@Phaedrux
Thanks for reply. I'm using below.

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Mar 30 2020

I tried testing two DWC version such as DuetWebControl-SD-3.1.1 and also old version but same alert happens. I changed below.

M92 X106.67 Y106.67 Z800.00 E984.00:984.00:984.00:984.00 ; set steps per mm
M566 X1200.00 Y1200.00 Z100.00 E3600.00:3600.00:E3600.00:3600.00 ; set maximum instantaneous speed changes (mm/min) jerk
M203 X36000.00 Y36000.00 Z2400.00 E3600.00:3600.00:3600.00:3600.00 ; set maximum speeds (mm/min)
M201 X3000.00 Y3000.00 Z200.00 E3600.00:3600.00:3600.00:3600.00 ; set accelerations (mm/s^2)
M906 X1500 Y1500 Z1500 E450:450:450:450 I30 ; set motor currents (mA) and motor idle factor in per cent

I largely expanded maximum speed and acceleration and jerk and then removed decimal numbers(ex : M203 X36000 removed .00 now returned as 36000.00 as above but still same).

Tried remove M552 S1 then it was not connected network so revived.

Machine is working if I press "Home All" button but cannot edit system file as it refreshes continuously.

Hi,

DWC shows below alert blinking every around 0.1seconds and then becomes uncontrollable status though it's connected(buttons are working but refreshing every 0.1seconds due to reconnection). It happened after I restarted the system after changing config.g file. Tried to use various method to fix but still not working.

alert : connection lost. attempting reconnect.
Console : Connection interrupted, attempting to reconnect... Unexpected token a in JSON at posion 560

Could anyone help to solve this problem?

I'm using DUET2WIFI with DUEX5 for 4 extruders for 4color mixed nozzle and I just found there is some error on M567 according to M588(diagnose) but I don't know what's error.

Configuration is as follows.

; Configuration file for Duet WiFi (firmware version 2.03)
; General preferences
G90 ; send absolute coordinates...
M83

; Network
M552 S1
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet
; ...but relative extruder moves

; Drives
M569 P0 S0 ; physical drive 0 goes forwards
M569 P1 S0 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S0 ; physical drive 3 goes forwards
M569 P4 S0 ; physical drive 4 goes forwards
M569 P5 S1 ; physical drive 5 goes forwards
M569 P6 S1 ; physical drive 6 goes forwards
M569 P7 S1 ; physical drive 7 goes forwards
M569 P8 S1 ; physical drive 8 goes forwards
M569 P9 S0 ; physical drive 9 goes forwards

M584 X9 Y2 Z0:1:3:4 E5:6:7:8 ; set drive mapping
M350 X16 Y16 Z16 E8:8:8:8 I1 ; configure microstepping with interpolation
M92 X106.67 Y106.67 Z800.00 E984.00:984.00:984.00:984.00 ; set steps per mm
M566 X1200.00 Y1200.00 Z100.00 E3600.00:3600.00:E3600.00:3600.00 ; set maximum instantaneous speed changes (mm/min) jerk
M203 X36000.00 Y36000.00 Z2400.00 E3600.00:3600.00:3600.00:3600.00 ; set maximum speeds (mm/min)
M201 X3000.00 Y3000.00 Z200.00 E3600.00:3600.00:3600.00:3600.00 ; set accelerations (mm/s^2)
M906 X1500 Y1500 Z1500 E450:450:450:450 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X450 Y450 Z650 S0 ; set axis maxima

; Endstops
M574 X1 Y1 S1 ; set active high endstops

; Z-Probe

M574 Z1 S2 ; set endstops controlled by probe
M307 H7 A-1 C-1 D-1 ; disable heater on PWM channel for BLTouch
;M558 P9 F100 H5 R0.2 T6000 A2 B1 ; set Z probe type to bltouch and the dive height + speeds
M558 P9 X0 Y0 Z1 F300 T6000 H5
G31 P25 X16 Y10 Z3.95 ; set Z probe trigger value, offset and trigger height
M557 X50:400 Y50:400 S50 ; define mesh grid

M280 P7 S160
M669 K0 ; CARTESIAN
M671 X-70:545:545:-70 Y-80:-80:615:615 S10

; Heaters

M305 P0 T100000 B3950 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M305 P1 T100000 B3950 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans

M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off

;Sensor

;M591 D0 P2 C3 S1
;M591 D1 P2 C4 S1
;M591 D2 P2 C5 S1
;M591 D3 P2 C6 S1

; 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
M568 P0 S1
M567 P0 E0.94:0.02:0.02:0.02

M563 P1 D1 H1 F0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C
M568 P1 S1
M567 P1 E0.02:0.94:0.02:0.02

M563 P2 D2 H1 F0 ; define tool 0
G10 P2 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P2 R0 S0
M568 P2 S1
M567 P2 E0.02:0.02:0.94:0.02 ; set initial tool 0 active and standby temperatures to 0C

M563 P3 D3 H1 F0 ; define tool 1
G10 P3 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P3 R0 S0
M568 P3 S1
M567 P3 E0.02:0.02:0.02:0.94

; Miscellaneous
M501 ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

Hi,

I upgraded firmware and webserver to 1.21 and equipped BLTOUCH at PWM5 of DEUX5 . But before probing homing-z fails with the reason of "z-probe already triggered at start of probing move".

Could somebody advise me whether my setting is something wrong?

My machine is self-made cartesian size of 600 x 850 x 700 with DUETWIFI and DUEX5, and Diamond 5color nozzle set and settings are as follows.

//Homeall.g file
G28 XY ;Home XY
M561 ; Clear any bed transform that might be in place

G30 ; Do a single probe
;M375 P"bareplate.csv" ; Load my custom heightmap. Otherwise use
;G29 S1 ;
G90
G1 Z10 F6000 S2 ; Move Z to 20

//homez.g file
G30 ; Do a single probe to home our Z axis
G90 ; Make sure we are in absolute mode
G1 Z10 F6000 S2 ; Rapidly move the Z axis to Z=10.

//config.g file
; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare
; Automatic saving after power loss is not enabled
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X580 Y800 Z700 S0 ; Set axis maxima

;disable heater7
M307 H7 A-1 C-1 D-1 ; disable heater7

; Endstops
M574 X1 Y1 S1 ; Set active high endstops
M574 Z1 S2 ;
M558 P9 X0 Y0 Z1 H5 F120 T6000 ; Set Z Probe to type Switch or Digital output where Z probe connector is used. Used for z only.;
G31 P50 X-32.5 Y0 Z2.5; Set Z probe trigger value, offset and trigger height
M557 X15:580 Y15:750 S25 ; Define mesh grid

; Drives
M569 P0 S0 ;
M569 P1 S1 ;
M569 P2 S1 ;
M569 P3 S0 ;
M569 P4 S1 ;
M569 P5 S1 ;
M569 P6 S1 ;
M569 P7 S1 ;
M569 P8 S1 ;
M569 P9 S1 ;

M584 X3:4 Y0 Z1:2 E5:6:7:8:9 ; Apply custom drive mapping
M350 X16 Y16 Z16 E16:16:16:16:16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z320 E421:421:421:421:421 ; Set steps per mm
M566 X900 Y900 Z12 E120:120:120:120:120 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200:1200:1200:1200:1200 ; Set maximum speeds (mm/min)
M201 X800 Y800 Z150 E250:250:250:250:250 ; Set accelerations (mm/s^2)
M906 X1400 Y1400 Z1680 E1000:1000:1000:1000:1000 I70 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Heaters
M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P2 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H2 S280 ; Set temperature limit for heater 1 to 280C

; tools
M563 P0 D0 H2
G10 P0 X0 Y0 Z0
G10 P0 R0 S0

M563 P1 D1 H2
G10 P1 X0 Y0 Z0
G10 P1 R0 S0

M563 P2 D2 H2
G10 P2 X0 Y0 Z0
G10 P2 R0 S0

M563 P3 D3 H2
G10 P3 X0 Y0 Z0
G10 P3 R0 S0

M563 P4 D4 H2
G10 P4 X0 Y0 Z0
G10 P4 R0 S0

; Fans
M106 PO S255
M106 P1 S1

//////////////////////////////

Above is my settings. I also set deployprobe.g and retractprobe.g files at sys folder. Should I set bed.g as well which is omitted on my sys folder?

Would appraciate for advise.

Thanks.

@David

Thanks your advise and tested the voltages with multimeter as follows.

Voltage when Jumper header on VIN : 28.3 / 28.3 / 28.3 / 15.6 / 0 (always-on / always-on / PWM0 / PWM1 / PWM2)
voltage when jumper header on 5V : 5.6 / 5.6 / 5.6 / 3.2 / 0
voltage from PSU : 28.3 (It should be 24volt but figures on multimeter 28.3)

Now I understand my PSU supplies some high voltage different from rated voltage and it made the fan out of order. In this case what can I do?

I think one option is just use 5Volt fan OR change PSU. Any other options?

In the meantime, can you advise why PWM2 on Duetwifi and all 5 PWM pins on DUEX5 shows 0 voltage, and shows 15.6volt on PWM1 on Duetwifi? PWM voltages varies depend on G-command in config.g file?

Thanks.

Thanks for advise and I now very suspect whether I misunderstand very basic thing of voltage. I connected 24volt fan to duetwifi always-on pin instead power supply as I had thought duetwifi board supply 24v DC. But searching the webs more carefully it seems Duetwifi supply 5volt for fan. Appreciate anybody confirm the supply voltage.

In the meantime, blower fan is working very well which is same voltage of 24volt and same maker, also my another smaller cooling fans which are also 24volt are working well connected at "always-on" pin. why only 50mm cooling fans are becomes out of order while others working well. This facts made me complex indeed but the other hand I feel satisfied it proves "short to ground" is not happens on the board.

Now I guess there should be over-current to the fan in order to supply Watt with very small voltage. The cooling fans had exactly worked around 2~3minutes and dead which means some extent of Watt was delivered to the fan for 2~3minutes and it makes current over-flow. If my guess is right, it means the blower fan and other smaller cooling fans are also dangerous to be dead unless I do not connect to the power supply directly which supply 24 volt.

Still in a complex as I cannot get spare fan due to holiday and just guess. HAHAHA.

Please forgive my poor knowledge and also appreciate for helps.

Thanks.

Hi,

Could anyone advise why cooling fan for always on become out of order only after using around 2~3 minutes. I wasted 3 fans continuously in a short time and trying to find reason but not easy with my short knowledge on electronics.

Had checked

voltage : 24v, the same as duetwifi
Fan Current : 0.1A (made by Pengda technology)
I extended around 1 meter with 1.5mm diameter wire to the cooling fan wire(around 1.2mm diameter)

I wonder whether there flows over-current due to wider wire extended?
or The fan which has 0.1A is not suitable to Duetwifi?
or Did I miss any of current setting?

Would appreciate for help.

Thanks. / JR OH

@Ian

Thanks your reply and I just put "T" command in the start gcode asf.
T0
G0 E8 F100
T1
G0 E8 F100
T2
G0 E8 F100
T3
G0 E8 F100
T4
G0 E8 F100

And my config.g is at top of this thread. Frankly say, I was so hard today due to needle was broken inside the diamond nozzle while I was picking up the needle inside the nozzle. It was very difficult to take it off from the nozzle finally succeeded by using magnetic and hexa-rod. But after then, fan was broken and just now waiting for coming fan which I ordered. I will revise a result after setting/testing.

I just assume the reason that, I did not put "T" command initially or the Geared extruders which I ordered together with Diamond hotend set was not tightened well. I rectified both already but not tested yet.

Thanks a lot sharing your precious time.

Dear Ian,

Thanks for the suggestion of brake motor. M'time I just realized that you are the person who gave me idea of multiple colour print with Diamond hotend and Duetwifi and I'm now carefully reading your articles on your website with much thanks but something difficult to understand for me as I'm new at multiple colour and python.

I guess it needed 3 gcode files of ("test.gcode" for source file, "output.gcode" for destination file, "temp.gcode" for temp file) in order to print Julia vase etc. But It's hard for me to divide the code on your articles of your website to 3files above and not sure where to set those 3 files on Slic3r.

I just guess these 3files save on my desktop and set the path(s) on "Print setting - Output options - Post-processing scripts" but not sure what to put on "Print setting - Output options - Output file - Output filename format".

I feel it's quite genius idea using script but it's hard for me to setting, so I'd like to ask something about that as follows.

1. Could you e-mail for those 3 files, or advise divisions of 3 files on your article?
my e-mail : jroh09@gmail.com

2. Could you advise correct setting of Slic3r to apply those 3 gcode files?

End.

Thanks a lot.

Dear Mr. Ian and David,

Firstly Merry X-mas and wish you and your family's much good health next year!

Thanks for your advises and I'm testing and testing of movement. Luckily It works well without twisting upto max Z-axis and microsteps also works well though needed more test. But unluckily bed drops when power down. So It will be quite hard job watching power always. HAHAHA.

Let me report further problems if happens.

Thanks

Dear Deckingman,

Much appreciate for your advise. I now fully understand steep helix possibly becomes problem and will be careful next time when choose screw. It's so regretful but no choice but to pray to work well as I already spilt water.

Thanks.