Posts made by LichtiMC

Thanks for your suggestion.
With "M106 P2 S0" in config the laser is still on for half a second or so.

So I guess there's no possibility to set the pin to "default off" at start.

Hey,

after some time I updated my firmware to 3.2-beta1 and since then my "fan2" pin is always on at the start of the RepRapFirmware. I have a Duet 2 Ethernet board.
This probably would'nt be a problem if a fan had been connected, but I have a laser connected.

With only M950 F2 C"nil" command there is no change in this behaviour, but I managed to switch it off instantly after start with the command M950 P0 C"fan2".

But I'd rather have it being switched off from the beginning as it was before the update for security reasons.

Do you know what suddenly causes this behaviour? Should'nt be all pins switched off by default?

Thanks

@Phaedrux said in Volumetric extrusion = massive overextrusion!:

There's no reason you can't use firmware retraction when selecting reprap flavour in Cura. I do.

I can't find a setting in cura that outputs G10/G11 when g-code-flavour reprap is set. Could you tell me where to set this option?

@bot said in Volumetric extrusion = massive overextrusion!:

I've never used volumetric extrusion before, but do you have to set the E steps per mm to be in volumetric units?

Can't imagine this is the case...

Thank you for your answers. I will definitely try the suggestions and reply, but for now I have to solve another issue first:
https://forum.duet3d.com/topic/14954/volumetric-extrusion-massive-overextrusion

I have a CoreXY-Printer with duet ethernet and use volumetric extrusion because with Cura and g-code flavor setting "marlin (volumetric)" I can use the firmware retraction feature of RRF (3.01-RC3).

But even though I configured...
M200 D1.75 ; set all extruder filament diameters to 1.75mm
... I get an overextrusion of more than 2 times the wall thickness setting (0.4 - actual thickness: about 1mm)

My e-steps are configured correctly and now I don't know anymore where to look for the error.

Here my duet config.g:

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sat Mar 14 2020 22:42:45 GMT+0100 (Mitteleuropäische Normalzeit)

; General preferences
M111 S1                                                ; Debugging on/off 0/1
G21                                                    ; Work in millimetres
G90                                                    ; send absolute coordinates...
;M83                                                   ; ...but relative extruder moves, oder? NO: https://duet3d.com/forum/thread.php?id=1190, https://betrue3d.dk/category/duet-wifi/page/2/
M550 P"Davids Ender-4"                                 ; set printer name
M667 S1                                                ; select CoreXY mode

; Network
M552 P0.0.0.0 S1                                       ; enable network and acquire dynamic address via DHCP
M586 P0 S1                                             ; enable HTTP
M586 P1 S0                                             ; disable FTP
M586 P2 S0                                             ; disable Telnet

; Drives
M569 P0 S1                                             ; physical drive 0 goes backwards
M569 P1 S1                                             ; physical drive 1 goes backwards
M569 P2 S0                                             ; physical drive 2 goes forwards
M569 P3 S0                                             ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3                                       ; set drive mapping
M350 X16 Y16 Z16 E16 I1                                ; configure microstepping with interpolation
M92 X80.24 Y80.24 Z400.00 E96.295                      ; set steps per mm
M566 X900.00 Y900.00 Z20.00 E600.00                    ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z480.00 E1200.00              ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z100.00 E250.00                 ; set accelerations (mm/s^2)
M906 X800 Y800 Z500 E800 I50                           ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                                ; Set idle timeout

; Axis Limits
M208 X-4 Y-7 Z0 S1                                     ; set axis minima
M208 X215 Y215 Z300 S0                                 ; set axis maxima

; Endstops
M574 X1 S1 P"!xstop"                                   ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop"                                    ; configure active-high endstop for low end on Y via pin ystop
M574 Z1 S1 P"zstop"                                     ; configure active-high endstop for low end on Z via pin zstop

; Z-Probe
M558 P0 H2 F120 T7200                                  ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:200 Y15:175 S20                                ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4092         ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0                                  ; create bed heater output on bedheat and map it to sensor 0
M143 H0 S120                                           ; set temperature limit for heater 0 to 120C
M307 H0 B0 S1.00                                       ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                                ; map heated bed to heater 0
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                                   ; create nozzle heater output on e0heat and map it to sensor 1
M143 H1 S285                                           ; set temperature limit for heater 1 to 285C
M307 H1 B0 S1.00                                       ; disable bang-bang mode for heater  and set PWM limit

; Fans
M950 F0 C"fan0" Q500                                   ; create fan 0 on pin fan0 and set its frequency
M106 P0 C"Part-Fan" S0 H-1                             ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                                   ; create fan 1 on pin fan1 and set its frequency
M106 P1 C"Hotend-Fan" S1 H1 T45                        ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"fan2" Q500                                   ; create fan 2 on pin fan2 and set its frequency
M106 P2 S0 H1 T45                                      ; set fan 2 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0                                       ; define tool 0
G10 P0 X0 Y0 Z0                                        ; set tool 0 axis offsets
G10 P0 R0 S0                                           ; set initial tool 0 active and standby temperatures to 0C
M200 D1.75                                             ; set all extruder filament diameters to 1.75mm

; Custom settings:
M572 D0 S0.3

; Miscellaneous
T0                                                     ; select first tool

And here my Cura "Start G-code":

G21 ; metric values, G-code flavor Marlin (Volumetric) for Firmware Retraction...
G90 ; absolute positioning
M82 ; set extruder to absolute mode
G28 ; home all axes
G1 X0 Y10 Z0.5 F3000 ; get ready to prime
G92 E0 ; reset extrusion distance
G1 X160 E20 F600 ; prime nozzle

May anyone can guide me to a solution for this problem.
Thank you.

Thank you for your answer.

So you think a pa-value of S2.0 is normal even though the instructions imply that it should work with 0.1 for my tube length?

I have an CoreXY Printer and following e-jerk values activated: M566 X900.00 Y900.00 Z12.00 E120.00
How would I have to adjust the values to get more "normal" speeds?

I have a bowden extruder with the tube about 400mm long.
So it's suggested to use M572 D0 S0.1 as pressure advance value.

I did the testprint as instructed on the wiki pake about pressure advance and did'nt get a result when playing with values from 0.1 - 1.

Then just for fun I tried to use 2.0 and got a beautiful finished z-seam.
Of course the printer is extremely slow as it's written in the wiki.

Does anybody have a clue what's going on here? Is there another incorrectly set option that could cause this situation to occur?

Thank you very much!