. It was well-damped and would spin for a couple of revolutions if you gave it a good flick, but tended to stay where it was left if moved slowly.

Amazing piece of zero-fucks money-no-object engineering. It wasn't music kit, but think in terms of if you wanted a Synclavier but you wanted to make it really really expensive.

-- 
Gordonjcp