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With auto level probe, prints are skewed?

I put in a 3d touch probe specifically for auto bed leveling. After leveling the range is something like -0.05 to +0.148, about one layer height. I've set my z offset correctly.

Here's my problem, I have performed 3-4 mesh validations with a 0.2mm layer height, on the left side of my bed, it seems to grind the nozzle. On the right, it's too far away and the filament doesn't stick to the bed.

On the bed map, the left side is a bit higher than the right, but shouldn't the mesh take care of that?

I will note that I think my z couplers are stretched so I ordered a new set.

So any clues into why it would print like this are welcome.

Comments

  • Der_MuckDer_Muck ๐ŸŒŸ Super Member ๐ŸŒŸ Posts: 238
    Without your start skript nobody knows how your system works.
  • Laser8302Laser8302 Member Posts: 28
    edited May 12
    Recv: Bed Topography Report:Recv: Recv: (0,5)                                   (5,5)Recv: (40,264)                                (264,264)Recv:   0.038    0.049    0.104    0.156    0.139    0.100Recv: Recv:   0.066    0.101    0.178    0.213    0.213    0.191Recv: Recv:   0.078    0.140    0.243    0.247    0.274    0.243Recv: Recv:   0.076    0.149    0.254    0.289    0.290    0.273Recv: Recv:   0.048    0.141    0.240    0.269    0.266    0.261Recv: Recv: [ 0.005]   0.094    0.158    0.199    0.227    0.201Recv: (40,41)                                    (264,41)Recv: (0,0)                                     (5,0)Recv: ubl.mesh_is_valid = 1Recv: ubl.storage_slot = 1Recv: echo:Bed Leveling OnRecv: echo:Fade Height Off
    Here's what happens with a G26 (mesh validation)
    As you can see on the left, there's some nozzle grinding and on the right nothing sticks. In the center it's ok. 

    Also in my start script I made sure the last command is M420 S1 to make sure the mesh is on.

    Also here is my bed level graph:

    Post edited by Laser8302 on
  • Der_MuckDer_Muck ๐ŸŒŸ Super Member ๐ŸŒŸ Posts: 238
    Hmm I dont know what G26 is, just try to use UBL, that will work.
    What do you use, BLtouch or IR?
  • Laser8302Laser8302 Member Posts: 28
    I've got a bl touch (3d touch, from china... )
    I think the old z endstop is blocking one side of the gantry from going down and causing the uneven printing. The side that is higher/not grinding the nozzle is where the z endstop block is.
    I also have very stretched couplers so I'm going to replace those.
  • cs2000cs2000 ๐ŸŒŸ Super Member ๐ŸŒŸ Posts: 51
    Will almost certainly be that old Z endstop mate. Standard practice is to remove it totally, or move it down on the adjustment screws so its not making contact any longer.
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