differences between manual and automatic leveling
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When dealing with bed mesh, it useful to remember that what we measure is not just the characteristics of the bed but also all the errors between the bed and the sensor, including x,y,z mechanical system, head errors (e.g. does it sags and tilts) and error nozzle and the sensor (e.g. if the head tilts) and sensor errors (how accurate it is, is the bed surface compatible with it, etc).
That's why we sometimes see measurement results that wouldn't make sense if we would measure the bed alone.
Having some experience with HEVO, and it's motion mechanism tends to be soft (compared to more modern extrusion+rail based designs), especially the X rods, which are thinner (8mm?) and sag or cause head tilting. I would suggest to place the sensor to have zero y offest rather than zero x offset since this will cancel better the effect of head tilting.
BTW, do you use two independent drivers for the Z motors? If you do, the Duet can do auto 'real' leveling between the two motor which is nice and reduces the compensation that the mesh need to do.
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Updating to 3.3 isn't that hard really, but it can be confusing if you're really used to the RRF2 way. I do recommend updating though, 2.03 is ~2 years old.
If you still have access to DWC. Upload these 3 zip files, one at a time in the system tab. Don't extract them first. Reboot after each. Use M115 in the gcode console to verify the firmware has been applied.
https://github.com/Duet3D/RepRapFirmware/releases/download/2.05.1/Duet2Firmware-2.05.1.zip
https://github.com/Duet3D/RepRapFirmware/releases/download/3.0/Duet2and3Firmware-3.0.zip
https://github.com/Duet3D/RepRapFirmware/releases/download/3.3/Duet2and3Firmware-3.3.zip
That will get your firmware and DWC up to date.You can see the change logs here:
https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.xFor your config, might be a good idea to run through the configurator tool and generate a fresh set for RRF3.
https://configtool.reprapfirmware.org/StartBackup your existing config files in the sys folder in case you want to switch back to RRF2. It’s easy to switch back and forth, just upload the zip file for the version you want and then upload your config files.
These documents will come in handy during the conversion.
https://duet3d.dozuki.com/Wiki/RepRapFirmware_3_overview
https://duet3d.dozuki.com/Wiki/Gcode -
ufff spent the 4 last hours to upgrade to 3.3. holy sh... nothing was working anymore. had to switchover to bossa.
Now it works ok. but i get a heater fault. i will try to compare to my old config
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@gip_86 said in differences between manual and automatic leveling:
ufff spent the 4 last hours to upgrade to 3.3. holy sh... nothing was working anymore. had to switchover to bossa.
Now it works ok. but i get a heater fault. i will try to compare to my old config
If you copy-and-paste your new config.g file here (using the </> tag) we can all pitch in and take a look.
It's very likely just a syntax error.
Frederick
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so this is the new config. I hava adjusted all i see to fit with the old config
; Configuration file for Duet WiFi (firmware version 3.3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.3.2 on Sat Sep 18 2021 02:15:19 GMT+0200 (Mitteleuropäische Sommerzeit) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"HeVo" ; 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 M575 P1 B57600 S1 ; 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 M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E396.00 ; set steps per mm M566 X21000.00 Y21000.00 Z180.00 E54000.00 ; set maximum instantaneous speed changes (mm/min) M203 X21000.00 Y21000.00 Z180.00 E300000.00 ; set maximum speeds (mm/min) M201 X4000.00 Y4000.00 Z3000.00 E4000.00 ; set accelerations (mm/s^2) M906 X1000 Y1000 Z1000 E800 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z-1 S1 ; set axis minima M208 X205 Y202 Z150 S0 ; set axis maxima ; 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 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M558 P1 C"zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds G31 P500 X40 Y-35 Z2.04 ; set Z probe trigger value, offset and trigger height M557 X15:205 Y15:195 S20 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4400 ; 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 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"e0temp" Y"thermistor" T100000 B4400 ; 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 F1 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 F0 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 -
Hmm...
Everything seems correct.
When are you getting this fault?
What is the exact message your are seeing?
Thanks.
Frederick
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hi Frederick
this is the message i got:
Error: Heater 0 fault: temperature rising much more slowly than the expected 1.3°C/sec
Resume state saved
Warning: Tool 0 was not driven because its heater temperatures were not high enough or it has a heater fault -
@gip_86 Have you run a PID tune of your extruder and bed?
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yes i have one done for the heater and the bed.
Bed:
Warning: heater behaviour was not consistent during tuning
Auto tuning heater 0 completed after 4 idle and 25 tuning cycles in 5317 seconds. This heater needs the following M307 command:
M307 H0 B0 R0.957 C113.0 D6.66 S1.00 V24.2
Edit the M307 H0 command in config.g to match this. Omit the V parameter if the heater is not powered from VIN.Heater:
M307 H1 B0 R2.746 C97.9:59.2 D5.41 S1.00 V24.2
one question:
after firmwareupdate now it takes very long to heat up the bed. is this normal? -
@gip_86 Have you got a config-override.g in your sys folder with the output of the tuning? You also need a M501 in your config.g if you do.
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no, i have put the M307 in config directly..
; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4400 ; 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 M307 H0 B0 R0.957 C113.0 D6.66 S1.00 V24.2 ; 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 B4400 ; 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 M307 H1 B0 R2.746 C97.9:59.2 D5.41 S1.00 V24.2 ; disable bang-bang mode for heater and set PWM limit M143 H1 S280 ; set temperature limit for heater 1 to 280Cif i put it in override, what have i to put in?
and in config should only M501? -
It's perfectly fine to put everything in config.g
The config-override.g file is just to make it a bit easier as a M500 after certain operations makes the needed entries in config-override.g.
I have never used config-override.g - I move the contents to config.g and delete config-override.g
Frederick
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after pid tuning i have decided to add "R4700 behind the M308.
Now bed has heated really fast. Is there something agains R4700? I had this thing in my old config.
Now it looks like:
M308 S0 P"bedtemp" Y"thermistor" T100000 B4400 R4700
M308 S1 P"e0temp" Y"thermistor" T100000 B4400 R4700 -
@gip_86 said in differences between manual and automatic leveling:
after pid tuning i have decided to add "R4700 behind the M308.
Now bed has heated really fast. Is there something agains R4700? I had this thing in my old config.
Now it looks like:
M308 S0 P"bedtemp" Y"thermistor" T100000 B4400 R4700
M308 S1 P"e0temp" Y"thermistor" T100000 B4400 R4700Well the R setting is supposed to match the values of the resistors on your board.
If you don't have a R setting it is supposed to default to the correct values for your board.
Frederick
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Ok, machine is now running as aspected (but without mesh compensation)
I also have designed a new holder for the probe.
So and what are the best steps for next?
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@gip_86 said in differences between manual and automatic leveling:
So and what are the best steps for next?
Have you made the configuration settings needed to use the Manual Bed Leveling Assistant?
Once that is done and the bed is level you should then proceed to get Mesh Bed Compensation working.
Frederick
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@fcwilt
ok i had done the neeed config and have leveled it. after several leveling, best i could do was about 0,03mm to adjust.then i had done a G29 and heres the height map:
Any idears?
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I have four different printers all with cast aluminum tool plate for the bed and they all are different.
I haven't taken the time to find out why as they all print ok.
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Ok, I also have a casted aluminium plate which is on both sides milled. I think my FR4 plate is the reason why it is so different. It’s a bit translucent.
Tomorrow I will give a try with the mesh.
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@gip_86 said in differences between manual and automatic leveling:
Ok, I also have a casted aluminium plate which is on both sides milled. I think my FR4 plate is the reason why it is so different. It’s a bit translucent.
Tomorrow I will give a try with the mesh.
I would agree the FR4 is likely the issue.
Frederick
