hey all!
Today I finished installing my Duet3D WiFi, and there is something that caught my eye.
With my old CR10s Motherboard while printing, I used nozzle wipe in Simplify3D without any problems.
(I use 1mm of nozzle wipe every layer on the outer wall) but now with the Duet3D motherboard, it wipes the nozzle at Slow Motion speeds... all other speeds are as normal printing goes very well, except the nozzle wipe during printing.
Anyone who has a clue how this can happen?
Thanks, I'm trying the new settings now.
I'll keep you guys updated 
I think that it has something to do with the extruder.
The Z rods are nearly perfect. I double checked it multiple times.
The printer is a little bit modified, original it was a CR10S.
I use the ordinary lead screws that come with the CR10S, 8mm. (already replaced the original ones with better ones)(The old were not straight).
I have done PID Tuning, Temperature is rock solid.
I have literally no idea if the speed or jerk settings are oke
Layer height is always 0.2 or 0.15
Dual Z-axis moves pretty smooth, I have installed anti-backlash nuts.
See photo for the arrangement.
Question, can anyone scan through my printer config file for any weird settings? I have the CR10S.
For convenience, I will paste my Config file.
; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Wed Aug 29 2018 23:11:26 GMT+0200 (Midden-Europese zomertijd)
; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M555 P1 ; Set firmware compatibility to look like RepRapFirmare
;M572 D0 S0.6 ; Pressure advance
; Network
M550 POptimus Prime ; Set machine name
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet
; Drives
M569 P0 S1 ; Drive 0 X goes forwards
M569 P1 S1 ; Drive 1 Y goes forwards
M569 P2 S0 ; Drive 2 1Z goes forwards
M569 P3 S1 ; Drive 3 E0 goes forwards
M569 P4 S0 ; Drive 4 2Z
M584 X0 Y1 Z2:4 U4 E3 P3 ; Driver remapping
M671 X-31:330 Y0:0 S1.0
M350 X16 Y16 Z16:16 U16 E16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z400:400 E97.2 U400 ; Set steps per mm
M566 X400 Y400 Z200:200 U200 E800 ; Set maximum instantaneous speed changes (mm/min)
M203 X4000 Y4000 Z1000:1000 U1000 E8000 ; Set maximum speeds (mm/min)
M201 X600 Y600 Z400:400 U400 E800 ; Set accelerations (mm/s^2)
M906 X800 Y800 Z800:800 U800 I0 ; Set motor currents (mA) and motor idle factor in per cent
M906 E1000 I50
M84 S20 ; Set idle timeout
; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X300 Y300 Z400 S0 ; Set axis maxima
; Endstops
M574 X1 Y1 S1 ; Set active high endstops
M574 Z1 S2 ; Define Z to use Probe. Home to Min
; Z-Probe
M558 P9 H20 F300 T4000 X0 Y0 Z1 ; Disable Z probe but set dive height, probe speed and travel speed
M557 X20:280 Y20:280 S20 ; Define mesh grid
G31 P25 X-39 Y0 Z1.15 ; Z probe trigger value, offset in relation to nozzle. And trigger height adjustment
;BL-Touch / Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M307 H1 A247.4, C85.3, D2.6 S1 ; Set Pid Tuning for Hotend
M305 P0 T100000 B4088 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S90 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4088 C0 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C
M307 H3 A-1 C-1 D-1 ; Disable the 3th Heater to free up PWM channel
; Fans
M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T50 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45 ; 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 Y-7 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
; Custom settings are not configured
Hi, Can anyone please tell me what this is causing?
I recently fixed my Z axis Leadscrews and installed antibacklash nuts, Because I thought this was the problem.
Now I'm starting to think its an extruded problem, but it makes no sense because normally under extrusion happens randomly when the printer decides when it feels under exstrudy. but this seems not random it is reoccurring every 8 layers or so.
searched for Z axis backlash, but there is nothing to be found, how do I fix this 
haha okay thanks for giving it a name, now I can investigate more.
yeah, I'm sure.
of course, it deviates a little bit but the variables are almost the same every time.
it is reoccurring in the way I described it. really strange to be honest.
Same occurs when I try to level the nozzle to the bed with a piece of paper, in steps of 0.05mm down until it makes contact with the paper. but when I go up, it takes more 0.05mm steps up, then what it did while going down.
Down
0.00mm - no contact
-0.05mm - contact
Up
-0.05mm - contact
0.00 - contact
0.05mm - still contact
0.10mm - no more contact with the paper
that's also occurring
hi,
The bed is off, and probe speed is super slow, tried those already.
could it be that it has something to do with Zrods that are not straight?
or something else? maybe stepper motors not accurate enough?