Jump to content
UltiMaker Community of 3D Printing Experts

Cura erroneously thinks model is too large to print and refuses to build gcode.


calinb
 Share

Recommended Posts

Posted · Cura erroneously thinks model is too large to print and refuses to build gcode.

This bug appears to have crept-in sometime between 13.10 and 14.01. I used Rep-Host to confirm the tool paths and the following.

My Ultimaker can print over a full 210 mm x 210 mm range in X/Y and I often use all of its potential. When Cura 14.01 Machine Settings are set to 210 x 210, Cura reports that a 209.09 mm x 209.09 mm model (as reported by both Cura and netfabb) is too large. It also complains when the Machine Settings are set to 211 x 211. Settings of 212 x 212 are required before Cura 14.01 will accept my 209.09 mm x 209.09 mm model and build gocde. Cura 13.10 works properly and centers the model when set to 210 x 210.

However, setting the bed width and depth to 212 x 212 in 14.01 does not result in a successful work-around for Cura's spatial pessimism, because the oversize machine settings improperly "bias" the placement of the model in a positive x and y direction and the print cannot centered manually on the bed. It is impossible to locate the model closer than about 1 or 2mm from the X=0 or Y=0 edges. With respect to supporting maximum-size models, it would be nice if 14.01 could be returned to the capabilities of 13.10.

I heuristically (and painstakingly) found that, for my 209.09 mm x 209.09 mm model, a work-around can be realized in 14.01 by enabling the Machine center 0.0 option, setting the bed size to 421x421, and manually moving the placement of the model to the maximum available X/Y location (the upper right corner). Without the use of Rep-Host to check the resulting gcode, this is not a reliable procedure.

Finally, regardless of Cura's intentions to not let me print outside of its calculated box, I'd prefer to be able to override Cura's limiting behavior when models are right at (or just past) the hairy edge of being over-size, because a slight excursion "out of bounds" for a brim can be safely handled by the printer x/y stop switches. In my case, I usually build my own brim and bed adhesion features (and support structures too) into my models, but Cura 14.01 refuses to build 209.09 mm x 209.09 mm gcode at all when set to 210 x 210.

 

  • 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
     Share

    • Our picks

      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 10 replies
      • UltiMaker Cura 5.3.0-Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 16 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 14 replies
    ×
    ×
    • Create New...