What kind of extruder do you have on there? It's being limited to 20 mm/s. If it's a large diameter nozzle and 1.75mm filament, it might be hitting that limit?

I think the newer firmware switches to spreadcycle to maintain torque at higher speeds.

Hey there. Just wanted to note that while making a new setup for moving to RRF3.x the configurator wouldn't let me go through with my machine as a homed height of 877.95 is apparently just too tall.

It'd be nicer if it warned you and "are you really sure your printer is this weird?" instead of having to set it to a wrong value and manually fix it later.

That was indeed it. Thanks

That was indeed it. Thanks

Hey there. Just wanted to note that while making a new setup for moving to RRF3.x the configurator wouldn't let me go through with my machine as a homed height of 877.95 is apparently just too tall.

It'd be nicer if it warned you and "are you really sure your printer is this weird?" instead of having to set it to a wrong value and manually fix it later.

Thanks. That's my desired behaviour for now anyways

Hello there. I'm setting up a simple runout-detection for my printer, and was reading through the duet docs. I've got M591 correctly detecting the presence of filament, however what happens when filament runs out? Does it run pause.g, or some other file?

Using a duet maestro running 2.03beta2 (2019-02-16b1)

Oh right.
@Mdev if you can verify the following:

Running:

M574 X2
M574

returns:

Endstop configuration: X: high end active high switch, Y: low end active high switch, Z: low end active high switch

To help with this problem a bit (I've been helping out in #reprap on freenode)

This is the printer
This is the latest complete SD image for the older firmware

EDIT:

Here's the config.g and homex.g

CONFIG:

; Configuration file for RepRap Huxley Duo
; RepRapPro Ltd
;
; Copy this file to config.g if you have an Huxley Duo
; If you are updating a config.g that you already have you
; may wish to go through it and this file checking what you
; want to keep from your old file.
; 
; For G-code definitions, see http://reprap.org/wiki/G-code
; 
M564 H0
M574 X2
M111 S0                             ; Debug off
M550 PRepRapPro Huxley Duo          ; Machine name (can be anything you like). With DHCP enabled connect to (example) http://reprapprohuxleyduo (machine name with no spaces).
M551 Preprap                        ; Machine password (currently not used)
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0x14 ; MAC Address
;M552 P0.0.0.0                       ; Un-comment for DHCPM552 S1 P0.0.0.0                  ; IP address, comment for DHCP
M553 P255.255.255.0                 ; Netmask
M554 P192.168.1.1                   ; Gateway, comment for DHCP
M555 P2                             ; Set output to look like Marlin
G21                                 ; Work in millimetres
G90                                 ; Send absolute corrdinates...
M83                                 ; ...but relative extruder moves
M906 X700 Y700 Z600 E800            ; Set motor currents (mA)
M305 P0 R4700 T100000               ; Set the heated bed thermistor resistance at 25C, series resistor to 4K7
M305 P1 R4700                       ; Set the hot end thermistor series resistor to 4K7
M569 P0 S1                          ; Reverse the X motor
M569 P3 S0                          ; Reverse the extruder motor (T0)
M569 P4 S0                          ; Reverse the extruder motor (T1)
M92 E660                            ; Set extruder steps per mm
M558 P2                             ; Use a modulated Z probe
G31 Z0.8 P600                       ; Set the probe height and threshold (deliberately too high to avoid bed crashes on initial setup)
M556 S45 X0 Y0 Z0                   ; Put your axis compensation here
M201 X750 Y750 Z15 E750             ; Accelerations (mm/s^2)  
M203 X15000 Y15000 Z300 E3600       ; Maximum speeds (mm/min)
M566 X200 Y200 Z30 E20              ; Minimum speeds mm/minute    
M563 P0 D0 H1                       ; Define tool 0
G10 P0 S-273 R-273                  ; Set tool 0 operating and standby temperatures
;M563 P1 D1 H2                       ; Define tool 1, uncomment if you have a dual colour upgrade
;G10 P1 X19 S-273 R-273              ; Set tool 1 operating and standby temperatures, uncomment if you have a dual colour upgrade

HOMEX

M574 X2

G91               ; set movement to relative mode
G1 Z5 F200        ; move z up 5mm
G90               ; set movement to absolute mode
M558 P1           ; set probe to unmodulated mode
G1 X-140 F2000 H2 ; home X
G92 X0            ; set position to X=0
G1 X3 F200        ; move axis away from X=0
G1 X-5 F200 H2    ; home again, slower
G92 X0            ; set position to X=0
G1 X0 F2000       ; ADJUST the X value to put the nozzle on the edge of the bed
G92 X0            ; set position to X=0
M558 P2           ; set probe to modulated mode
G91               ; set movement to relative mode
G1 Z-5 F200       ; move Z down 5mm
G90               ; set movement to absolute mode

@paboman Did it sound somewhat like this?
https://www.youtube.com/watch?v=8yGIwlT5qc8

I wasn't aware of the diagnostics output, so I can't say if there were any hiccups, but I'll give it a look if it happens again. The nozzle didn't hit anything, there were no signs of that on the print. I suspected it did on the second snap, but no melted blobs anywhere suggest it did.

Versions:

Firmware Name:          RepRapFirmware for Duet 2 Maestro
Firmware Electronics:	Duet Maestro 1.0
Firmware Version:	2.02RC4(RTOS) (2018-11-18b5)
Web Interface Version:	1.22.5

Specs:

• bigDelta custom printer
• flying extruder
• ~750mm print height
• 400mm print diameter
• 24v
• rattm 17hs8401 1.8deg
  • run at 1.3A
  • 16x interpolated

Config:

; Configuration file for Duet Maestro (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Sun Oct 07 2018 15:48:41 GMT+0200 (CEST)

; General preferences
G90                             ; Send absolute coordinates...
M83                             ; ...but relative extruder moves
M665 R258.483 L495 B200 H877.95 ; Set delta radius, diagonal rod length, printable radius and homed height 
M666 X-1.66 Y2.69 Z-1.02        ; Put your endstop adjustments here, or let auto calibration find them

; Network
M550 PBigDelta                  ; Set machine name
M551 Pxxx                 ; Set password
M552 P0.0.0.0 S1                ; Enable network and acquire dynamic address via DHCP
M586 P0 S1                      ; Enable HTTP
M586 P1 S1                      ; Enable FTP
M586 P2 S0                      ; Disable Telnet

; Drives
M569 P0 S0                      ; Drive 0 goes forwards
M569 P1 S0                      ; Drive 1 goes forwards
M569 P2 S0 	                ; Drive 2 goes forwards
M569 P3 S1	                ; Drive 3 goes backwards
M92 X100 Y100 Z100 E2567        ; Set steps per mm
M566 X1800 Y1800 Z1800 E1000   	; Set maximum instantaneous speed changes (mm/min)
M203 X18000 Y18000 Z18000 E2500 ; Set maximum speeds (mm/min)
M201 X8000 Y8000 Z8000 E1000     ; Set accelerations (mm/s^2)
M906 X1300 Y1300 Z1300 E500 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30                         ; Set idle timeout
M350 X16 Y16 Z16 E4 I1		; Set microstepping with interpolation
M572 D0 S0.07			; Set 0.07 seconds of pressure advance

; Axis Limits
M208 Z0 S1                      ; Set minimum Z

; Endstops
M574 X2 Y2 Z2 S1                ; Set active high endstops

; Z-Probe
M558 P5 H3 F120 T21000  	; Set Z probe type to switch and the dive height + speeds
G31 P500 X0 Y0 Z30.323	        ; Set Z probe trigger value, offset and trigger height
M557 R200 S20                   ; Define mesh grid

; Heaters
M140 H-1                        ; Disable heated bed
M305 P1 T100000 B4138 C0 R2200  ; Set thermistor + ADC parameters for heater 1
M143 H1 S280                    ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S0 I0 F30000 H-1 C"Partfan"	; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F30000 H-1 C"PCBfan"    ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S1 I0 F100 H1 T45 C"Coldfan"  	; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1                   ; 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

; Automatic saving after power loss is not enabled

M207 S1.3 F1500 Z0.2 T500  	; Set up firmware retracts

; Miscellaneous
G29 S1				; Load height-map
M501                            ; Load saved parameters from non-volatile memory
T0                              ; Select first tool

Hey there. I'd really love if there was an option to set specific lift and un-lift feedrates for zlifts, as I like to move away fast, and lower the print-head slower, to avoid over-shoot.

Something like:

M207 Snnn Fnnn Tnnn Znnn Lnnn Unnn

With L being lift feedrate, and U being un-lift feedrate.

Hmm, okay. I'll keep hunting the mysterious layershifts then

Okay, this is even more confusing, as I don't currently have that feature enabled. I've upgraded to RC4 from RC2

We'll see if that helps.