Jump to content
Ultimaker Community of 3D Printing Experts
lukem96

Why is cura doing this to me?

Recommended Posts

Hello everyone!

Right i am printing a object with my logo on it, i want it to cut out of the object and this was done on both blender and 3ds max. When on Cura on the normal mode its just how i want it, the logo looks like its going to cut out on the object, but when you go into layers mode it does the opposite, cuts out whats round the logo and fills in the logo??

5a33106477672_logo-normalmode.thumb.png.45e6c974a03b830157dc48758f461e3d.png

5a3310649c592_logo-layermode.thumb.png.6110fef360878802f11e028aa3c0670b.png

If anyone can shed some light onto why it is doing this, that would be great,

thank you very much!

5a33106477672_logo-normalmode.thumb.png.45e6c974a03b830157dc48758f461e3d.png

5a3310649c592_logo-layermode.thumb.png.6110fef360878802f11e028aa3c0670b.png

Share this post


Link to post
Share on other sites

I don't know blender or 3dsmax.

What i mean by normals is that the inside of your logo looks like it's considered as the inside of the model, but it should be the outside.

My guess is that Cura detects the shell of the logo as being an inner shell and there for it adds some infill. (maybe i'm totally wrong) but it's the feeling i have.

I think in meshmixer you can flip normals. There's probably a way to do this in blender too ?

Share this post


Link to post
Share on other sites

Your model is wrong. It's not cura doing this to you, it's blender / 3ds max doing this to you. Try viewing the model in cura 15.04 in x-ray mode. If there are red areas, the model is wrong (we haven't ported that mode to the new cura yet, it's a WIP).

Take a look at this excellent writeup about non-manifold meshes; http://blender.stackexchange.com/questions/7910/what-is-non-manifold-geometry

Share this post


Link to post
Share on other sites

Thanks for the replies! still really struggling, there are red areas in x ray mode.

I have tried netfab and it hasn't fixed them unfortunatly.

I have tried flipping the normals in blender, i think i was doing it right, and nothing was changing.

Any advice is greatly appreciated!

Share this post


Link to post
Share on other sites

Your model is wrong. It's not cura doing this to you, it's blender / 3ds max doing this to you. Try viewing the model in cura 15.04 in x-ray mode. If there are red areas, the model is wrong (we haven't ported that mode to the new cura yet, it's a WIP).

Take a look at this excellent writeup about non-manifold meshes; http://blender.stackexchange.com/questions/7910/what-is-non-manifold-geometry

 

Thanks for this, i'm trying to follow the procedures but having a lot of trouble, have you done this before?

Because i cant do this: Loose geometry (elements without any other connecting elements) can be selected with 3D view > Header > Select > Loose geometry. Note that it only selects vertices, edges, and faces depending on the current selection mode.

Share this post


Link to post
Share on other sites

try and use use 15.02.01 it would print stuff that the others just wouldnt even load. Worth a shot, or take it in zbrush and dynamesh it. It will close all holes, but you'll need to tighten it after. Or take it to maya and close holes and reexport. This version of cura doesnt care about normals.

Share this post


Link to post
Share on other sites

As far as I can see it's a solid object,

so, best is to redraw just the outline of the shape, and making sure all lines are attached to each other, and then extrude to the correct height.

or perform a bolean to connect all the solid parts as one part.

this fault happens when there is a very slight gap somewhere, and the fastest solution is to redraw with closed lines.

and sometimes certain programs are not good at exporting STL files, and create gaps.

don't use the latest Cura, just grab an older one, and experiment with the "Fix Horrible"settings

Edited by Guest

Share this post


Link to post
Share on other sites

try and use use 15.02.01 it would print stuff that the others just wouldnt even load. Worth a shot, or take it in zbrush and dynamesh it. It will close all holes, but you'll need to tighten it after. Or take it to maya and close holes and reexport. This version of cura doesnt care about normals.

 

That didn't work im afraid, thanks for the help though!

Share this post


Link to post
Share on other sites

As far as I can see it's a solid object,

so, best is to redraw just the outline of the shape, and making sure all lines are attached to each other, and then extrude to the correct height.

or perform a bolean to connect all the solid parts as one part.

this fault happens when there is a very slight gap somewhere, and the fastest solution is to redraw with closed lines.

and sometimes certain programs are not good at exporting STL files, and create gaps.

don't use the latest Cura, just grab an older one, and experiment with the "Fix Horrible"settings

 

I will try give it a go, i am really not that good with blender though so not really sure what i am doing, thanks for the help! really appreciate it

Share this post


Link to post
Share on other sites

Still not working, anyone got any other advice? or has someone got netfabb pro which may be able to fix it where i can send you the model? really don't know what else to try, i needed tis sorted last night and was up most of the night, and been trying to sort it all day, and its driving me crazy!

Thank you for all your help i really appreciate it

Share this post


Link to post
Share on other sites

Still not working, anyone got any other advice?

 

I also have no clue about blender and 3ds, but i want to second this approach:

 

...fastest solution is to redraw with closed lines.

 

I'm pretty sure that you have a hidden (inner) wall in your model (marked on your screenshot) and you have to redesign it in some way without such a wall... (you have to remove all internal faces)

55d4474bbf79f.thumb.png.1b33c972056cec4ad84df8fbae0ffe4d.png

55d4474bbf79f.thumb.png.1b33c972056cec4ad84df8fbae0ffe4d.png

Edited by Guest

Share this post


Link to post
Share on other sites

Be curious to see the wire frame of your model, would be easy to see the problem then. If not, just draw it again in illustrator and re-extrude it. looks like a very simple model to create. If you know 3dsmax this should take you 2 mins. You may need to tesselate to add polys, but perhaps not.

Or just go into maya, highlight everything and select combine from the menu (its like attach in 3DSmax but easier to apply just by highlighting everything and going into the menu). That will merge all elements (as far as cura will be concerned) so should print fine?

Edited by Guest

Share this post


Link to post
Share on other sites

 

Still not working, anyone got any other advice?

 

I also have no clue about blender and 3ds, but i want to second this approach:

 

...fastest solution is to redraw with closed lines.

 

I'm pretty sure that you have a hidden (inner) wall in your model (marked on your screenshot) and you have to redesign it in some way without such a wall... (you have to remove all internal faces)

55d4474bbf79f.thumb.png.1b33c972056cec4ad84df8fbae0ffe4d.png

 

Thank you so much! fixed the problem! really appreciate it, and everyone else for their advice, THANKS!

Share this post


Link to post
Share on other sites

Be curious to see the wire frame of your model, would be easy to see the problem then. If not, just draw it again in illustrator and re-extrude it. looks like a very simple model to create. If you know 3dsmax this should take you 2 mins. You may need to tesselate to add polys, but perhaps not.

Or just go into maya, highlight everything and select combine from the menu (its like attach in 3DSmax but easier to apply just by highlighting everything and going into the menu). That will merge all elements (as far as cura will be concerned) so should print fine?

 

Thanks for the advice, unfortunately i don't really know what i am doing with 3ds so cant do much on there, what is this maya you are talking about though? sounds very interesting!

Thank you

Share this post


Link to post
Share on other sites

Its by the same people as 3dsmax. 3DSMAX is available as a free trial so you can just download that off their website if you want to go the legal route. Then in 3dsmax you import a vector (ai file) from illustrator (exported as illustrator 8 from illustrator i think), and click extrude from the modifier menu on the right, choose the amount from the slider. Job done. VERY EASY and works well with cura.

Edited by Guest

Share this post


Link to post
Share on other sites

Its by the same people as 3dsmax. 3DSMAX is available as a free trial so you can just download that off their website if you want to go the legal route. Then in 3dsmax you import a vector (ai file) from illustrator (exported as illustrator 8 from illustrator i think), and click extrude from the modifier menu on the right, choose the amount from the slider. Job done. VERY EASY and works well with cura.

 

sorry i have been extremely busy,, okay i have got 3ds and illustrator. What is a vector file? what do you mean export as illustrator 8 ?

thank you!

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

  • 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!