Good day All!
Into: I am using RAMBo v1.3 with Marlin FW 1.1.9 on my 3D printer.
Configuration :
My 3D printer is made out of aluminum extrusion and has a large print bed.
Travel limit for X is 500 mm, Y is 500mm, Z is 200mm.
The motors are all NEMA 23 motors.
I have 1 motor on X Axis, 2 motors on Y Axis, 2 motors on Z axis.
X and Y Axis is belt configuration. Z is on ballscrew.
On my Y Axis, I used the first Y motor, Y1, on the RAMBo Y Driver and second Y motor, Y2, on Extruder 1's driver, E1.
In the firmware, I enabled
#define Y_DUAL_STEPPER_DRIVERS and set
#define INVERT_Y2_VS_Y_DIR true
There is only 3 endstops - Xmin, Ymin, Zmin.
Problem:
The Y axis is slower than X Axis. I got the Y axis to travel a distance of 480 mm from 0 mm.
For X Axis, I can move the gantry fast at F15000 mm/m, but on my Y Axes (2 motors), they are moving at max F10000.
My feedrate;
#define DEFAULT_MAX_FEEDRATE {250,250, 6, 250 }
#define DEFAULT_MAX_ACCELERATION { 800, 800, 100 , 1200 }
Jerk does not matter because this is at high speed from 0 mm to 480 mm.
I have gone through the Marlin 1.1.9 FW looking for anything related to
feedrate, Dual motors.
Couldnt find anything.
Hence, do y'all know any idea? problems I am not aware?
Thanks in advance.
