Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    Z Probe Position

    Tuning and tweaking
    2
    2
    423
    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.
    • GeoffCamps
      GeoffCamps last edited by

      A quick question regarding G31 - Defining the probe position.

      When defining the probe position with G31, what is the position relative to? The GCODE guide says relative to the 'empty tool'… where is this?
      Relative to currently selected tool?
      Relative to T0?
      Relative to 0,0,0 with respect to the G10 tool definition command?

      ; TOOLS
      M563 P0 D0 H1 ; Define tool 0
      G10 P0 X-20 Y0 Z0 ; Set tool 0 axis offsets
      G10 P0 S240 R180 ; Set tool 0 operating and standby temperatures
      M563 P1 D1 H2 ; Define tool 1
      G10 P1 X0 Y0 Z0 ; Set tool 1 axis offsets
      G10 P1 S240 R180 ; Set tool 1 operating and standby temperatures

      Probe will be at X-10 Y-20 relative to Tool 1 (which is at X0 Y0) so I would assume:

      G31 X-10 Y-20 Z1.5 P25

      Is this correct?

      Thanks in advance.

      Geoff.

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

        The probe offset given in G31, and the tool offsets given in G10, and the axis limits in M208 are relative to the print head reference point (HRP). You can choose the HRP to be wherever you like. On a single-nozzle printer, it would normally be the location of the nozzle. On my dual-nozzle printer, I have chosen it to be midway between the two nozzles.

        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
        • First post
          Last post
        Unless otherwise noted, all forum content is licensed under CC-BY-SA