differences between manual and automatic leveling

[Gip_86]

Hello again,
so print is done and looks good, bed sems to be flat!

but why is this heightmap looking like this? It was made directly after the print. I'm very confused

[cosmowave]

@gip_86 That's the movement of your printhead!
Can you mount the sensor nearer to the shafts? That should increase accuracy.

[fcwilt]

@gip_86

The heightmap you posted reveals some bed irregularities, which are common.

It also shows the bed is not as level as you would like it.

You can read about using the manual bed leveling assistant here:

Bed Leveling Assistant

When can you update to firmware 3.3 (or later)?

Frederick

[Phaedrux]

Some of your config.g command syntax looks like RRF3 already.

M558 P1 C"zprobe.in" H5 F400 T6000

What firmware version are you actually using?
Can you share the results of sending M122 and M98 P"config.g"?

Can you confirm your coordinate system is right handed?

-X should move left, +X should move right
-Y should move to the nozzle to the front of the bed, +Y to the back.

[Gip_86]

@fcwilt

okay thank you for this information.
I think i can update this weekend. but i'm not shure if it works, because i have tried it befor i have set up the machine abd i always got errors. If i update to 3.3, can i use the old config or should i do all new?
(because i'm not so good writing these files)

@phaedrux

here is M122, (M98 will follow this day)

m122
=== Diagnostics === 
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.03 running on Duet WiFi 1.02 or later 
Board ID: 0JD0M-9P6M2-NWNS4-7J1FG-3S06R-9A0ZM 
Used output buffers: 3 of 24 (16 max) 
=== RTOS === 
Static ram: 25680 
Dynamic ram: 93680 of which 380 recycled 
Exception stack ram used: 604 
Never used ram: 10728 
Tasks: NETWORK(ready,524) HEAT(blocked,1236) MAIN(running,3780) IDLE(ready,160) 
Owned mutexes:
=== Platform === 
Last reset 09:34:28 ago, cause: software 
Last software reset at 2021-09-15 21:44, reason: User, spinning module GCodes, available RAM 10792 bytes (slot 1) 
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d 
Error status: 24 
Free file entries: 9 
SD card 0 detected, interface speed: 20.0MBytes/sec 
SD card longest block write time: 511.5ms, max retries 0 
MCU temperature: min 37.7, current 38.8, max 40.4 Supply voltage: min 23.8, current 24.2, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes 
Driver 0: ok, SG min/max 0/1023 
Driver 1: ok, SG min/max 0/1023 
Driver 2: standstill, SG min/max 0/1023 
Driver 3: ok, SG min/max 0/1023 
Driver 4: standstill, SG min/max not available 
Date/time: 2021-09-16 07:19:21 
Cache data hit count 4294967295 
Slowest loop: 227.29ms; fastest: 0.07ms 
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move === 
Hiccups: 0, FreeDm: 148, MinFreeDm: 124, MaxWait: 20085157ms Bed compensation in use: none, comp offset 0.000 
=== DDARing === 
Scheduled moves: 21661, completed moves: 21621, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 
=== Heat === 
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 
Heater 0 is on, I-accum = 0.9 
Heater 1 is on, I-accum = 0.4
 
- WiFi – 
Network state is running WiFi module is connected to access point Failed messages: pending 0, notready 0, noresp 0 
WiFi firmware version 1.26 
WiFi MAC address f4:cf:a2:ea:55:43 
WiFi Vcc 3.36, reset reason Turned on by main processor 
WiFi flash size 4194304, free heap 27016 
WiFi IP address 192.168.0.84 
WiFi signal strength -65dBm, reconnections 0, sleep mode unknown 
Socket states: 0 0 0 0 0 0 0 0

Yes i can confirm that my coordinate system is right handed. as you described.

[fcwilt]

@gip_86

Hi,

There are changes that need to be made to use v3 firmware but they are not extensive.

You could use the configuration utility to create a new set of configuration files.

Or you can edit your existing files.

I put off doing it for quite a while but I'm glad I finally did. Version 3 firmware has many good things.

You cannot for from v2.x to v3.3. You have to go from 2.x to 3.0 and then from 3.0 to 3.3.

[zapta]

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.

[Phaedrux]

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.x

For your config, might be a good idea to run through the configurator tool and generate a fresh set for RRF3.
https://configtool.reprapfirmware.org/Start

Backup 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

[Gip_86]

@phaedrux

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

[fcwilt]

@gip_86 said in differences between manual and automatic leveling:

@phaedrux

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

[Gip_86]

@fcwilt

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

[fcwilt]

@gip_86

Hmm...

Everything seems correct.

When are you getting this fault?

What is the exact message your are seeing?

Thanks.

Frederick

[Gip_86]

@fcwilt

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

[Blacksheep99]

@gip_86 Have you run a PID tune of your extruder and bed?

[Gip_86]

@blacksheep99

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?

[Blacksheep99]

@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.

[Gip_86]

@blacksheep99

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 280C

if i put it in override, what have i to put in?
and in config should only M501?

[fcwilt]

@gip_86

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

[Gip_86]

@fcwilt

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

[fcwilt]

@gip_86 said in differences between manual and automatic leveling:

@fcwilt

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

Well 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