Reply To: Different problems on the three axes (including the Z buzz / dive)

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#16523

Scott Adkins
Participant

Unfortunately you have to modify the firmware. In theory you can alter it via the marlin interface, but for me at least it only allowed you to alter it in increments of 100, which is useless.

This means you have to install arduino, download the firmware, alter the configuration.h, then upload it to your arduino/ramps board.

These pages will help:

Software

Marlin Firmware

The original acceleration was defined as:

#define DEFAULT_MAX_ACCELERATION {400,400,55,800} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.

And mine is currently: (changed 55 to 45)

#define DEFAULT_MAX_ACCELERATION {400,400,45,800} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.

But based on the marlin page above, it’s been changed to

#define DEFAULT_MAX_ACCELERATION {400,400,40,800}

Hope that helps