Hello,
TLDR: G1 commands terminate early when the feedrate is too low with high steps per mm
I am having an issue with the speed marlin prints at, the feedrate does not seem to be respected, this is my gcode (stock ender-3 marlin):
M205 B0 E0 S0 T0 X0; Setup Jerk, jerk is the minimum speed that the motors move
M302 S0 ; print with cold hotend -- This allows cold extrusion, but we aren't doing any, maybe when we use the stepper motor of the extruder too
M121 ; don't use endstops
G91 ; relative positioning
; Start move code
M92 X-20927 Y-20927 Z20927; Very high steps/mm because of my custom application
G1 X0.05 F0.2; takes 9 sec instead of 15
The problem is that the stepper motor stops turning too soon, after 9 seconds instead of after 15. I am not sure if the full distance is moved, or if just terminates early.
What could be the problem that causes this?
; Start move code
M92 X-20927 Y-20927 Z20927; Should equate to steps per ml
G1 X0.05 F0.35; 8.5 sec
Works properly.
Note: I am not actually 3d-printing, I am just using marlin to control the stepper motors for me.
Edited 1 time(s). Last edit at 09/02/2021 10:20AM by bart-marlin.
