Posts made by linuxinstalled

TLDR: there was a problem between the probe side connector of the cable and the actual electrical connections to the probe where the connector is received

The second probe arrived today and I used its cable to if the new probe would function. After plugging it in, the probe started up and ran its self test. I had not seen this behavior with the prior cable.

Attaching the prior cable again, I connected its end to the new probe, with no response whatsoever.

The reason I am inclined to believe it was on the connector that attached to the probe itself was that I was able to continuity test each wire individually, each coming back with a positive connection. What I didn't test was physically stabbing a wire into the front of the connector to see if the connection there was working.

Instead, my continuity testing was done on the exposed metal parts of the pins just on the back of the connector.

After testing, I now have 2 fully working BL Touch modules, and 1 good cable haha.

Thank you again to all of you for your suggestions and help. Because of you, I was literally able to just wire the new probe up and instantly have it working when it arrived. I also greatly appreciate the crimping tips, which I used this time around on the new cable.

@fcwilt I came looking for advice on a BLTouch and have left with some more knowledge on how to use my crimpers haha. Thank you very much for your description of the re-crimping on the insulation. This will be a tool in my mental tool box

@fcwilt Thank you for the suggestion on the crimper! Yes, I actually have a IWISS crimper for the Molex KK type crimps (the kind used for the IO pins on this duet board), and used it for this cable. I could definitely go back and retry it, but I am not sure if much will change since I was able to verify proper continuity on all pins from a variety of cable positions... If all else fails, it won't hurt I really appreciate you verifying that my wires were in the correct spot. Extra eyes are always a good thing.

I have not read about the adjustment screw and will look into that shortly.

Yes, I have tried with IO pin 5 and 7, changing the configs appropriately to no avail sadly.

Warmly,
Eric

As an update, I have ordered a second BLTouch to make sure it's not just a dead-on-arrival issue. I will keep posted. Thank you again to all who have posted suggestions. I really appreciate your additional eyes.

@Veti I have just continuity tested all 5 wires and confirmed their connections.

Hey Frederick,

Thanks for your reply!

Running the M98 P"config.g" returns no errors.

Thank you for the explanation on what the wires do, I actually had no idea as far as their functions. I wired it according to the guide here: Duet 3 BLTouch Guide

Here is a link to the picture of my wiring.

I tied the blue and black wires together on the same pin because the table defines them both as ground. Is this table potentially out of spec?

Hello, I recently installed a BLTouch 3.1 on my CR 10 controlled with a Duet 3 6HC. I have double checked the wiring harness, and 5 volts is being pushed all the way to the end, right where the BLTouch connects. I have tried configurations for IO Pin 7, and IO Pin 5, but to no avail. Because this is a first install, I do not have any previous data of the sensor working, or not.

When the probe is unplugged from the wire, the z-probe out on the dashboard for DWC indicates 1000. When it is plugged in, the reading is 0.

I have tried manual "M280 P0 S10" and "M280 P0 S90" commands, but there was no change. I think I am missing something.

Here is a copy of my config.g:

; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed Feb 17 2021 16:50:37 GMT-0700 (Mountain Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"CR 10" ; set printer name

; Network
M552 P192.168.0.99 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.0.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0.0 S0 ; physical drive 0.0 goes backwards
M569 P0.1 S0 ; physical drive 0.1 goes backwards
M569 P0.2 S0 ; physical drive 0.2 goes backwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M584 X0.0 Y0.1 Z0.2 E0.3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E398.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1300 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y-18 Z-7.70 S1 ; set axis minima
M208 X285 Y292 Z400 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"io0.in" ; configure active-high endstop for low end on X via pin io0.in
M574 Y1 S1 P"io1.in" ; configure active-high endstop for low end on Y via pin io1.in
M574 Z1 S1 P"io2.in" ; configure active-high endstop for low end on Z via pin io2.in

; Z-Probe
M950 S0 C"io5.out" ; create servo pin 0 for BLTouch
M558 P9 C"^io5.in" H5 F100 T2000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X0:280 Y5:285 S20 ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out1" T0 ; create bed heater output on out1 and map it to sensor 0
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
M143 H0 S150 ; set temperature limit for heater 0 to 150C
M308 S1 P"temp1" Y"thermistor" T100000 B4267 ; configure sensor 1 as thermistor on pin temp1
M950 H1 C"out2" T1 ; create nozzle heater output on out2 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S305 ; set temperature limit for heater 1 to 305C

; Fans
M950 F0 C"out6" Q500 ; create fan 0 on pin out6 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out7" Q20 ; create fan 1 on pin out7 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 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

; Custom settings are not defined

; 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

Thank you in advance for all of your help.

Ladies and Gentlemen, we got 'em.

For reference of those who see this post in the future, this was a conversion of a CR 10 to a Duet controller with a new hemera. None of these components had been tested before, so it was all new.

In order to account for these changes, I created a new profile for the printer in Cura. My mistake was not checking the "extruder" portion of the configuration.

It was set to a filament diameter of 2.85mm instead of 1.75mm. This explains why I could somewhat fix the issue when I set my extrusion factor to 150%.

After making the change, and reslicing, the first few benchy layers appear to have the issue fixed.

Thank you to all of you who posted with ideas for help. Luckily it appears this solution was simple.

Hello All, I am having an issue with major under extrusion with my Hemera on a Duet 3 6HC. I have done the esteps calibration for the extruder and verified it is correct, but I am still seeing heavy under extrusion when printing. I've made sure my thermistor values are correct, done a PID tune, and played around with the temperature a bit to no avail. (195C-200C, which has worked with this specific PLA before.) Any help would be greatly appreciated.

Here are some photos:

Here is my current config.g:
; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed Feb 17 2021 16:50:37 GMT-0700 (Mountain Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"CR 10" ; set printer name

; Network
M552 P192.168.0.99 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.0.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0.0 S0 ; physical drive 0.0 goes backwards
M569 P0.1 S0 ; physical drive 0.1 goes backwards
M569 P0.2 S0 ; physical drive 0.2 goes backwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M584 X0.0 Y0.1 Z0.2 E0.3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E398.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1300 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y-18 Z-8.70 S1 ; set axis minima
M208 X285 Y292 Z400 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"io0.in" ; configure active-high endstop for low end on X via pin io0.in
M574 Y1 S1 P"io1.in" ; configure active-high endstop for low end on Y via pin io1.in
M574 Z1 S1 P"io2.in" ; configure active-high endstop for low end on Z via pin io2.in

; Z-Probe
M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y-3:195 S20 ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out1" T0 ; create bed heater output on out1 and map it to sensor 0
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
M143 H0 S150 ; set temperature limit for heater 0 to 150C
M308 S1 P"temp1" Y"thermistor" T100000 B4267 ; configure sensor 1 as thermistor on pin temp1
M950 H1 C"out2" T1 ; create nozzle heater output on out2 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S305 ; set temperature limit for heater 1 to 305C

; Fans
M950 F0 C"out6" Q500 ; create fan 0 on pin out6 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out7" Q20 ; create fan 1 on pin out7 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 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

; Custom settings are not defined

; 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