Jump to content

G29 Bed Leveling not working


Foxtrix

Recommended Posts

Posted · G29 Bed Leveling not working

Hello! I have been struggling trying to get my bed probing to work on my ender 3s1! On my printer the probe is working perfectly, and I have my calibrated my Z Probe position on the bed and I have made a 3 x 3 mesh. Just when I start a print my probe goes to the middle and probes once and goes to the side and starts printing! What do you think the problem is? Thank you for reading this! 

Start GCode: 

; Ender 3 S1 Pro Custom Start G-code
G92 E0 ; Reset Extruder
G28 ; Home all axes
G29 ; ABL
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish

 

  • Link to post
    Share on other sites

    • 2 weeks later...
    • 1 year later...
    Posted · G29 Bed Leveling not working

    My Ender3V2 is doing the same thing.

    Are you running stock firmware?

    I'm using the latest edition of mriscoc's professional firmware.  Maybe that's the problem?

  • Link to post
    Share on other sites

    Posted (edited) · G29 Bed Leveling not working

    This is from the MarlinFW site:

     

    "By default G28 disables bed leveling. Follow with M420 S to turn leveling on.
    With ENABLE_LEVELING_AFTER_G28 leveling will always be enabled after G28.
    With RESTORE_LEVELING_AFTER_G28 leveling is restored to whatever state it was in before G28."

     

    Both M420 and G29 can take several different parameters.

    (My piece of paper only requires that I remember where I put it.)

    Edited by GregValiant
  • Link to post
    Share on other sites

    Posted · G29 Bed Leveling not working

    Using the stock firmware on my Ender-3 V2 Neo, running G28 then G29 worked fine. You don't need to use M420 to re-enable ABL after running the home command, running G29 does that automatically (duh).

     

    Can't speak for the E3V2Neo (it has since departed this world) but my Ender-3 V3 SE's firmware does have RESTORE_LEVELING_AFTER_G28 enabled.

     

    6 hours ago, GregValiant said:

    My piece of paper only requires that I remember where I put it.

    Is your piece of paper used to level a bed with a PC metal plate which can be affected by the heat?

  • Link to post
    Share on other sites

    Posted · G29 Bed Leveling not working

    Yes.  However there is a piece of glass on top of the metal plate.  It's a composite alumina/silica system and must be at printing temperature for leveling because it changes shape while heating as the coefficients of expansion are different for each material.  The nozzle expands as well.

     

    The only downside is that with the bed at 83° for PETG...I can burn my knuckles.

    • Like 1
    Link to post
    Share on other sites

    Posted · G29 Bed Leveling not working
    18 minutes ago, GregValiant said:

    The only downside is that with the bed at 83° for PETG...I can burn my knuckles.

    I think that applies to any material of print bed.

     

    But when you have a magnetic sheet and the best way to get the print off is to grab the print bed and flex it... changing nozzles isn't the only reason I got rigger's gloves.

  • Link to post
    Share on other sites

    Posted · G29 Bed Leveling not working

    You all use gloves? I’ve just been keeping a bucket of ice and aloe next to the printer for relief post maintenance. 
     

    I’m clearly behind the curve on smarts in this group. That said, I have been grabbing hot metal bare handed for a few years (mostly because I’m stupid). I guess I’m used to it. 

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • UltiMaker Cura 5.8 beta released
        Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
          • Like
        • 1 reply
      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
    ×
    ×
    • Create New...