removing a warning height map message

sebxtreme

is possible to removing warning message : "the height map was loaded when the current Z=0 datum"
because it's loud... on each print lol if yes how to?

Stephen6309

@sebxtreme Home Z before loading the hightmap.csv

For example, my mesh.g file:

; mesh.g
; called to load/make heightmap.csv
M98 P"/macros/ResetBabystepping"
M561       ; clear any bed transform
while iterations < #move.axes & move.axes[iterations].visible
  if !move.axes[iterations].homed
    G28
    break
G28 Z			; home Z to set Z0
G29 S1			; load heightmap.csv
if result > 1	; make if it doesn't exist
	G29 S0

mikeabuilder

I wonder why the warning is being given. I thought it only was given if the mesh was enabled when Z was not homed. MAybe something is not right with your homez.g file?

And not sure this is helpful, but I think the point of your while loop starting on line 5 is to home any axes not homed. The G28 on line 7 will home all axes since none are specified. I think you might want to make line 7 be G28 {move.axes[iterations].letter} to home only the axis of that iteration.

fcwilt

@stephen6309

How do you home your Z axis?

Frederick

Stephen6309

@fcwilt With a BLTouch.

; homez.g
; called to home the Z axis
if global.DisableHoming
	M117 "M-Max Home X Disabled"
	M99
G91                ; relative positioning
G1 H2 Z10 F6000    ; lift Z relative to current position
G90                ; absolute positioning
G1 X{((move.axes[0].max + move.axes[0].min) / 2) - sensors.probes[0].offsets[0]}, Y{((move.axes[1].max + move.axes[1].min) / 2) - sensors.probes[0].offsets[1]}, F6000
G30                ; home Z by probing the bed
G1 Z0				; used to set G31 Z offset, paper method

fcwilt

@stephen6309 said in removing a warning height map message:

@fcwilt With a BLTouch.

; homez.g
; called to home the Z axis
if global.DisableHoming
	M117 "M-Max Home X Disabled"
	M99
G91                ; relative positioning
G1 H2 Z10 F6000    ; lift Z relative to current position
G90                ; absolute positioning
G1 X{((move.axes[0].max + move.axes[0].min) / 2) - sensors.probes[0].offsets[0]}, Y{((move.axes[1].max + move.axes[1].min) / 2) - sensors.probes[0].offsets[1]}, F6000
G30                ; home Z by probing the bed
G1 Z0				; used to set G31 Z offset, paper method

Why do you have the G1 Z0 there?

It could cause a problem. If for some reason the G31 Z parameter was incorrect the G1 Z0 could impact the bed.

Thanks.

Frederick

Stephen6309

@fcwilt I have the G1 Z0, so i can adjust the G31 offset if needed without having to run G1 Z0 in the console for each of the offset macro run.

fcwilt

@stephen6309 said in removing a warning height map message:

@fcwilt I have the G1 Z0, so i can adjust the G31 offset if needed without having to run G1 Z0 in the console for each of the offset macro run.

You're a braver man than I.

Thanks.

Frederick

Stephen6309

@fcwilt I use G31 P500 X(global.XHotendOffset) Y(global.YHotendOffset) Z0 in config.g, so until printing is started, the Z offset isn't set correctly. Those globals are set earlier in config.g.

fcwilt

@stephen6309 said in removing a warning height map message:

@fcwilt I use G31 P500 X(global.XHotendOffset) Y(global.YHotendOffset) Z0 in config.g, so until printing is started, the Z offset isn't set correctly. Those globals are set earlier in config.g.

Interesting! Why globals? Do you have interchangeable probes?

Thanks.

Frederick

Stephen6309

@fcwilt I used them to make it easier to set them. I just changed to a chimera, and only had to edit that file with the new offsets and run it, since I also use them in the macros to set my G31. Don't like to edit config.g, too many times a typo foobared it.

fcwilt

@stephen6309 said in removing a warning height map message:

@fcwilt I used them to make it easier to set them. I just changed to a chimera, and only had to edit that file with the new offsets and run it, since I also use them in the macros to set my G31. Don't like to edit config.g, too many times a typo foobared it.

Got it.

I deal with that sort of thing, where the values are not likely to change, by putting the needed commands in a separate g-code file in the sys folder.

For example I put all of the Z probe configuration commands in a file name probe_config.g. I include a M98 P"probe_config.g" command in any other file that is about to use the probe, so the most recent settings I edited into probe_config.g are applied. No need to re-boot the printer, just edit the file and the changes will be used.

Frederick

sebxtreme

hi sorry for lte response, but i'm on delta , and i use Homedelta.g, but this warning message come when i launch a print job, and only on my delta printer ... not on my CR10...and on this my mesh is 6 month old... so i'm not understanding why....

homedelta.g
; called to home all towers on a delta printer
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat May 01 2021 13:22:54 GMT+0200 (heure d’été d’Europe centrale)
G91 ; relative positioning
G1 H1 X650 Y650 Z650 F1800 ; move all towers to the high end stopping at the endstops (first pass)
G1 H2 X-5 Y-5 Z-5 F900 ; go down a few mm
G1 H1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
G1 Z-3 F900 ; move down a few mm so that the nozzle can be centred
G90 ; absolute positioning
G1 X0 Y0 F6000 ; move X+Y to the centre

Phaedrux

@sebxtreme said in removing a warning height map message:

hi sorry for lte response, but i'm on delta , and i use Homedelta.g, but this warning message come when i launch a print job, and only on my delta printer ... not on my CR10...and on this my mesh is 6 month old... so i'm not understanding why....

homedelta.g
; called to home all towers on a delta printer
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat May 01 2021 13:22:54 GMT+0200 (heure d’été d’Europe centrale)
G91 ; relative positioning
G1 H1 X650 Y650 Z650 F1800 ; move all towers to the high end stopping at the endstops (first pass)
G1 H2 X-5 Y-5 Z-5 F900 ; go down a few mm
G1 H1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
G1 Z-3 F900 ; move down a few mm so that the nozzle can be centred
G90 ; absolute positioning
G1 X0 Y0 F6000 ; move X+Y to the centre

We'd need to see your config.g, bed.g and your slicer start gocode to see when the mesh is actually being loaded and when/how Z0 is being set. You may just need to add a single G30 at the center of the bed right before the heightmap is loaded to eliminate the warning.

sebxtreme

@phaedrux

; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat May 01 2021 13:22:54 GMT+0200 (heure d’été d’Europe centrale)

; General preferences
G90                                                  ; send absolute coordinates...
M83                                                  ; ...but relative extruder moves
M550 P"predatorseb"                                  ; set printer name
M665 L440.356:440.356:440.356 R232.585 H421.757 B185.0 X0.750 Y-0.100 Z0.000
M666 X0.185 Y-1.345 Z1.160 A-0.43 B0.95
; 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 S0                                           ; physical drive 1 goes forwards
M569 P2 S1                                           ; physical drive 2 goes forwards
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 X160.00 Y160.00 Z160.00 E832.48                  ; set steps per mm config smart effector
M566 X300 Y300 Z300 E300
M203 X18000.00 Y18000.00 Z18000.00 E1200.00          ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z1000.00 E1000.00             ; set accelerations (mm/s^2)
M906 X1100 Y1100 Z1100 E800 I30                      ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                              ; Set idle timeout

; Axis Limits
M208 Z0 S1                                           ; set minimum Z

; Endstops
M574 X2 S1 P"xstop"                                  ; configure active-high endstop for high end on X via pin xstop
M574 Y2 S1 P"ystop"                                  ; configure active-high endstop for high end on Y via pin ystop
M574 Z2 S1 P"zstop"                                  ; configure active-high endstop for high end on Z via pin zstop

; Z-Probe
M558 P8 R0.2 C"zprobe.in+zprobe.mod" H5 F1800 T10000 ; config smart effector
G31 P500 X0 Y0 Z-0.30									; set Z probe trigger value, offset and trigger height (z-0.30)
M556 S50 X0 Y0 Z0									; set orthogonal axis compensation parameters
M557 R170 S20                                          ; define mesh grid
G29 S1                                                  ; Load the heightmap

; Filament sensor 
;M591 D0 P2 C"e0stop" S1						 	     ; Set filament sensor

;Linear advance
M572 D0 S0.2

; 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 B0 R0.311 C292.2 D1.48 S1.00 V23.9           ; disable 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 R2.582 C251.0 D6.27 S1.00 V23.8           ; 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" Q50                               ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 C"Nozzle"                            ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q250                                ; create fan 1 on pin fan1 and set its frequency
M106 P1 H1 S1 T45 C"head"                           ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"fan2" Q10
M106 P2 S0.3 H-1 C"MB"

; Tools
M563 P0 S"Nozzle" 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
T0
M911 S22 R23.5 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
M501

sebxtreme

@phaedrux

; called to perform automatic delta calibration via G ; bed.g
; called to perform automatic delta calibration via G32
;
; generated by RepRapFirmware Configuration Tool v3.3.3 on Thu Sep 30 2021 14:23:12 GMT+0200 (CEST)
M561 ; clear any bed transform
; Probe the bed at 12 peripheral and 3 halfway points, and perform 9-factor auto compensation
; Before running this, you should have set up your Z-probe trigger height to suit your build, in the G31 command in config.g.
G30 P0 X0 Y169.9 H0 Z-99999
G30 P1 X84.95 Y147.14 H0 Z-99999
G30 P2 X147.14 Y84.95 H0 Z-99999
G30 P3 X169.9 Y0 H0 Z-99999
G30 P4 X147.14 Y-84.95 H0 Z-99999
G30 P5 X84.95 Y-147.14 H0 Z-99999
G30 P6 X0 Y-169.9 H0 Z-99999
G30 P7 X-84.95 Y-147.14 H0 Z-99999
G30 P8 X-147.14 Y-84.95 H0 Z-99999
G30 P9 X-169.9 Y0 H0 Z-99999
G30 P10 X-147.14 Y84.95 H0 Z-99999
G30 P11 X-84.95 Y147.14 H0 Z-99999
G30 P12 X0 Y84.9 H0 Z-99999
G30 P13 X73.53 Y-42.45 H0 Z-99999
G30 P14 X-73.53 Y-42.45 H0 Z-99999
G30 P15 X0 Y0 H0 Z-99999 S6
; Use S-1 for measurements only, without calculations. Use S4 for 
stop heights and Z-height only. Use S6 for full 6 factors
; If your Z probe has significantly different trigger heights depending on XY position, adjust the H parameters in the G30 commands accordingly. The value of each H parameter should be (trigger height at that XY position) - (trigger height at centre of bed)
G29

sebxtreme

@phaedrux
prusa slicer start gcode

G28 ; home all axes
G1 Z5 F5000 ; lift nozzle
G29 S1

Phaedrux

@sebxtreme said in removing a warning height map message:

@phaedrux
prusa slicer start gcode
G28 ; home all axes
G1 Z5 F5000 ; lift nozzle
G29 S1

Well there you go. G28 will call home delta, which uses the tower endstops to set position. Then you load the heightmap which was created by the probe.

I suggest you add a single G30 after the G28 and before the G29 S1. That should get rid of the warning.

sebxtreme

@phaedrux you're right ! just trying now, and your solution remove my warning mess...
Many thanks for help

fcwilt

@sebxtreme said in removing a warning height map message:

@phaedrux you're right ! just trying now, and your solution remove my warning mess...
Many thanks for help

That single G30 sets what is called the Z=0 Datum. The practical result is, once set, moving to Z=0 should have the nozzle just touching the bed, or nearly so.

You needed to do that before creating heightmaps and before loading heightmaps.

That insures that the Z=0 position was consistent and accurate during creation and loading.

Frederick