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First layer of file from Cura is printing too high


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Posted · First layer of file from Cura is printing too high

I am having difficulty printing from all Cura files. They all print too high on the z axis.  I am using  Creality Ender 3 for printing.  Any suggestions on how to fix this? (I am new to 3D printing.)

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    Posted · First layer of file from Cura is printing too high

    There is a setting in Cura under "Quality" called "Initial Layer Height".  It sets the height for Layer 1 and I think the default is .28mm.  It does not change automatically when you change the regular layer height.

    If the setting isn't visible, slide the cursor across the Quality bar and click on the gear icon.  Then check the box for Initial Layer Height.

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    • 2 months later...
    Posted · First layer of file from Cura is printing too high

    I was having the pretty much the exact same issue, Ender 3 - Cura 4.7. My initial layer height was set to .2mm, what ended up working for me was installing the z offset plugin from the cura marketplace, setting that to -0.1 and setting initial flow to %115. Gave me a good first layer with solid adhesion, didn't have to mess with the gcode or anything else. 

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    Posted · First layer of file from Cura is printing too high

    I can confirm that this bug is still present in the latest version of Cura. The piece of paper levelling system is irrelevant as the Cura generated G-code appears to fail to reset Z to 0 after the nozzle cleaning lines. The only work around I have for this so far, is to quickly reset the Z offset on the printer at the start of each print. 

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    Posted · First layer of file from Cura is printing too high

    If you could post a gcode file showing the behavior that would be good.

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    Posted · First layer of file from Cura is printing too high

    I have the exact same problem with my Ender 3 Pro.

     

    Here is my gcode :)

     

    ...
    ;Generated with Cura_SteamEngine 4.8.0
    M140 S65
    M105
    M190 S65
    M104 S210
    M105
    M109 S210
    M82 ;absolute extrusion mode
    ; Ender 3 Custom Start G-code
    G92 E0 ; Reset Extruder
    G28 ; Home all axes
    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
    G92 E0
    G92 E0
    G1 F1500 E-6.5
    ;LAYER_COUNT:508
    ;LAYER:0
    M107
    G0 F6000 X75.651 Y108.659 Z0.12
    ;TYPE:SKIRT
    G1 F1500 E0
    G1 F1200 X76.119 Y108.368 E0.011
    G1 X76.624 Y108.147 E0.022
    ...

     

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    Posted · First layer of file from Cura is printing too high

    You have to remember that Cura doesn't know where the build plate is.  It can only act on the settings.  The printer determines the first layer height through your leveling because it is you (or the ABL) that tells the printer "OK, you're at zero now".  You need to either adjust the ABL system or practice getting the feel of the piece of paper.

     

    That is the standard start code for an Ender 3 Pro.  (It was developed by "trouch.com" and submitted to Ultimaker for inclusion in Cura).  I can see that your retraction is set to 6.5 and your initial Layer Height is 0.12.

    The purge lines are 0.3 high and at a very heavy flow rate.  That is as it should be.  When the actual print starts the line

    G0 F6000 X75.651 Y108.659 Z0.12 tells the printer to move to the XY start point at a height of 0.12. Then there is a prime to E0 from E-6.5 and then the extrusions start with the print head at Z0.12.  THAT DOES NOT MEAN THAT THE PRINT HEAD IS 0.12 FROM THE PLATE.  It only means that it is 0.12 above Z0 and you told the printer where Z0 was.

     

    If the purge lines aren't printing correctly then change the four Z0.3 values to Z0.24. 

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    Posted (edited) · First layer of file from Cura is printing too high

    I try with the Z Offset plugin (-0.2mm for me) and it seems to work for the moment. I will let you know if it solves the issue.

     

    EDIT: Works fine with the offset 🙂

    Edited by ConanGuy
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    Posted · First layer of file from Cura is printing too high

    I guess the plugin is one way to go.  There are others.

    You could alter your Home Offset Z in the printer.

    You could adjust the Z offset in the printer ABL configuration (if you have one).

    You can push the Initial Layer Flow to 120% or something like that.

     

    It's all about getting that first layer down.  I started out by kicking the initial layer flow up.  I knew it was a crutch, but it got me going with good first layers.  As I got better and more consistent at bed leveling, I gradually dropped it back down and now it's at 100% with the rest of the layers.  A washed build surface, wiped down with alcohol, hairspray for adhesion, and a piece of parchment paper to level is what works for me.  Every machine and every person is at least a little different, you just need to find that one thing that works for you.

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