Jump to content

Cura seems to be leaving a section of wall unprinted


flyfishingdad

Recommended Posts

Posted · Cura seems to be leaving a section of wall unprinted

I've been making cookie cutters and chasing my tail when it comes to a particular issue. At first I thought it was a calibration issue with the machine (ender 3) or some settings causing under extrusion. On the inside wall of the cutter there would always be a section in which the outside perimeter did not print. When reprinting after changing settings it would still be there, in the same spot, same issue. I am using Cura 3.6

20190208_234709.jpg

  • Link to post
    Share on other sites

    Posted · Cura seems to be leaving a section of wall unprinted

    Did you look at this in layer view?  Always check in layer view before you print it.  If it's missing in layer view then it will be missing on the print.  Guaranteed.

     

    Also look at the part in xray view.  If you see any red in this area then that's almost certainly the problem.  Post screenshots of the problem in layer view and normal view and xray view please and you should get lots of suggestions.

  • Link to post
    Share on other sites

    Posted · Cura seems to be leaving a section of wall unprinted

    Nope it looks all good in the layer preview. Shows a nice solid red shell line being laid down. The total thickness of the cutter is only 1.2mm at that point so it lays down a middle line and an outer shell line on either side. First thing I did was check to see if for some reason it was skipping totally. It goes over it, according to the preview, but if it is doing the same thing with the hotend, then for some reason it's not extruding any filament when it passes over that spot.

  • Link to post
    Share on other sites

    Posted · Cura seems to be leaving a section of wall unprinted

    So, something I noticed, when changing a couple settings. I tried optimizing printing order, it changed the way it printed it, and at first glance I thought, YES it worked, but upon a closer look, it simply moved the problem to another area. So, I looked at the the preview a little closer, and I noticed something. This new problem zone shares something in common with the previous problem zones. Both problem zones are right where the line starts. So for some reason, its starting to print there, but there is no filament coming out for the first 10 millimeters or so. I tried reducing retraction settings to 3mm, didn't fix it. (but it did bring back some stringing that my 5mm retraction settings eliminated) What could be the deal? There are other spots in the print where it starts a new line that DON'T have this problem, it is just one spot, and seems to happen on several of the cookie cutters I have printed.

  • Link to post
    Share on other sites

    Posted · Cura seems to be leaving a section of wall unprinted

    Assuming that you are using the right amount of retraction, the most likely reason for this is that you are using combing and it is doing a long un-retracted travel before the bad zone. So set the max combing distance without retract value to something like 10 and will make the combing use retraction for the longer travels.

     

    Screenshot_2019-02-11_07-24-02.png.e1265dcb73ee448e97893ab915cab9ca.png

  • Link to post
    Share on other sites

    Posted · Cura seems to be leaving a section of wall unprinted

    Xray looks good. Already tried changing distance before retract, so I turned off combing altogether. No luck there. Tried printing outside walls first, no luck. Ugh. Frustrating. 

  • 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 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
         
          • Like
        • 7 replies
      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
    ×
    ×
    • Create New...