cura trouble



  • I've taken a quick look at the gcode and there are some lines whose extrusion length is less than the resolution of your extruder (i.e your extruder appears to be around 100 steps/mm) but some of the extrusions are less than 0.01 mm in length so you may possibly getting underextrusion. This is a drawback of using relative extrusion when the extruder resolution is low.

    Look at the E values shown on the LHS of this image and you will see what I mean...

    0_1547072780702_Screenshot_2019-01-09_22-25-45.png



  • What firmware version are you using. There was a bug fixed in 2.02 that should have helped in these cases. You could also increase your extruder microstepping to get a higher E steps per mm value. x64 or x128 seems to help without hitting the CPU too hard.



  • Every other version update, CURA resets the material settings back to 3mm filament without any feedback to the user, make sure this has not happened to you and it's still set to 1.75mm



  • I've had multiple objects slice with missing layers for no reason. Have to play with scale and horz. Expansion. And I'm talking simple stuff.



  • @phaedrux am on the latest version released 2.02(RTOS) (2018-12-24b1).
    Increasing the micro steps will solve my issue sir?



  • @naqaj i had made it to 1.75 while making the custom machine profile on latest version. let me confirm it again. Thank you



  • @burtoogle i will try increasing the micro steps like @Phaedrux suggested.



  • @paul12 Worth a shot.

    You can test it by adding M350 E128 after your M92 entry. No other changes needed.

    I also just noticed that you have interpolation disabled with I0 on your M350 line. That's probably making your printer much noisier than it need be.

    I would recommend you change your lines to be

    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping without interpolation
    M92 X80 Y80 Z80 E100.7200 ; Set steps per mm
    M350 E128
    


  • @phaedrux WOWWW!!! adding the interpolation just made the printer SUPER silent.

    But still there is under extrusion 😞



  • Correct me if I am wrong but doesn't interpolation only work when the steps is 16?


  • administrators

    @burtoogle said in cura trouble:

    Correct me if I am wrong but doesn't interpolation only work when the steps is 16?

    On the Duet WiFi/Ethernet, that's correct. On the Maestro, interpolation works at all microstep settings.



  • anyone using cura for delta printers? Or please do recommend any other slicer for delta printers compatible with Duet ( Other than slic3r 🙂 )



  • @paul12 , I have 2 delta printers with Duets and I only use Cura. I (almost invariably) get beautiful prints with the majority of flaws being due to the mechanical limitations of the printers rather than poor gcode from Cura or problems with the Duets.



  • @paul12 said in cura trouble:

    @phaedrux WOWWW!!! adding the interpolation just made the printer SUPER silent.

    But still there is under extrusion 😞

    Yes, you need to increase the microsteps or not use relative extrusion mode (I think).


  • administrators

    @burtoogle said in cura trouble:

    Yes, you need to increase the microsteps or not use relative extrusion mode (I think).

    Changing to relative extrusion mode won't make any difference, unless that affects the way that Cura does its calculations, causing it to command different extrusion amounts in the GCode.



  • @paul12 I was a die hard Simplify3d user on my corexy. Mainly because I wanted my moneys worth. But it was the only slicer that gave me great prints consistently.

    Now I’ve built my large delta I’m really struggling to get good prints with Simplify3d. So last night I used Cura for the first time in well over a year and I have to say the print came out spotless. It was probably the best print I have ever had, nothing to clean up, no blobbing or stringing and the sides were just amazing.

    Think I’ll be using Cura more often.



  • @richardmckenna said in cura trouble:

    @paul12 I was a die hard Simplify3d user on my corexy. Mainly because I wanted my moneys worth. But it was the only slicer that gave me great prints consistently.

    Now I’ve built my large delta I’m really struggling to get good prints with Simplify3d. So last night I used Cura for the first time in well over a year and I have to say the print came out spotless. It was probably the best print I have ever had, nothing to clean up, no blobbing or stringing and the sides were just amazing.

    Think I’ll be using Cura more often.

    My experiences exactly.

    I still use S3D for "3dlabprint" stuff, because they ship .factory files that are very complex, multi process, lots of subtle settings, etc.

    For EVERYTHING else, I use Cura.


 

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