Jump to content

Cura 5.2 Cancel round value to get accuracy


Recommended Posts

Posted · Cura 5.2 Cancel round value to get accuracy

I need parts with several different measurements, these measurements are not multiples of the nozzle diameter.
For example, I have a 5mm square, Cura makes it 4.8mm. (nozzle 0,4mm)
Where do I configure Cura to keep only the measurement of the part?

  • Link to post
    Share on other sites

    Posted · Cura 5.2 Cancel round value to get accuracy

    If you have a 5mm square and your outer wall is 0.4mm (not nozzle size - this is the outer wall line width) then Cura will have your printer print a .4mm line as the outer wall and the movement of the gantry - the XY movement of the nozzle will cover 4.6mm (5.0mm - 0.4mm).  The 0.4mm removed is .2mm on each side.  In other words it will trace out a square that is .2mm moved inward from the edge as the radius of the "line width"/nozzle is 0.2mm.


    Anyway my point is cura does the math assuming the printer is perfect.


    Having said all that - it looks like you have an S5 so if you want accuracy - if you want dimensional accuracy - you should be using the "engineering" profiles.  Cura has a few engineering profiles for most materials and most printcore sizes.  The visual quality is worse for these profiles but the dimensional accuracy is quite a bit better.  Try it.


    In other words the part might look a little worse but the micrometer calipers will be happier.


    If that's not enough accuracy for you then you probably have to alter your model by the amount of error.  It's sad to say it but that's the best way to get the next level of accuracy after engineering mode.  And realize that all other technologies (like injection molding) require someone to tweak the cad models so that the final printed part meets the design goals.

  • 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

      • 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
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 9 replies
    • Create New...