nozzle an d heatbed reset while start printing

[Hanalei]

Hi,
got an new A20M since three days .
But my prints are not working because of the following issue.
When start the A20M will take all parameters from the gcode file .
In my special case
extruder temperature 240°C
heatbed 80°C
mixer 100%; 0%
I want to print with ABS in that special case.
So the A20m heats up to the dedicated temperatures and starts printing.
After start the temperature reset
Extruder to 215°C
heatbed to 55°C
and mixer to 50 %,50%
This happens every time and I tryed a few.
It doesnt matter if the gcode comes from Sd card or computer via USB.
At least I renewed the firmware but the issue remains the same.
Can anybody help me ?

[William]

Hi, may be related to the setting of cura,
Can you print using Repetier Host?

Or can provide specific videos

[Hanalei]

Hi William,
thank you for your reply.
That was the reason for faillure.
The printer doesn't work with the Cura Software.
I tried Cura 4.4 and new 4.5, with both the A20M won't work.
It would be fine to comunicate this issue in the quick start guide
,before anybody wasts a lot of time.

Michael

[Takoh]

"and mixer to 50 %,50%"

I have the same problem. I use Cura 4.5
It creates a lot of problems for me because, even when you switch back to "100%, 0%" on the printer, the settings don't take effect right away. So when it starts printing the object, there is a mix of colour at the bottom.

[William]

Hi, You can check if the start gcode contains m163
m164 instruction,
If it exists, you can delete it.

[Takoh]

I just wanted to mention, I upgraded yesterday to Cura 4.6 and all of these problems went away.
Also, you should check your flow settings after the update as it seems to have changed the way it works.
For cura 4.5 i had to use 140 flow ;o
For cura 4.6, 80 flow seems to work

[Takoh]

Hi, You can check if the start gcode contains m163
m164 instruction,
If it exists, you can delete it.

Here's the start gcode for cura 4.5

G28
G1 Z15 F300
M107
G90
M82
M104 S215
M140 S55
G92 E0
M109 S215
M107
M163 S0 P0.50
M163 S1 P0.50
M164 S4
G0 X10 Y20 F6000
G1 Z0.8
G1 F300 X200 E40
G1 F1200 Z2
G92 E0
G28

And the start gcode for cura 4.6
(Be careful if you have clips on your bed because they moved the purge line)

;GeeeTech A20M start script
G28 ;home
G90 ;absolute positioning
G1 X0 Y0 Z15 E0 F300 ;go to wait position
M140 S{material_bed_temperature_layer_0} ;set bed temp
M109 S{material_print_temperature_layer_0} ;set extruder temp and wait
G1 Z0.8 F200 ;set extruder height
G1 X220 Y0 E80 F1000 ;purge line
;end of start script