Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Smart effector auto zero calibration.

    Scheduled Pinned Locked Moved
    Smart effector for delta printers
    2
    3
    300
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • gzundefined
      gz
      last edited by

      Hello, i might have a stupid question but i was wondering why can't i just use the smart effector to automatically "jog" to touch the build plate go up the thickness of a piece of paper and automatically set that as 0 with G92 Z0, so basically automatic delta calibration instead of doing it by hand like described here : https://duet3d.dozuki.com/Wiki/Calibrating_a_delta_printer i'd just use the macro and smart effector to :
      1- home
      2-disable mesh and all compensation
      3-M208 S1 Z-3 to temporarily allow Z moves down to Z=-3mm
      4-go down to z = 30
      5-Send G30 S-1 to probe the bed without resetting the Z=0 position
      6-go up the thickness of an a4 piece of paper
      7-G92 Z0
      8-home
      9- define and start auto mesh bed leveling.
      i know this might be stupid but it seems to be working in my macro, i appreciate any insight, thanks !

      dc42undefined 1 Reply Last reply Reply Quote 0
      • dc42undefined
        dc42 administrators @gz
        last edited by

        The Smart Effector doesn't trigger exactly when the nozzle first touches the bed. Due to flexibility in the printer mechanic and delays in the system, a G30 will stop when Z is slightly negative, perhaps -0.1mm. You need to measure this trigger height and put it in your G31 command. It shouldn't change unless you change the stiffness of the mechanics or the hardness of the bed.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

        1 Reply Last reply Reply Quote 0
        • gzundefined
          gz
          last edited by

          sorry for taking so long to answer, i've been hard at work. thanks a lot for the answer i will take the frame and mechanics flexibility into account !

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Unless otherwise noted, all forum content is licensed under CC-BY-SA