Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
walele

Odd thing happening when scaling up, please take a look

Recommended Posts

Hello from a UM newbie!

The story so far:

- I created a 6cm-long "castle" model in Sketchup based on my daughter's requirements...SDB7986.thumb.jpg.86b408f8c79ad80ccc485dc69bee08f3.jpg

- I ran a test print at scale 1:2, and the complete gate was printed (obviously not too well because of the scale but that's not my point here), then tried at normal scale, and the vertical bars of the gate did not print at all!! :shock:

SDB7985.thumb.jpg.9f03d6e71ee04e0a381bad9b19502a44.jpg

Any ideas?

(I'm using RepG, if that helps...)

Thanks a lot!

valerie

Share this post


Link to post
Share on other sites

yup welcome to the crazy world of 3d modelling for 3d printing.

I guess the problem is, the geometry of these bars are over lapping of course, so these beautiful intersections in 3d space are being taken as negative zero space by the printer. there for... nothing.

two tips that have helped me before.

(1) try selecting one set of bars, horizontal for example and then move them out away from the other bars, maybe.. 5mm. the little space can help the printer see the definition between all the bars a little better.

(2) can work, print the castle with the opening, then copy and past the gate detail into a new sketch, print them as two seperate parts, i find a lot of the time, when i split complex models into a few core pieces, that makes the whole process easier for the printer.

final tip, try this guy. it is a meshing program for sketchup (free addon)

http://www.cadspan.com/tools

the idea is maybe for the future the best, taking a model with intersecting geometry and rapping a big plastic bag around it to create one clean mesh. so give that a spin and let us know how you get on.

best wishes.

Ian :D

Share this post


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
Sign in to follow this  

  • Our picks

    • Introducing Ultimaker Cura 3.6 | Beta
      Ultimaker Cura 3.6 | Beta is available. It comes with new features, bug fixes, and UX improvements. We would really like to have your feedback on it to make our stable release as good as it can be. As always, you can download the beta for free from our website, for Windows, MacOS, and Linux.
        • Like
      • 95 replies
    • Print Core CC | Red for Ruby
      Q: For some users, abrasive materials may be a new subject matter. Can you explain what it is that makes a material abrasive when you are not sure which print core to use?
      A: Materials which are hard in a solid piece (like metals, ceramics and carbon fibers) will generally also wear down the nozzle. In general one should assume...
        • Like
      • 30 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!