BLtouch acting weird
-
So I've recently upgraded the firmware to the following:
Board: Duet 2 WiFi (2WiFi)
Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.1.1 (2020-05-19b2)
Duet WiFi Server Version: 1.23After that I ordered myself the new bltouch v3.1... at the beginning it worked fine, but now when I power on the printer, the self-test doesn't happen and it starts flashing red.
However, when I pull the pin down manually and then reset withM280 P0 S160 I1
then the BLtouch behaves normally.
What could be wrong here?config file:
; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Mon Mar 22 2021 18:37:17 GMT+0100 (Midden-Europese standaardtijd) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"AM8" ; set printer name ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S0 ; physical drive 2 goes forwards M569 P3 S0 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X200.00 Y100.00 Z800.00 E402.00 ; set steps per mm M566 X600.00 Y600.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min) JERK-900 XY 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) 500 XY M906 X800 Y800 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X-17 Y-7 Z0 S1 ; set axis minima M208 X220 Y215 Z240 S0 ; set axis maxima ; Endstops M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop ; Z-Probe M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H3 F150 T6000 ; set Z probe type to bltouch and the dive height + speeds ;M558 H30 ;*** Remove this line after delta calibration has been done and new delta parameters have been saved G31 P25 X31 Y-8 Z2.44 ; set Z probe trigger value, offset and trigger height M557 X15:205 Y15:205 S23.75 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; 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 B4138 ; 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 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 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 M207 S4.5 F3600 Z1 ; set retraction parameters M575 P1 S1 B57600 ; enable support for PanelDue M501 ; load saved parameters from non-volatile memory -
Dirty pin? Removing the set screw on top lets you slide it out. Sometimes wisps of filament get stuck to it.
Give the set screw at the top a twist to move the magnet up or down?
-
@phaedrux said in BLtouch acting weird:
Dirty pin? Removing the set screw on top lets you slide it out. Sometimes wisps of filament get stuck to it.
Give the set screw at the top a twist to move the magnet up or down?
It's a brand new sensor, only used for 1 print...
I'll give the set screw a try once I get home!
-
@r3play said in BLtouch acting weird:
@phaedrux said in BLtouch acting weird:
Dirty pin? Removing the set screw on top lets you slide it out. Sometimes wisps of filament get stuck to it.
Give the set screw at the top a twist to move the magnet up or down?
It's a brand new sensor, only used for 1 print...
I'll give the set screw a try once I get home!
Altough turning the screw seemed to be pretty hard, looks like that solved the issue.
Thanks! -
Well, 2 prints later and it started doing it again.
After a closer look at the BLTouch I noticed that the plastic pin was slightly bend causing it to get stuck on the rim of the housing.
I removed the pin and carefully bend it back.Seems to be working fine now.
Thought I would post this in case someone else experiences the same issue in the future
-
Thanks for the update. Bent pin would be a good thing to check for.
