Printer Model: Ender 3 v1, pro and v2
MCU / Printerboard: creality 4.2.7
Hello guys, just a simple question:
I was wondering why there’s no run_current value in such boards configurations?
If I use bigger motors, will the steppers adapt the run_current by themselves ? Or will klipper use the default 4234 motors value?
Thank you!
(No klippy.log because it’s not an issue, just a general question)
This board has “dumb” TMC drivers that cannot be controlled via software. There is a small potentiometer besides each driver chip that allows setting the current via measuring voltage.
See https://learn.watterott.com/silentstepstick/faq/#how-to-set-the-stepper-motor-current
I read somewhere that the Vrefs were ignored by klipper so I wasn’t sure.thank you @Sineos !
If you have drivers that have a potentiometer but are connected via UART or SPI, then the software setting takes precedence. If the drivers are not connected to such a bus, you can only use the potentiometer.
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