Issues getting a bltouch clone working
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Hi, please could I ask for some help with a bltouch clone. I have an official, but broken bltouch and then some 3dtouch clones (one of which I am trying to use), but I have never been able to get it working reliably. Previously I had it set up on the pin suggested here https://betrue3d.dk/bltouch-on-duet-wifi-configuratio-and-usage/ but have moved it to Heater3 pin 8 on mode 9, and am struggling.
Deploy probe works:
M280 P3 S10 I1retract probe works:
M280 P3 S90 I1homez works in that it raises the bed until the bltouch triggers, but then half the time it gives the error " Error: Z probe was not triggered during probing move" even though it triggered and stopped:
G30 ; Do a single probe to home our Z axis
G90 ; Make sure we are in absolute mode
G1 Z10 F6000 ; Rapidly move the Z axis to Z=10.trying to do the auto bed levelling just errors out with the same message.
By now I think I have completely messed up my config files trying everything. Does anyone have an example config with working bltouch, or can advise on what I am doing wrong?
Thank you for any help and advice you can give,
Kind regards, -
Looks like RRF2 based on your deploy/retract commands?
; BLTouch M574 Z1 S2 ; Use zprobe and home to Z Min. M307 H3 A-1 C-1 D-1 ; Unbind heater 3 pins for probe use. M558 P9 H5 F60 T6000 ; G31 X-43.2 Y31.9 Z2.33 P25 ; probe XY offset and Z trigger heightPost your config and homing files. Verify your firmware version with M115.
Then test if M401 and M402 deploy and retract the pin.
Then test if G30 deploys the pin and test if triggering it by hand halts movement. -
Thank you for your reply.
My Config.g is:
M574 z1 S2
M307 H3 A-1 C-1 D-1
m558 P9 H F700 T4000 X0 Y0 Z1; Configuration file for Duet WiFi (firmware version 2.03) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v2.0.4 on Sun Sep 29 2019 01:05:21 GMT+0100 (British Summer Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"My Printer" ; set printer name M667 S1 ; select CoreXY mode ; Network m552 p192.168.0.108 s1 M552 P192.168.0.108 ; (0 = DHCP) M554 P192.168.0.1 ; Gateway M553 P255.255.255.0 ; Netmask M586 P0 S1 ; enable HTTP M586 P1 S1 ; enable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S0 ; physical drive 0 goes backwards M569 P1 S0 ; physical drive 1 goes backwards M569 P2 S0 ; physical drive 2 goes backwards M569 P3 S0 ; physical drive 3 goes backwards M569 P4 S0 ; physical drive 4 goes backwards M584 X0 Y1 Z2 E3:4 ; set drive mapping M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E95.00:420.00 ; set steps per mm M566 X900.00 Y900.00 Z12.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z180.00 E1200.00:1200.00 ; set maximum speeds (mm/min) M201 X2000.00 Y2000.00 Z50.00 E250.00:250.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z900 E900:800 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 X330 Y330 Z400 S0 ; set axis maxima ; Endstops M574 X1 Y1 S0 ; set active low and disabled endstops M574 z1 S2 M307 H3 A-1 C-1 D-1 m558 P9 H F700 T4000 X0 Y0 Z1 G31 P25 x-8 y-15 z2 G31 P25 X-20 Y50.0 Z0.0 ; Z probe trigger value, offset in relation to nozzle. And trigger height adjustment THIS NEEDS UPDATING WITH REAL LOCATION ; Heaters M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1 M143 H1 S280 ; set temperature limit for heater 1 to 280C M305 P2 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 2 M143 H2 S280 ; set temperature limit for heater 2 to 280C ; BLTouch - Heaters M307 H7 A-1 C-1 D-1 ; Disable the 7th Heater to free up PWM channel 5 on the Duex board. ; Fans M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P1 S1 I0 F500 H1:2 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on ; Tools M563 P0 S"Main extruder" 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 M563 P1 S"second extruder" 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 ; 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 M552 S1 ; enable networkMy homing file is:
G30 ; Do a single probe to home our Z axis G90 ; Make sure we are in absolute mode G1 Z10 F6000 ; Rapidly move the Z axis to Z=10.Firmware version 2.0(RTOS)
m401 and m402 do deploy and retract the pin, and when I do a g30, it pops down the pin and goes until I stop it with my hand. If i do another g30 at that point, it will say the message about z probe not being triggered. I note that it will also sometimes spontaneously trigger when doing a g30, but not if I put the pin down and then move up and down on the z.Trying to do the bed levelling grid , it goes down to the first spot, triggers, but then just sits there without raising. The pin then extends again, but can't as it is already at the triggering height, and so it errors and sits there flashing until I do M280 P3 S160 I1
Kind regards
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m558 P9 H F700 T4000 X0 Y0 Z1 G31 P25 x-8 y-15 z2 G31 P25 X-20 Y50.0 Z0.0You're missing an H value entirely.
Remove the X0 Y0 Z1 as it's no longer used.
F700 is way too fast. Thankfully it's limited by your Z max speed.
And you have duplicate G31 entries.I also notice you have some weird spacing here and there like double spaces. Try to avoid that.
RRF2.0 is quite old at this point. Might be a good time to update to 2.05.1 at least.
https://github.com/Duet3D/RepRapFirmware/releases/download/2.05.1/Duet2Firmware-2.05.1.zip
You can upload that zip file as is to the system tab in DWC and it should take care of the rest.
Here's a list of the changes since 2.0
https://github.com/Duet3D/RepRapFirmware/blob/dev/WHATS_NEW.md -
Thank you for your reply again. I will give all of your suggestions a try in the morning and will post updates,
Thanks -
Same problem here: Duet 2 Ethernet , SW 3.1.1 and my BLTouch clone does not deploy (only self test).
; Z-Probe
M558 P9 C"^zprobe.in" H5 F120 T3000 ; FW v3 BLTouch connected to Z probe IN pin
M950 S0 C"exp.heater5" ; FW v3 create servo/gpio 0 on heater 3 pin on expansion connector
G31 P500 X14 Y-35 Z2.7 ; Set Z probe trigger value, offset and trigger height
M557 X35:225 Y35:225 S20 ; Define mesh grid
M915 X Y S5 R2 -
@xxexx said in Issues getting a bltouch clone working:
Same problem here: Duet 2 Ethernet , SW 3.1.1 and my BLTouch clone does not deploy (only self test).
; Z-Probe
M558 P9 C"^zprobe.in" H5 F120 T3000 ; FW v3 BLTouch connected to Z probe IN pin
M950 S0 C"exp.heater5" ; FW v3 create servo/gpio 0 on heater 3 pin on expansion connector
G31 P500 X14 Y-35 Z2.7 ; Set Z probe trigger value, offset and trigger height
M557 X35:225 Y35:225 S20 ; Define mesh grid
M915 X Y S5 R2Not really the same problem. You're on RRF3 and he's on 2. Similar symptoms maybe. Please start a new thread for your issue.
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Thank you for your help! Upgrading the firmware was painless as you suggested, and it looks like it was the H value that was causing the issues as you said. It would check the first one, but then instantly try to put back out the pin. Again, thank you so much, that was driving me crazy.
