No extrusion in some cases

Nxt-1

@deckingman said in No extrusion in some cases:

@Nxt-1 Try my suggestion of putting M83 in the slicer start code. This will override any prior M82 command from any other source as it will be executed just before the print starts. If necessary edit your 20mmcube file and put M83 just before the first G1 move. If that works, then you can work backwards from there to isolate where the other M82 is coming from.

Adding M83 in the slicer start code would result in the same as adding manually, like I did. This would be my fallback solution, but it does not treat the cause, just mitigates the effect. Therefore, I am going digging in the /sys files for a rogue M82 in the 1st place . I think you are right, going backwards to isolate the M82 might the best way to go about.

deckingman

@Nxt-1 It could be that absolute extrusion is the default setting if no M83 is present. So it may not be that there is an M82 anywhere, merely that that there is not an M83 in config.g.

My point about putting M83 in the slicer start code as well, is that it would act as a fail safe in case at any time in the future something changed in another file and an M82 got added by accident.

IMO, if a slicer creates a file with relative extrusion commands, then it should also add an M83 at the very start. Conversely if the slicer is set to create absolute extrusion commands, then it should also add an M82 command. But that's clearly not how Kiss Slicer works.

droftarts

@Nxt-1 Do you have an M555 command in your config.g? This sets the firmware compatibility. I'm not sure, but I think if it's set to Marlin (M555 P2), it sets absolute extrusion. We should have probably asked earlier, but posting your config.g would be a sensible thing to do, so we can see if there's anything out of the ordinary. I don't see the issue with adding M83 in config.g, or at the beginning of a print file.

Ian

Nxt-1

@deckingman I don't know why this suddenly became an issue when changing to the Super Volcano. I did not find a missing M83 after a M82 in any of files (it was already in my config file). I agree with the logic that slicer output meant for relative moves, should specify a M83 command in it's output.

Thanks

Phaedrux

@droftarts said in No extrusion in some cases:

I'm not sure, but I think if it's set to Marlin (M555 P2), it sets absolute extrusion.

I believe the marlin compatibility in this case refers to the responses given for acknowledgements over USB comms.

Nxt-1

@droftarts Here are the contents off my config file`(I should have know, thou shall post config files ) :
There indeed is a M555 P2 in there, I don't know why or how it sneaked in there. Though, there is a M83 a couple of line below that.

; Configuration file for Deltex

; ===================== GENERAL SETTINGS =====================
M111 S0                             							; Debug off
M550 PDeltex - Super Volcano								; Machine name and Netbios name
M555 P2                                   						; Repetier Output
M575 P1 B57600 S1                          						; PanelDue Comm Setup
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xEA 							; MAC Address
M552 S1											; Enable WiFi
M586 P1 S0										; Disable FTP
M586 P2 S0										; Disable Telnet

; ===================== MOVEMENT SETTINGS ====================
G21                                 							; Set Units to Millimeters
G90                            								; Set to Absolute Positioning
M83                                	 						; Set extruder to relative mode

M584 X0 Y1 Z2 U4 E3									; Assign drives to each motor
M569 P0 S0										; Drive 0 (X) goes backwards
M569 P1 S0										; Drive 1 (Y) goes backwards
M569 P2 S0										; Drive 2 (Z) goes backwards
M569 P3 S0										; Drive 3 (E) goes backwards
M569 P4 S0										; Drive 4 (4th) goes backwards
M574 X2 Y2 Z2 U2 S1									; Endstop configuration (all endstops at high end, active high)
M665 L500.000:500.000:500.000:224.000 R235.965 H605.488 B200.0 X0.277 Y0.094 Z0.000	; Diagonal rod length, delta radius, printable radius and homed height
M669 K3 X0 Y0										; Location of the 4th axis tower
M666 X1.847 Y2.531 Z-4.378 A0.00 B0.00							; Endstop adjustments
M350 X16 Y16 Z16 E16 U16 I1    								; Set 16x microstepping with interpolation
M92 X200 Y200 Z200 U80 E414								; Set steps/mm
M906 X2050 Y2050 Z2050 U900 E700 I60							; Set motor currents (mA) and increase idle current to 60%
M201 X2000 Y2000 Z2000 U2000 E5000							; Accelerations (mm/s^2)
M203 X10000 Y10000 Z10000 U10000 E20000							; Maximum speeds (mm/min)
M566 X400 Y400 Z400 U400 E2000 P1							; Maximum instant speed changes (mm/min)

; ================ HEATING AND COOLING SETTINGS ==============
; Thermistors
M305 S"Bed" P0 B3950									; Bed temperature sensor parameters
M305 S"Hotend" P1 B4725 C7.060000e-8							; Hotend temperature sensor parameters 
M305 S"Water" P2 X2 T10000 B3950							; Water temperature sensor parameters
M570 S180										; Configure heater fault detection, allow it 180 seconds
M307 H0 A408.0 C897.0 D2.1 S1.00 V24.2 B0						; Set bed heating process parameters and use PID at 10Hz
M307 H1 A1383.6 C750.5 D6.0 S1.00 V24.0 B0						; Set hotend heating process parameters and use PID

M143 H0 S200										; Set maximum bed temperature to 200

; Fans
M106 P0 I0 H-1 										; disable thermostatic mode for fan 0 (part cooling)
M106 P1 S255 T45 H1									; enable thermostatic mode for fan 1 (hotend)

; ====================== TOOL SETTINGS =======================
M563 P0 D0 H1 S"Hotend"              							; Define hotend tool
G10 P0 S0 R0                        							; Set tool 0 operating and standby temperatures
M207 S0	R0 F3000 T1200 Z0								; Set default retraction settings

M563 P1 S"Water" H2									; Set up an extra tool to display heater temperature

; =================== CALIBRATION SETTINGS ===================
M558 P8 F1200 H3 R0.4 T10000 A10 S0.04							; Z Probe type 8, input 0, invert no, dive height 3.0mm, probe speed 1200mm/min, travel speed 10000mm/min, recovery time 0.40 sec, heaters normal, max taps 5, max diff 0.04
G31 X0 Y0 Z-0.15 P100  		        						; Set the zprobe height and threshold (more negative values translate into a higher nozzle)
M557 R200 P21										; Define probing mesh grid


M912 P0 S-12.35										; Set temperature offset for MCU
T0											; Select hot end
M501											; Load settings from config-override.g

``

Nxt-1

Although I believe @deckingman is right, and it only influences USB comms. (sauce)

droftarts

@Nxt-1 Okay, so not M555! I suppose I should have also asked earlier... what firmware version and what Duet board are you running? M115 will show everything. Also, anything in config_override.g?

Ian

dc42

@Phaedrux said in No extrusion in some cases:

@droftarts said in No extrusion in some cases:

I'm not sure, but I think if it's set to Marlin (M555 P2), it sets absolute extrusion.

I believe the marlin compatibility in this case refers to the responses given for acknowledgements over USB comms.

Correct.

Dougal1957

can you show the firmware type settings you have in Kiss

and also check and post the g-code pre-fix screen as well

Mine are posted above and if set correctly does insert a M83 in the start code.

Firmware type should be set to 5D - Relative E

HTH at least a little

Nxt-1

@Dougal1957 My firmwaretype is set to 5D-Relative E in KISS, prefix was empty before. I now put a few commands in there:

G21                            ; Set Units to Millimeters
G90                            ; Set to Absolute Positioning
M83                            ; Set extruder to relative mode

I do not see KISS putting an M83 in there by itself, which I would expect when set to relative E.

Dougal1957

@Nxt-1 I've been using kiss that long now I can't remember wether i did it myself or not but I think it did!

Solved No extrusion in some cases