Bltouch setup need help

JoergS5 · 9 Jul 2020, 04:17

@Elvis0z was your bltouch over the bed and was it deployed?

Elvis0z · 9 Jul 2020, 04:17

Elvis0z · 9 Jul 2020, 04:19

M401
M402
Both these commands work

JoergS5 · 9 Jul 2020, 04:20

@Elvis0z did it have a bit of distance to the bed? There are some documentation to the installation. The Z height in reference to the nozzle is important.
The image right lower on page 1 in the https://locxess.de/3d/BLTouch_Anleitung_englisch.pdf
document, the 8mm.

Elvis0z · 9 Jul 2020, 04:21

Yep it probes way above the bed.

JoergS5 · 9 Jul 2020, 04:23

@Elvis0z can you please republish config and homeall like it is now, so I can recheck?

Elvis0z · 9 Jul 2020, 04:25

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 09 2020 17:58:51 GMT-0700 (Mountain Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Elvis Oz Tevo Black Widow" ; set printer name

; Network
;M551 P"" ; set password
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S0 ; 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 X80.00 Y80.00 Z1600.00 E400.00 ; set steps per mm
M566 X500.00 Y500.00 Z18.00 E300.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z100.00 E1000.00 ; set accelerations (mm/s^2)
M906 X1300 Y1300 Z1200 E1300 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 X360 Y230 Z280 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
M574 Z1 S2 ; configure Z-probe endstop for low end on Z

; Elvis, The following Z-Probe below is where you will have to configure your BLTouch

; Z-Probe
M558 P9 C"^zprobe.in" H5 F60 T6000 A10 R0.5
M950 S0 C"exp.heater3"
G31 P25 X+41 Y+10 Z0.0 ; set Z probe trigger value, offset and trigger height
M557 X25:360 Y15:220 S20 ; define mesh bed level

; 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 A346.2 C140 D5.3 B0 S2.0 V23.8 ; enable bang-bang mode for the bed heater and set PWM limit
;M307 H0 B1 S1.00 ; Previous Command
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"spi.cs1" Y"rtd-max31865" ; 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 H3 A-1 C-1 D-1 ; Disable the 3rd Heater to free up PWM channel
; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0.5 H1 T45 ; Elvis, The S0.5 is setup for a 12V Fan, 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 S0.20 H-1 ; Elvis, The 0.20 is setup for a 5V Fan, set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0.0 ; 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
M575 P1 S1 B115200 ; Elvis, Go into the setup of your PanalDue and set the baud rate to 115200, enable support for PanelDue
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Tue Jun 09 2020 17:58:52 GMT-0700 (Mountain Standard Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-235 Y-215 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-235 Y-215 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X100 Y100 F6000 ; go to first bed probe point and home Z
G30 ;home Z by probing the bed

JoergS5 · 9 Jul 2020, 04:27

@Elvis0z to be sure: your BLtouch is right and behind the nozzle?

Elvis0z · 9 Jul 2020, 04:28

Yep right and behind

JoergS5 · 9 Jul 2020, 04:32

@Elvis0z are you sure G31 Z is 0? This would mean the BLtouch triggers when the nozzle touches the bed.
Please recheck steps 5-7 in https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe#Section_Calibrate_the_Z_probe_trigger_height . You could trial and error some values for Z also... (Z positive) - I would do that

I don't see other problems, I would only remove the + signs from
G31 P25 X+41 Y+10 Z0.0
they will probably be interpreted correctly, but I didn't see + signs in the examples, so to be sure, I would remove them.

Elvis0z · 9 Jul 2020, 04:37

I cant go down on the z
As it won't home z
Should I just manually move the hotend to the bed

JoergS5 · 9 Jul 2020, 04:40

@Elvis0z you can of course move Z carefully down with the small G1 Z movements (+Z0.1 etc) until you have the famous one-sheet-paper-distance, then say G92 Z0 to set 0 position. But this is no general solution. There must be a reason why it is not working as expected.
Maybe someone other has an idea what's wrong.

JoergS5 · 9 Jul 2020, 04:42

@Elvis0z @Phaedrux is here to the rescue! (I hope)

Phaedrux · 9 Jul 2020, 04:43

@Elvis0z said in Bltouch setup need help:

Error: Z probe was not triggered during probing move
Error: Homing failed

Double check your white wire.

M558 P9 C"^zprobe.in" H5 F60 T6000 A10 R0.5
You can try removing the ^ in front of zprobe.in

Elvis0z · 9 Jul 2020, 04:44

Thanks heaps hey. I'm futher ahead than I have been. At least its moving and the probe works with M401 and 2. That did not work befor

Phaedrux · 9 Jul 2020, 04:45

@Elvis0z said in Bltouch setup need help:

Hey guys need help to set this up its a v1.0 bltouch.

Is this a version with the trace to cut or does it come with the resistor? It's been a long time since I've seen anyone with a V1, so I'm wondering if it matters in this case. If it's a new Duet 1.04 it can't be hurt by 5v, but perhaps there is something in the BLtouch that will not trigger. If removing the ^ and checking your white wire is fruitless, maybe look into the trace/resistor

Elvis0z · 9 Jul 2020, 04:46

No I replaced it with a v3.1 that I had

Elvis0z · 9 Jul 2020, 04:47

If I send command M401 and M402 it triggers

Phaedrux · 9 Jul 2020, 04:48

You mean it deploys and retracts?

When you send G30 does the pin deploy?

Elvis0z · 9 Jul 2020, 04:51

I get this error when sending G30

G30

Error: G30: Insufficient axes homed for bed probing