Jump to content

modified start and end extrusion amount


Recommended Posts

Posted · modified start and end extrusion amount

first of all, I am printing big solid parts with walls and top bottom thickness increased to eliminate all infill. wall line count is 9 and top bottom is a number large enough to eliminate all infill. I have a print that has perfect extrusion or maybe a little bit of under extrusion when doing the top bottom sections that run through the part from top to bottom with no infill. the area around the drill holes with 9 walls is over extruding exactly where the path starts and ends. I have turned on coasting using the default volume and zero minimum distance before coasting. that helped with some parts of the print but it did not help with the circle walls over extruding. it happens where the path moves to smaller concentric circles. I think it is caused by oozing. dropping my temps helped a little bit. coasting helped. but I still have over extruding or oozing. turning the part cooling fans off made it much worse. I can't tune this out with retraction and prime amount because not every extrusion move uses retraction. Is there a way to remove volume from the start of every extrusion similar to coasting? or can I have cura retract for every extrusion then tune with negative prime amount? can I have modified extrusion flow for problem areas?


Printer is an ender 3 pro. capricorn bowden tube, slice CE heatbrake on the creality heatsink, microswiss copper block and nickel plated brass 0.4mm nozzle. extrusion width is 0.48mm and layer height is 0.2mm. retraction stock settings 4mm @ 40mm/s extra prime 0. coasting on, minimum distance before coasting 0. fan off. 210C nozzle 50C bed.

  • 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...