Posts made by Hal

figured it out, it was also a strange setting that was in simplify3d. printing well so far, the true test will start tonight.

now it seems like for what ever reason the bed moves down a bit (~.05 to 1mm) after the purge happens....why do my issues keep growing. ehhhhhhhhhh.

I am having yet another issue....(ehhhhhh)

After Bed compensation and I purge my nozzle for a bit... my bed moves down about 1mm or so and causes a large gap between the bed and nozzle. The problem is my Z Gap is set and looks good, so I know that this is not my Z0 this has to be some other process running after the purge of the nozzle occurs. The only thing is I am not sure where that Gcode resides.

here is a video of my issue:

https://www.youtube.com/watch?v=givpolLc7wE

and here is a picture of my Z gap at Z0:

Paper is tight but not to tight against the paper.

If I were to do this during the print the paper would not even make contact with the nozzle.

any help would be appreciated

Thanks

alright down to 1 error homing error is still happening but auto bed leveling is running as expected.

I invoked the Bed.g file using M32 command.

maybe my issue is in the bed.g file now.

Thanks

should I even have that much in here as the Bed.g file should be called, or is that invoked from S3d?

Well I figured out the M280 command error, it seems like I set my S3D to use P0 instead of P3, so made the change and boom no more M280 error.

I am still getting the homing errors and the M29 error.

maybe those errors are also causing my other errors, so here is my s3d start and stop process.

start gcode from s3d

M280 P3 S160 ; BLTouch alarm release
G4 P100 ; delay for BLTouch
G28 ; home
G29 ; auto bed leveling
G1 X0 Y5 Z0.2 F3000 ; get ready to prime
G92 E0 ; reset extrusion distance
G1 X250 E20 F600 ; prime nozzl

end gcode from s3d

M104 S0 ; turn off extruder
M140 S0 ; turn off bed
G28 X Y ; home x and y axes
M84 ; disable motors

thanks for any help.

@phaedrux said in Homing Issues:

Are you manually calling M401 and M402 anywhere?

Yes in my bed.g file

@phaedrux said in Homing Issues:

But you still get a homing failed error along with the servo error?

Funny enough I did not, and i only get the servo error if i try to print.

Probe deploys, bed moves up, hits probe, the probe retracts, then the z axis moves down a few mm for clearance. I believe this is the correct process.

I did have to home x and y before I could issue the G30 command

It is all good I caught it before it even touched the bed. So I do not believe that I am Not Not inverted.

goodness I am not sure what this is.

Here is my homeall.g:

G28 X ;home x
G28 Y ;home y
G90
G1 X150 Y150 F4000
G30 ; Do a single probe to home our Z axis

Okay so I removed the I1 from the deploy and retract and my bed almost rammed into my Build Plate. Thank goodness for emergency stop.

@phaedrux said in Homing Issues:

@hal said in Homing Issues:

G31 X0 Y0.0 Z0 P5

The X and Y values should be the distance from the BLTouch pin to the nozzle.

The Z value will need to be measured with a G30 S-1 command. I'll link to a tutorial on how to get that setup.

The P value is the trigger value. 5 is very low. I use 50 for the BLTouch.

The invalid servo index means something is wrong either with the M558 command and how you have things wired, or the command is wrong in your deployprobe.g and retractprobe.g macros.

Can you post those macros from the system folder?

Can you describe how you have the BLTouch wired up?

Does the BLTouch pin deploy and retract?

https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch

https://betrue3d.dk/bltouch-on-duet-wifi-configuratio-and-usage/

By the way thank you for helping me out and giving me suggestions.

I did try you suggestion of adjusting the trigger level and still had the error.

Yes my BLtouch deploys and retracts. I have been able to use the BLtouch with the Auto bed compensation button above the homing buttons, and it seems to work fine.

So it kinda leaves the software as the culprit.

M280 P3 S10 I1 is all I have in my deployprobe.g **I should also note that I do not call these macros anywhere I use the M401 and M402 commands instead.

M280 P3 S90 I1 Retractprobe.g

I followed the wiring guide from here:

http://www.folgerforum.com/t/walter-s-modifications-part-3-the-duet/1582

Thanks

Just tried P50 and P80 to no avail. I still get the Z homing error.

@phaedrux said in Homing Issues:

The trigger value in your G31 command is very low. Try 50 instead of 5.

So I have been setting my Z-trigger to do my Z-offset, I read that this is how the z-offset is defined?

If it is not then how is Z-offset set with the BLTouch?

I also see that I have these Errors (See below):

Error: Invalid Servo Index 0 in M280 command

Error: Homing failed

Error: G29: No Valid grid defined for be probing

These may be caused by all of the same thing, but I am not sure.

Any help would be appreciated, es[ecially for setting Z-Offset so I can fix these errors.

Thanks.

Any reason the BLTouch would cause this error? I am also wondering if the feed rate is to high will it cause this to happen?

anyways any suggestions are welcome

@dc42 said in Homing Issues:

G90
G1 X150 Y150 F6000
G30 ; Do a single probe to home our Z axis

With this update I still get the same error after Home All is acomplished or Home Z.

Thanks

Pulling my hair out over homing.

I have each individual home button working I think, but homeall.g seems to be giving me a ton of headache.

when I try to use the homeall button my x and my y home and seem to work, but after my Z homes I get this error:

Here are my g files:

; Configuration file for Duet WiFi (firmware version 1.20 or newer)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Mon Jun 11 2018 01:19:12 GMT-0400 (Eastern Daylight Time)

; General preferences
G90                            ; Send absolute coordinates...
M83                            ; ...but relative extruder moves

; Network
M550 PBob 1                    ; Set machine name
M552 S0
M587 S"network" P"password"
M552 S1

; Drives
M569 P0 S0                     ; Drive 0 goes forwards
M569 P1 S1                     ; Drive 1 goes forwards
M569 P2 S0                     ; Drive 2 goes forwards
M569 P3 S1                     ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1        ; Configure microstepping with interpolation
M92 X80 Y80 Z4000 E418.45      ; Set steps per mm
M566 X900 Y900 Z12 E120        ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200    ; Set maximum speeds (mm/min)
M201 X500 Y20 Z250 E250        ; Set accelerations (mm/s^2)
M906 X900 Y900 Z1200 E800 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 X300 Y300 Z400 S0         ; Set axis maxima

; Endstops
M574 X1 Y1 Z0 S0                  ; Set active high endstops

; ** BLTouch
;
M307 H3 A-1 C-1 D-1               ; disable heater 3, BLTouch - servo pulse on heater 3 pin (expansion 8)
M558 P9 X0 Y0 Z1 H5 F200 T5000 	        ; Type 5 for BLTouch (Normally closed switch on Z-probe inputs)
G31 X0 Y0.0 Z0 P5 	  ; Z=trigger height, P=trigger value, not needed for contact probe, X/Y 
                                  ; distance from nozzle
;

; Heaters
M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120                   ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280                   ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S0.3 I0 F500 H-1       ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45      ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45      ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1                  ; 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

; Automatic saving after power loss is not enabled

; Custom settings are not configured

bed.g:

; bed.g
; called to perform automatic bed compensation via G32

G28 ; home all
G91 ; relative mode
G1 Z5 F2000 ; move Z 4mm for clearance
G90 ;absolute mode
M401 ; In lieu of macro - call GCode for deploy probe
M557 X10:270 Y10:270 S40 ; probe every 40mm from 10 to 270 in X and Y
G29 ; run auto bed mesh level
M402 ; In lieu of macro - call GCode to retract probe
G1 X10 Y10 Z10 F5000

Homex.g

; homex.g
; called to home the X axis
;
; Bed down a bit relative to current position
G91 ; relative mode
G1 Z4 S2 F200 ; raise head to avoid dragging nozzle over the bed
G1 X-300 F3000 S1 ; move up to 240mm in the -X direction, stopping if the homing switch is triggered
G1 X4 F600 ; move slowly 4mm in the +X direction
G1 X-10 S1 ; move slowly 10mm in the -X direction, stopping at the homing switch
G1 Z-4 S2 F200 ; lower the head again
G90 ; back to absolute mode

Homey.g

; homey.g
; called to home the Y axis

; Bed down a bit relative to current position
G91 ; relative mode
G1 Z4 S2 F200 ; raise head to avoid dragging nozzle over the bed
G1 Y-300 F3000 S1 ; move up to 240mm in the -X direction, stopping if the homing switch is triggered
G1 Y4 F600 ; move slowly 4mm in the +X direction
G1 Y-10 S1 ; move slowly 10mm in the -X direction, stopping at the homing switch
G1 Z-4 S2 F200 ; lower the head again
G90 ; back to absolute mode

Homez.g

; homez.g
; called to home the Z axis
;
G91
G1 X150 Y150
G90
G30 X150 Y150; Do a single probe to home our Z axis
G90 ; Make sure we are in absolute mode

Homeall.g

; homeall.g
; called to home all axes
;
G28 X ;home x
G28 Y ;home y
G91
G1 X150 Y150
G90
G30 X150 Y150; Do a single probe to home our Z axis
G90 ; Make sure we are in absolute mode

Why can I not home with Homeall,g? any help would be appreciated.

Hey all,

Not sure what happened, but I have not had a disconnect in a few hours, so maybe the new firmware is doing its job. If I find anything out I will report back to this thread.

Thanks,

installed firmware 2.0 and still get constant disconnects. What am I doing wrong?

yet another error to add to the list: