Wife: That really repetitive music that’s playing is getting really annoying!
Me: [Puzzled look, checks headphones on bench are off] What music?
Wife: That durr durr durr … durr durr durr… durr durr durr
Me: [Walk over] Have you left a phone off the hook?
Wife: No, it’s stopped now, it was like nerrr nerrr nerrrr…
[3D Printer gets to the same point in print of my CF card holder]
Wife: There it is again!
Me: Do you mean that? [Points at printer]
Wife: [Facial expression says it all] !!!
Guess I better get the old dishwasher carcass as printer housing up the priority list! It’s 50db over by her desk.
Thomas salanderer has a video review on it that should give you better details than what my understanding is. To me, it’s basically less torque for quiet drive.
Basically it is another pwm mode. Works more like a BLDC than how we controlled steppers before.
I am driving my ShapeOko on this mode and have no problem with torque. From the maths it should be the same torque, just the current control loop a bit slower.
From what I’ve seen on the web the wave shape will be different. The high pitch noise the motors make now comes from the leading edge of the full power square wave. With the Trinamic detecting what the motor is doing, changing current and wave shape, the noise is reduced. I’d have some on the was now if they had any in stock. I’m guessing since Tom’s review noise is down and orders up
HM, Tom prefers the spreadCycle mode of this driver, which is also a sinosoidal waveform, not a fullstep mode. From my understanding the same current integral should be same torque (minus vibrations) - anyway - I talked to Watterott and I understood, they will have these things on stock again soon. Guess they where busy with the raspberry birthday:)
