Slowing in line with part no extrusion

demonlibra

Good day.
Why happening freezes while running this g-code?

G28			; Homing
T0			; Select tool T0
M83			; Extruder to relative mode
M302 P1			; Allow cold extrudes

G1 X20    F9000
G1 X80 E1 F9000
;freeze
G1 X120   F9000
G1 X80 E1 F9000
;freeze
G1 X20    F9000

Phaedrux

What do you mean freeze?
What firmware and duet are you using?
How are you executing the gcode?
Can you post your config.g and the results of M122 and M98 P"config.g" please?

demonlibra

Speed slowing down between move with and without extrusion.
Firmware 3.3.
Executing like any other gcode from duetwebcontrol.

M122.txt M98.txt

Phaedrux

@demonlibra said in Slowing in line with part no extrusion:

Executing like any other gcode from duetwebcontrol.

As a print job or a macro?

Can you post your config.g?

demonlibra

Print job

config.g

alankilian

@demonlibra

My extruder has 1/10th the number of steps-per-mm and my extruder speed change is quite a bit larger than yours.

Maybe your settings are making the extruder run VERY slowly and so the movement needs to be slow also.

Mine:

M92 X100.00 Y100.00 Z100.00 E91.00                      ; set steps per mm
M566 X1200.00 Y1200.00 Z1200.00 E1200.00                ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E1200.00             ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z1000.00 E1000.00                ; set accelerations (mm/s^2)

Yours:

M92 X80 Y80 Z400 E923                        ; set steps per mm
M205 X15 Y15 Z1 E12                          ; set max instantaneous speed change (mm/sec) 
M203 X12000 Y12000 Z1800 E2400               ; set maximum speeds (mm/min)
M201 X2000 Y2000 Z50 E2000                   ; set accelerations (mm/s^2)

demonlibra

I changed length of extrusion from 1 to 0.001 mm but situation is the same. Get slow down after movement with extrusion and before movement without extrusion.

You can try to run this code without filament for check:

G28
T0
M83
M302 P1

while 1=1
  G1 X80 E0.001 F9000
  ;freeze
  G1 X120   F9000
  G1 X80 E0.001 F9000
  ;freeze
  G1 X20    F9000

demonlibra

Looks like the problem resolved in 3.4 beta