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Qusedwey 3D Printer TMC2209 V2.0 Upgraded Version 42 Stepper Motor Driver for Reprap Ramps1.4 MKS Prusa I3 Pro

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Product description

  • Please DO NOT connect the motors when measuring the voltage, or it's easy to burn .
  • Verf measures the voltage of Gnd and potentiometer middle.
  • Driver Current Regulation:
  • Please connect the power supply when measuring voltage as well, do not connect only the USB power.
  • Please pay special attention to the direction, do not insert wrongly!

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