Jump to content

Cura Time Estimates - UltiGcode vs. RepRap?


eldrick

Recommended Posts

Posted · Cura Time Estimates - UltiGcode vs. RepRap?

I notice that the print time estimates change substantially depending on what type of code is generated.

With one print the estimated print time was 6hrs. 9min. when set to UltiGcode in the machine settings (for my UM2) vs. 5hrs. 20min. when set to RepRap Marlin. This is with 14.04RC1.

Can anyone tell me if this represents real printing time? Does the RepRap flavor of gcode really print around 15% faster than UltiGcode?

 

  • Link to post
    Share on other sites

    Posted · Cura Time Estimates - UltiGcode vs. RepRap?

    In general both printers can print at the exact same speed if you use the exact same acceleration and jerk settings and for the most part the acceleration and jerk settings can be set identically on both machines. I think only the retraction speed can be significantly faster on the UM2.

    Cura doesn't ask what the acceleration and jerk settings are so it must assume some values. These values only started getting used in the print time estimates recently. It made a huge improvement on time estimates.

    I suspect the main difference is because it probably uses these for UM2 but not for UM time estimates. I wish there was some advanced setting where you could tell cura what the acceleration and jerk settings are. The older Cura assumed infinite acceleration and so the estimates would be much too short.

     

  • Link to post
    Share on other sites

    Posted · Cura Time Estimates - UltiGcode vs. RepRap?

    Difference might be related to retraction, UltiGCode might calculate the retraction times wrong. Can you try with both retraction enabled and disabled to see what difference that makes?

     

  • Link to post
    Share on other sites

    Posted · Cura Time Estimates - UltiGcode vs. RepRap?

    Difference might be related to retraction, UltiGCode might calculate the retraction times wrong. Can you try with both retraction enabled and disabled to see what difference that makes?

     

    RepRap w/ Retraction enabled = 4h 3m

    RepRap w/ Retraction disabled = 4h 3m

     

    UltiGcode w/ Retraction = 4h 31m

    UltiGcode No Retraction = 4h 31m

     

     

  • 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
        • 48 replies
    ×
    ×
    • Create New...