G29 G32 😱

    I have problems after the G32 I go down manually then I move with x but there is a difference in height, so I do a G29, I try again manually but it does not compensate for anything because it does?
    thank you

  • @nemecek

    You need to give more details like what type of machine and Duet board.

  • yes sorry duet wifi delta machine

  • good morning can you help me please i can't get a good level. I don't understand why I'm wrong. I put you my configurations
    config-override.g file generated in response to M500 at 2020-07-04 21:55
    ; This is a system-generated file - do not edit
    ; Delta parameters
    M665 L520.889:520.889:520.889 R272.296 H365.630 B200.0 X-0.273 Y-0.895 Z0.000
    M666 X2.672 Y-0.944 Z-1.727 A-0.99 B-1.14
    ; Heater model parameters
    M307 H0 A90.0 C700.0 D10.0 S1.00 V0.0 B1
    M307 H1 A340.0 C140.0 D5.5 S1.00 V0.0 B0
    M307 H2 A340.0 C140.0 D5.5 S1.00 V0.0 B0
    M307 H4 A340.0 C140.0 D5.5 S1.00 V0.0 B0
    M307 H5 A340.0 C140.0 D5.5 S1.00 V0.0 B0
    M307 H6 A340.0 C140.0 D5.5 S1.00 V0.0 B0
    M307 H7 A340.0 C140.0 D5.5 S1.00 V0.0 B0
    G10 L2 P1 X0.00 Y0.00 Z0.00
    G10 L2 P2 X0.00 Y0.00 Z0.00
    G10 L2 P3 X0.00 Y0.00 Z0.00
    G10 L2 P4 X0.00 Y0.00 Z0.00
    G10 L2 P5 X0.00 Y0.00 Z0.00
    G10 L2 P6 X0.00 Y0.00 Z0.00
    G10 L2 P7 X0.00 Y0.00 Z0.00
    G10 L2 P8 X0.00 Y0.00 Z0.00
    G10 L2 P9 X0.00 Y0.00 Z0.00

    RepRapFirmware height map file v2 generated at 2020-07-04 22:16, min error -0.350, max error -0.048, mean -0.185, deviation 0.068
    0, 0, -0.101, -0.080, -0.100, -0.124, -0.125, 0, 0
    0, -0.189, -0.162, -0.203, -0.217, -0.238, -0.322, -0.216, 0
    -0.134, -0.091, -0.088, -0.090, -0.103, -0.086, -0.185, -0.208, -0.141
    -0.138, -0.163, -0.162, -0.192, -0.251, -0.273, -0.350, -0.323, -0.264
    -0.135, -0.048, -0.075, -0.100, -0.072, -0.116, -0.175, -0.190, -0.250
    -0.163, -0.172, -0.213, -0.250, -0.212, -0.286, -0.276, -0.264, -0.304
    -0.150, -0.128, -0.136, -0.176, -0.184, -0.205, -0.188, -0.223, -0.246
    0, -0.165, -0.172, -0.176, -0.239, -0.252, -0.237, -0.289, 0
    0, 0, -0.211, -0.189, -0.223, -0.198, -0.173, 0, 0

    ; called to perform automatic delta calibration via G32
    ; generated by RepRapFirmware Configuration Tool v3.1.3 on Sat Jul 04 2020 14:57:29 GMT+0200 (heure d’été d’Europe centrale)
    M561 ; clear any bed transform
    G28 ; home all towers
    ; Probe the bed at 10 peripheral and 6 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 Y88.34 H0 Z-99999
    G30 P1 X62.31 Y85.77 H0 Z-99999
    G30 P2 X114.13 Y37.08 H0 Z-99999
    G30 P3 X114.13 Y-37.08 H0 Z-99999
    G30 P4 X70.53 Y-97.08 H0 Z-99999
    G30 P5 X0 Y-120 H0 Z-99999
    G30 P6 X-64.49 Y-88.76 H0 Z-99999
    G30 P7 X-85.63 Y-27.82 H0 Z-99999
    G30 P8 X-77.81 Y25.28 H0 Z-99999
    G30 P9 X-47.8 Y65.79 H0 Z-99999
    G30 P10 X0 Y33.72 H0 Z-99999
    G30 P11 X46.71 Y26.97 H0 Z-99999
    G30 P12 X51.96 Y-30 H0 Z-99999
    G30 P13 X0 Y-60 H0 Z-99999
    G30 P14 X-31.82 Y-18.37 H0 Z-99999
    G30 P15 X-26.38 Y15.23 H0 Z-99999
    G30 P16 X0 Y0 H0 Z-99999 S9
    ; Use S-1 for measurements only, without calculations. Use S4 for endstop 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)

  • rather than S9, use either S6 or S8 in your bed file

  • hi i tried but i have the same result

  • Moderator

    @nemecek As your bed mesh looks like this:
    I'd say you have some serious backlash in at least one of your axes, and it's going to be difficult to get a decent autocalibration result. Find the cause of the movement, fix it, then try again.


  • livello.png

  • then I don't understand they say to use M401 M402
    not to use Deployprobe.g anymore

    where should i put m401 m402? I have to delete the Deployprobe.g files
    M280 P7 S10 I1
    also say to put g30 in homedelta.g?
    what a mess I have a bltouch 3.1
    can you help me please thanks
    106248782_2333741713600841_6736344703903909763_n.jpg config.TXT

  • Moderator

    @nemecek said in G29 G32 😱:

    where should i put m401 m402? I have to delete the Deployprobe.g files
    M280 P7 S10 I1

    Deployprobe.g and retractprobe.g are still required and they need the M280 commands for the Bltouch in them. What it is saying is that you don't need to use M98 to call those files manually anymore nor do you need to use M401/M402 because when using probe type 9 for the BLtouch the pin is deployed automatically when needed.

    For a delta, the build quality must be very near perfect for good results. This is just the nature of the beast. Certain things like a probe offset from the nozzle are inherently problematic for a delta and is why a nozzle contact probe is strongly recommended.

    Go through these documents carefully and examine every part of your build.


  • ok thank you

  • @Phaedrux
    could you make a correction in the area where the highest level?

  • Moderator

    I'm not sure what you mean.

  • @Phaedrux is there a way to adjust the automatic calibration at that point where only higher?

  • Moderator

    Yes you can edit the heightmap.csv to edit a point.

  • @Phaedrux ok if i am too high with the nozzle do i have to raise the values ​​in that area? how strange that does not work well. the generated map looked good had to print well

  • If the nozzle is too high at a point, you need to reduce the value in the csv file. Positive: offset above the nominal zero height Negative: offset below nominal zero height.

  • @oliof OK thanks. I will try today. have you seen the photo of my map? what do you think should not calibrate well? I saw worse maps with good results in the end 😭😭

  • I suggest you read this article http://boim.com/DeltaUtil/CalDoc/Calibration.html which shows well what kind of errors in probing are introduced by what mechanical issues and take it from there.

  • @oliof
    ok thanks I don't think I understand correctly I send you a photo to understand better
    the part where it does not print well (too low) should I raise the values that I put in the square?

  • @nemecek you could do that, or run the delta autocalibration multiple times until it converges to flat printing

  • @oliof OK thanks. when you talk about delta calibration. you mean the G32 to do it several times?

  • @nemecek yes until the numbers stop changing. If they don't stop changing after 4 it 5 runs you very likely have a mechanical issue (something loose, backlash, whatever) you need to solve.

  • @oliof ok thanks for the explanation I try now

  • 10/07/2020 à 19:16:24 G32
    Calibrated 9 factors using 19 points, deviation before 0.046 after 0.044
    10/07/2020 à 19:10:43 G32
    Calibrated 9 factors using 19 points, deviation before 0.048 after 0.043
    10/07/2020 à 19:05:44 G32
    Calibrated 9 factors using 19 points, deviation before 0.062 after 0.044

Log in to reply