Yeah my simucube makes a sound like a metal “Slinky” toy.
I’ve started calling mine the “Slinkycube”
I do wish this was fixable, but it appears to be a byproduct of the hardware design.
I once saw a cutaway view of the simucube and it looked like the copper coils were wrapped around the unit, picture a slinky, but much smaller and longer, wrapped around the center axel a dozen times.
Most of the time, you don’t hear movement of the coils at all, it seems like you need a “Fast Reverse force event” to cause the slinky sound.
The easiest way to reproduce this is just to set a hard stop in true drive and, without any sims running just turn the wheel as fast as you can until it hits the stop - I hear the coils “Slinky” every time.
(Another way to reproduce is to load up your favorite go-kart sim, as they ALL seem to make this sound with every single turn of the wheel)
@Bernhard_Berger thanks for the tips on recon 10+lower amps I’ve also had good luck by turning the slew rate to the minimal setting - I wonder if some combination of recon and slew rate reduction might allow for higher force (amps) in your case.