SOLVED Newly installed Duex5, BLTouch no longer working
tomasro last edited by
BlTouch 1.1 or 1.2
BLTouch servo is connected to PWM1 of the duex, and the z-probe pins have a 240ohm resistor across them. When the machine is turned on for the first time, it does 2 test probes with the BLTouch pin, then stays lit with the pin retracted. Z-probe in the sensor line of the DWC shows 1000 all the time. M401 and M402 commands no longer work (where they did before). Any ideas?
Re-posted your config.g file using the </> tag.
; Configuration file for Duet WiFi (firmware version 3.3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.3.4 on Fri Oct 22 2021 23:28:40 GMT-0700 (Pacific Daylight Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"R2D Cube" ; set printer name M669 K1 ; select CoreXY mode ;M912 P0 S84.6 ;calibrate MCU temperature ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable 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 S1 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E402.00 ; set steps per mm M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X12000.00 Y12000.00 Z600 E1200.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z100.00 E250.00 ; set accelerations (mm/s^2) M906 X900 Y900 Z800 E800 I1 ; set motor currents (mA) and motor idle factor in per cent M84 S10 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X455 Y405 Z420 S0 ; set axis maxima ; Endstops M591 P2 C"e0stop" S1 D0 ; filament monitor connected to E0 endstop M574 X1 S1 P"!xstop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin !xstop M574 Y1 S1 P"!duex.e4stop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin !ystop M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M950 S0 C"duex.pwm1" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H5 F120 T6000 ; 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 X15:445 Y15:400 S100 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 ;M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M307 H1 B0 R2.096 C328.9:300.7 D7.08 S1.00 V16.5 M143 H1 S280 ; set temperature limit for heater 1 to 280C ; Fans M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P1 S1.0 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
Remember that the self-test the BLTouch does on power up merely means it is getting power.
The control signal from the Duex to the BLTouch and/or the "data" signal from the BLTouch to the Duex can be wrong but the self-test will still complete.
Where on the Duex board is the BLTouch connected?
tomasro last edited by
@fcwilt It's connected to PWM1 on the Duex board, but I just found that my White and Orange wires were swapped, so that has it fixed. Thanks for coming to my aid