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Changes to Tuning Motor Current Introduction

Edit by Tyler Anderson

Edit approved by Tyler Anderson

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Introduction
== Reasons you would want to adjust the motor current ==
* Motors running too hot. This is especially a problem when its the extruder motor, since it can soften and deform the filament before it reaches the hot end and cause a jam.
* Shifts in the middle of prints / skipping steps. This happens when the printer is trying to run faster than the motors can keep up. Increasing power to the motors can help with this, however it is not advised to drive the motors past their rated limits. In this case you should reduce your acceleration instead.
== Digital vs Manual Current Control ==
Some printers have digipots for digital current control. For these printers, the current is set through your firmware configuration.
Marlin: Configuration_adv.h section titled...
Repetier: Configuration.h...
Boards with digital current control:
* Rambo
* Azteeg X3 Mini
On other printers the current is adjusted via trimpots on the motor drivers themselves. This goes for any printer using modular Pololu style stepper drivers.
Boards with manual current control:
* RAMPS
* Brainwave Pro
* Azteeg X5
Time Required Min
5 minutes
Time Required Max
5 minutes
Difficulty
Moderate
Easy

Tools

  • Small Phillips Head Screwdriver x1 added.
  • Multimeter x1 added.
  • Alligator Clips x1 added.

Steps

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