Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
drumrboy44

Cura Unnecessary Jumping/Stringing Issue

Recommended Posts

I've been using the new Cura 13.06.04, and there are of course lots of advantages in speed and ease of use, but when printing certain hollow things, such as vases, the new Cura seems to be slicing very strangely.

For example, printing this Double Twisted Vase (http://www.thingiverse.com/thing:37327) at a layer height of 0.1mm and a shell thickness of 0.8 (at 210 C and 55 speed) results in all sorts of (thin) stringing across the center of the vase. This seems to be resulting from unnecessary jumps across points along the perimeter of the vase. In my experience, previous versions of Cura would simply slice a vase such that the nozzle would simply travel along the perimeter of the vase, and not jump across the central portion of the vase unnecessarily.

Is there some changed setting I am not seeing? I know there is no longer a "Joris" option, but I cannot think of an explanation for these print artifacts I am seeing in a relatively straight forward vase containing as many jumps as I am experiencing. Any guidance would be much appreciated.

 

Share this post


Link to post
Share on other sites

Cura is adding some extra infill right up against the inside of the wall where it thinks it is necessary because of overhangs. It does this without retraction, resulting in stringing across the middle as it moves around to print those parts. Not to mention that the extra bits of infill, while useful if you only care about the outside surface, make a real mess to the inside of hollow prints like this.

It's a pain, and would be the number one thing that I'd like to have changed in New Cura. I think it needs an option to turn off (or have the slicer simply have the smarts not to do it when printing with an open top/bottom on the print, and no infill.).

 

Share this post


Link to post
Share on other sites

I have this info to share CURA 13.06.4 , it seems you can remove the strings in the gcode generated if you set

Fill>Bottom/Top Thickness(mm) = o

see these two picts same object, http://www.thingiverse.com/thing:104694

one with 0.8 bottom fill THE OTHER with bottom fill ZERO.

not sure what this means but thought the info might be interesting and someone might be able to figure out how to print these things with out back-reving CURA

I think i will print the bottom and stop the print after about 0.4mm, then start over and print the hollow on and glue it to the base.

vase No bottom paths

vase with bottom paths

 

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

    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
      • 3 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!