And here we go again G29 Bed Mesh leveling going bonkers
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Hi,
on my second Printer i redid the wirering and tydied some things up.
Flashed the new 3.3 Firmware on the Duet2Wifi and thougt it would be a good idear to redo the Bedleveling since a new heatbet alongside a new Heater and a springsteel plate war installed.Since then i think i must have do something wrong with the Leveling cause the Mesh process adds to evry probing step some tens of a millimeter.
So the bed looks completly funky and starts at 0.034 and continusly climbs to 2.091mm and that simply cant be true.
It seems if the probe ist constantly adding a specific Value after echt probing.
Looks like some serpentine roads in the Alps
But that is sadly not usable.
Here are my config.g; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Fri Jun 18 2021 23:45:09 GMT+0200 (MitteleuropƤische Sommerzeit) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"HeVo_Rail" ; set printer name M669 K1 ; select CoreXY mode ; 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 S1 ; physical drive 2 goes forwards M569 P3 S1 ; physical drive 3 goes forwards M569 P4 S1 ; physical drive 4 goes forwards M584 X0 Y1 Z2:4 E3 ; set drive mapping M350 X16 Y16 Z16:15 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z1600.00:1600 E5236.00 ; set steps per mm M566 X1200.00 Y1200.00 Z500:500 E40 ; set maximum instantaneous speed changes (mm/min) M203 X35100.00 Y35100.00 Z1200:1200 E6000.00 ; set maximum speeds (mm/min) M201 X3000.00 Y3000.00 Z400:400 E120.00 ; set accelerations (mm/s^2) M906 X1800 Y1800 Z1400:1400 E1200 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Stall Detection M915 X Y S5 F0 H400 R4700 ; X / Y Axes ; Axis Limits M208 X-3 Y-30 Z0 S1 ; set axis minima M208 X300 Y300 Z300 S0 ; set axis maxima ; Endstops M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop M574 Y2 S1 P"ystop" ; configure active-high endstop for high end on Y via pin ystop M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M558 P1 R0.5 C"zprobe.in" H5 F1800 T24000 ; set Z probe type to effector and the dive height + speeds G31 P200 X0 Y0 Z-0.12 ; set Z probe trigger value, offset and trigger height M557 X5:295 Y5:295 S40 ; define mesh grid ; Heaters ; Bed M308 S0 P"bedtemp" Y"thermistor" T100000 B4559 C9.764201e-8 ; 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 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S90 ; set temperature limit for heater 0 to 90C ;Hotend 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 M143 H1 S300 ; set temperature limit for heater 1 to 300C ; Fans M950 F0 C"fan0" Q25000 ; create fan 0 on pin fan0 and set its frequency M106 P0 S0 H1 T45 ; set fan 0 value. Thermostatic control is turned on M950 F1 C"!fan1" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P1 S1 H-1 ; set fan 1 value. Thermostatic control is turned off M950 F2 C"fan2" Q25000 ; create fan 2 on pin fan2 and set its frequency M106 P2 S1 H1 T45 ; set fan 2 value. Thermostatic control is turned on ; Tools M563 P0 S"T0" 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 M671 X-60.5:360.5 Y150:150 ; Z leadscrews are at (-15,220), (100,-20) and (215,220)0 ; Miscellaneous M575 P1 S1 B57600 ; enable support for PanelDue M501 ; load saved parameters from non-volatile memory M911 S22 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss T0 ; select first tool M376 H5 ; Set bed compensation TaperHere is my bed.g:
; bed.g ; called to perform automatic bed compensation via G32 ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Fri Jun 18 2021 23:45:09 GMT+0200 (MitteleuropƤische Sommerzeit) G28 ; home M401 ; deploy Z probe (omit if using bltouch) ; Pass 1 G30 P0 X2 Y150 Z-99999 ; probe near a leadscrew, half way along Y axis G30 P1 X298 Y150 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors ;Pass 2 G30 P0 X2 Y150 Z-99999 ; probe near a leadscrew, half way along Y axis G30 P1 X298 Y150 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors ;Pass 3 G30 P0 X2 Y150 Z-99999 ; probe near a leadscrew, half way along Y axis G30 P1 X298 Y150 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors ;Pass 4 G30 P0 X2 Y150 Z-99999 ; probe near a leadscrew, half way along Y axis G30 P1 X298 Y150 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors G28 Z M402 ; retract probe (omit if using bltouch)here is my homeall.g:
; homeall.g ; called to home all axes ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Fri Jun 18 2021 23:45:09 GMT+0200 (MitteleuropƤische Sommerzeit) G91 ; relative positioning G1 H2 Z5 F30000 ; lift Z relative to current position G1 H1 X-308 Y335 F1800 ; move quickly to X or Y endstop and stop there (first pass) G1 H1 X-308 ; home X axis G1 H1 Y335 ; home Y axis G1 X5 Y-5 F30000 ; go back a few mm G1 H1 X-308 F360 ; move slowly to X axis endstop once more (second pass) G1 H1 Y335 ; then move slowly to Y axis endstop G90 ; absolute positioning G1 X150 Y150 F30000 ; go to first bed probe point and home Z G30 ; home Z by probing the bedan last but not least the homez.g:
; homez.g ; called to home the Z axis ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Fri Jun 18 2021 23:45:09 GMT+0200 (MitteleuropƤische Sommerzeit) G91 ; Relative mode G1 H2 Z5 F5000 ; Lower the bed G90 ; back to absolute positioning G1 X150 Y150 F50000 ; Position the endstop above the bed centre G91 ; Relative mode G4 P1000 ; wait 1000msec G30 ; Probe the bed at the current XY position. ; When the probe is triggered, set the Z coordinate ; to the probe trigger height. G90 ; absolute positioningand the higmap:
RepRapFirmware height map file v2 generated at 2021-06-19 11:38, min error 0.034, max error 2.205, mean 1.143, deviation 0.671 xmin,xmax,ymin,ymax,radius,xspacing,yspacing,xnum,ynum 5.00,295.00,5.00,295.00,-1.00,40.00,40.00,8,8 0.034, 0.051, 0.062, 0.073, 0.112, 0.152, 0.171, 0.213 0.532, 0.471, 0.465, 0.434, 0.424, 0.371, 0.311, 0.252 0.592, 0.610, 0.653, 0.692, 0.753, 0.792, 0.831, 0.854 1.132, 1.092, 1.032, 1.046, 1.045, 0.992, 0.985, 0.952 1.167, 1.185, 1.206, 1.232, 1.314, 1.352, 1.413, 1.472 1.593, 1.592, 1.572, 1.586, 1.575, 1.552, 1.532, 1.506 1.632, 1.712, 1.753, 1.831, 1.889, 1.952, 2.012, 2.085 2.205, 2.192, 2.172, 2.172, 2.152, 2.159, 2.132, 2.091I tried a lot in the past days, but i can't figure the hell out what i did wrong.
Would be nice if someone of you could take a look at these files ant determen if i did something catastrophicly wrong :).By the way i use a Piezo Probe for probing the bed with the Nozzle of the printhead directly.
Firmware 3.3 and Bed is mechanically OK in levelGreetings from Germany
Kai -
@s1lencer said in And here we go again G29 Bed Mesh leveling going bonkers:
M401 ; deploy Z probe (omit if using bltouch)
Does your probe require deploying and retracting? If not, remove the M401 and M402 lines.
You should probably also add M561 to the start of your bed.g to clear any compensations, etc before starting.
What happens if you probe the same point over and over with G30 S-1? Does the reported trigger height increase as well?
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My first guess would be is that your bed leveling settings are not correct.
Is Z16 the stepper driving the lead screw at X-60.5 and Z15 the stepper driving the lead screw at 360.5?
When these settings are not correct each leveling pass makes things worse.
Frederick
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Hi to you both,
@phaedrux said in And here we go again G29 Bed Mesh leveling going bonkers:
Does your probe require deploying and retracting? If not, remove the M401 and M402 lines.
no it doess not and is now removed.
@phaedrux said in And here we go again G29 Bed Mesh leveling going bonkers:
You should probably also add M561 to the start of your bed.g to clear any compensations, etc before starting.
Ok is added
@phaedrux said in And here we go again G29 Bed Mesh leveling going bonkers:
What happens if you probe the same point over and over with G30 S-1? Does the reported trigger height increase as well?
19.6.2021, 20:33:08 G30 S-1 Stopped at height 0.181 mm 19.6.2021, 20:33:06 M120 G91 G1 Z5 F6000 G90 M121 Stopped at height 0.156 mm 19.6.2021, 20:33:06 G30 S-1 Stopped at height 0.156 mm 19.6.2021, 20:33:04 G30 S-1 Stopped at height 0.151 mm 19.6.2021, 20:33:02 M120 G91 G1 Z5 F6000 G90 M121 Stopped at height 0.106 mm 19.6.2021, 20:33:02 G30 S-1 Stopped at height 0.106 mm 19.6.2021, 20:33:00 G30 S-1 Stopped at height 0.094 mm 19.6.2021, 20:32:57 G30 S-1 Stopped at height 0.076 mm 19.6.2021, 20:32:54 G30 S-1 Stopped at height 0.031 mm 19.6.2021, 20:32:50 G30 S-1 Stopped at height -0.001 mm 19.6.2021, 20:32:45 G30 S-1 Stopped at height -0.024 mm 19.6.2021, 20:32:41 G30 S-1 Stopped at height -0.049 mm 19.6.2021, 20:32:37 G30 S-1 Stopped at height -0.074 mmDoes the same as if meshbedleveling.
@fcwilt said in And here we go again G29 Bed Mesh leveling going bonkers:
Is Z16 the stepper driving the lead screw at X-60.5 and Z15 the stepper driving the lead screw at 360.5?
Thanks for leading me to it, the microstepping of 15 was a typo.
Corrected that and tried evrything again, but to no avail. Same problem persists.
And yes first z-motor is at x-60,5 and y 150 end the second at X360.5 and y150. -
@s1lencer Is there any chance you are skipping steps when probing the bed? What happens if you probe more slowly?
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@s1lencer said in And here we go again G29 Bed Mesh leveling going bonkers:
Thanks for leading me to it, the microstepping of 15 was a typo.
Corrected that and tried evrything again, but to no avail. Same problem persists.
And yes first z-motor is at x-60,5 and y 150 end the second at X360.5 and y150.So Z2 is at X-60.5 and Z4 is at X360.5?
I had a friend who was having a similar problem and it turned out that he had the Z motors wired the opposite of what he thought and thus each leveling pass made it worse.
It wouldn't hurt to double check your printer.
In your M92 command you have Z1600.00:1600. While I doubt this is a problem the correct syntax would just be Z1600 or Z1600.00 if you prefer the trailing zeros.
And just to make sure, Z1600 would be correct for 2mm (lead and pitch) lead screws - is that what you are using?
I haven't been able to determine what is causing your problem from examining the files you have posted.
Sorry about that.
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@s1lencer I had a similar issue I had what I thought was the Z0 (left stepper) actually wired to the Z1 (right motor) so the more I ran it the worse it got.
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@S1lencer
Your probespeed is higher than max Z-speed (1800 vs 1200)
Also you should remove the second values behind Z, these are only allowed for extruders. (eg. Z1200:1200)
See fcwilts remark.If the piezo probe needs such high speed probing your z-screws can't deliver you get skipped steps from the upward move and false triggers.
Maybe the new springsteel bed has added too much weight? => stronger steppers or higher current possible? -
@fcwilt said in And here we go again G29 Bed Mesh leveling going bonkers:
So Z2 is at X-60.5 and Z4 is at X360.5?
I had a friend who was having a similar problem and it turned out that he had the Z motors wired the opposite of what he thought and thus each leveling pass made it worse.
It wouldn't hurt to double check your printer.
In your M92 command you have Z1600.00:1600. While I doubt this is a problem the correct syntax would just be Z1600 or Z1600.00 if you prefer the trailing zeros.
And just to make sure, Z1600 would be correct for 2mm (lead and pitch) lead screws - is that what you are using?Yes all of it is correct an i corrected the M92.
Motors are correcly connected and i tried to plug them the other way around, that made things way worse as you and @Nurgelrot described.
But these things did sadly not help.What did the trick was to reduce the Probingspeeds to this:
M558 P1 R0.5 C"zprobe.in" H5 F600 T50000 ; set Z probe type to effector and the dive height + speedsand to give the steppers a little bit more juice upped the game hier from 1400 to 1600 and upped the drivespeed of the steppers to a max rate of 1600.
Now i finaly have a Mesh Level wich i can trust:
Thanks for all your thougts an the help.
Will mark this thread as solved.Greetings
Kai
