Bltouch help



  • Hello,

    Once again, thank you for your assistance.

    So I applied all your advice but kidney did not debug this problem of Bltouch Classic. I finally order the BLtouch Smart V2 which I hope will allow me to finally print.

    A +



  • @rafb for what it's worth problems with early versions of the BLTouch classic are very common. The newer version is much improved. Please let us know if it works out for you.



  • Hello,
    back from vacation, I just set up the new bltouch. It works perfectly!

    I still have a problem, why and how to optimize the flatness of my bed?0_1535901506033_Capture d’écran 2018-09-02 à 17.18.00.png



  • What is your printing surface and bed construction?



  • it's glass



  • That height map would indicate a possible mechanical problem. Perhaps something is misaligned or bent.

    How fast are you probing?



  • No, I do not think I have a mechanical problem.

    Look at this bug when I run "auto delta calibration" I have this result.
    0_1535924585574_Capture d’écran 2018-09-02 à 23.34.17.png

    But when I do "run mesh grid compensation", j'ai ce résultat.
    0_1535924762125_Capture d’écran 2018-09-02 à 17.18.00.png

    This error message G29
    0_1535924857907_Capture d’écran 2018-09-02 à 23.15.48.png

    D'ou vient le problème?



  • What are you using for your deployprobe.g and retractprobe.g macros?



  • ; deployprobe.g
    ; called to deploy a physical Z probe
    ;
    ; generated by RepRapFirmware Configuration Tool on Thu Aug 02 2018 09:35:23 GMT+0200 (CEST)
    ;M280 P3 S160 I1
    M280 P3 S10 I1

    ; retractprobe.g
    ; called to retract a physical Z probe
    ;
    ; generated by RepRapFirmware Configuration Tool on Thu Aug 02 2018 09:35:23 GMT+0200 (CEST)
    M280 P3 S90 I1



  • @rafb and how are you deploying and retracting in your bed.g? Are you manually calling it in your homing files or letting g30 handle it?



  • Are you manually calling it in your homing files or letting g30 handle it?
    I do not know and do not understand

    ; bed.g
    ; called to perform automatic delta calibration via G32
    ;
    ; generated by RepRapFirmware Configuration Tool on Thu Aug 02 2018 09:35:23 GMT+0200 (CEST)
    M561 ; clear any bed transform
    G28 ; home all towers
    M190 S60
    ;M98 Pdeployprobe.g; déployer sonde mécanique de Z
    ; Probe the bed at 6 peripheral and 6 halfway points, and perform 6-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 Y132.28 H0 Z-99999
    G30 P1 X121 Y69.86 H0 Z-99999
    G30 P2 X129.9 Y-75 H0 Z-99999
    G30 P3 X0 Y-150 H0 Z-99999
    G30 P4 X-129.9 Y-75 H0 Z-99999
    G30 P5 X-121 Y69.86 H0 Z-99999
    G30 P6 X0 Y59.15 H0 Z-99999
    G30 P7 X56.09 Y32.38 H0 Z-99999
    G30 P8 X64.95 Y-37.5 H0 Z-99999
    G30 P9 X0 Y-75 H0 Z-99999
    G30 P10 X-64.95 Y-37.5 H0 Z-99999
    G30 P11 X-56.09 Y32.38 H0 Z-99999
    G30 P12 X0 Y0 H0 Z-99999 S6
    ; 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)
    ;M98 Pretractprobe.g; rétracter la sonde mécanique Z
    G29

    ; homedelta.g
    ; called to home all towers on a delta printer
    ;
    ; generated by RepRapFirmware Configuration Tool on Thu Aug 02 2018 09:35:23 GMT+0200 (CEST)
    G91 ; relative positioning
    G1 S1 X705 Y705 Z705 F3600 ; move all towers to the high end stopping at the endstops (first pass)
    G1 X-5 Y-5 Z-5 F3600 S2 ; go down a few mm
    G1 S1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
    G1 Z-5 F6000 ; 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



  • I do not find why I have this problem. I will start from scratch.

    this bltouch seems not to be the best sensor for Duet



  • How do you have it wired?

    Does it light up at all?

    Can you send the servo commands to deploy and retract it?



  • the bltouch works great.

    @rafb said in Bltouch help:

    ; deployprobe.g
    ; appelé à déployer une sonde de Z physique
    ;
    ; généré par l' outil de configuration RepRapFirmware le 02 août 2018 09:35:23 Jeu GMT + 0200 (CEST)
    ; M280 P3 S160 I1
    M280 P3 S10 I1
    ; retractprobe.g
    ; appelé à se rétracter d' une sonde de Z physique
    ;
    ; généré par l' outil de configuration RepRapFirmware le 02 août 2018 09:35:23 Jeu GMT + 0200 (CEST)
    M280 P3 S90 I1


 

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