Jump to content
Ultimaker Community of 3D Printing Experts

G92 BUG in 5.2.x


Recommended Posts

Posted (edited) · G92 BUG in 5.2.x

Hi there!

 

We have installed an Buildtek Flexplate on our UM3 @work.

The problem with this setup is that automatic leveling does stop a bit too late so that the

first layer is pushed too hard into the bed.

 

Up to now we used the following startscript to increase the first layer height:

G91 ;Relative movement
G0 F15000 Z0.2  ; Move down the plate a bit
G92 Z0   ; Tell the printer that this is the zero position
G90 ;Disable relative movement

Unfortunately this doesn't work anymore since the last Update!

 

Why?

 

Thank you in advance,

ataraxis

Edited by ataraxis
  • Share this post


    Link to post
    Share on other sites
    Posted · G92 BUG in 5.2.x
    52 minutes ago, ataraxis said:

    Why?

     

    Because Firmware 5.2 does weird things if it processes a G92 command with Z parameter.

    You should  report it back to your reseller to take sure that someone is taking note of it.

     

    I don't know if it is a bug or intentional behavior, but you are not alone...

     

     

    • Like 1

    Share this post


    Link to post
    Share on other sites
    • 2 weeks later...
    Posted · G92 BUG in 5.2.x

    Have you turned off auto bed leveling on your UM3?

    I have read some posts about that, that after upgrading the saved values from the auto leveling are wrong and therefore the printer prints in the air because the offset is set to some phantasie values.

  • Share this post


    Link to post
    Share on other sites
    Posted · G92 BUG in 5.2.x

    This is how it looks like, btw: 

     

  • Share this post


    Link to post
    Share on other sites
    Posted · G92 BUG in 5.2.x

    I've noticed the inverse problem on my printer.  If autoleveling is not set to always, It tries to print at or below glass plate level, so it never extrudes and just scrapes on the glass.  Manual leveling doesnt fix the problem either.

     

    Putting it back to always makes it work properly.   

     

  • Share this post


    Link to post
    Share on other sites
    Posted · G92 BUG in 5.2.x

    Yeah, we saw both problems in fact, Yesterday I set it to weekly and it printed way too close - altough we leveled one Minute before.

  • Share this post


    Link to post
    Share on other sites
    Posted · G92 BUG in 5.2.x

    Interesting.

    The 5.2 thread issues never end.

     

    Mine is slightly different to yours in the video.

    mine goes to extrude the blob, Then the Bed drops for more extrusion. -Great. However when its finished...

    the z goes UP to the print core, and forces the blob into the nozel then drags the blob across the plate, Being covered in plastic it then goes to start printing and every print is ruined.

     

    Not going to be so eager to update my firmware in future thats for sure!

  • Share this post


    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

      • Talking additive | The 3D printing podcast
        Why should we be the only ones asking questions? Join us and ask Jabil all your questions on September 22nd 5pm CET
          • Like
        • 2 replies
      • Ultimaker masterclass: Optimizing your Ultimaker Cura workflow
        Save your seat for either broadcast on September 23.
        What will you learn?
        · Best practices for iterative print preparation and every lesson you should learn from each print
        · The right way to use per-object settings and when they are most useful
        · Easy-to-use resources for anyone who wants to develop their own printer definitions, plugins, or print profiles
        · How to optimize print profile settings and whether to “keep” or “discard” changes
        · When is the right time to export your drawing from CAD? (Based on Ultimaker Cura’s surprising power as 3D control software)
        · And a whole lot more tips and tricks!
         
        How can I join?
        This free masterclass will take place twice:
        1. 11am CEST (5pm SGT, 5am EDT)
        2. 5pm CEST (11am EDT, 8am PDT, 11pm SGT)
          • Like
        • 0 replies
      • Do you use 3D printing at work? Let us know
        It doesn't matter if you are using 1 Ultimaker or 10, there is inspiration in everything. We're looking for ...
        • 1 reply
    ×
    ×
    • Create New...