Home » Support » 3D Design » Rhino --> STL problem, how can I make Shapeways accept my model?
Search Search  
Show: Today's Messages    Show Polls    Message Navigator
icon5.gif  Rhino --> STL problem, how can I make Shapeways accept my model? [message #2482] Thu, 15 January 2009 21:28 UTC Go to next message
avatar Oskar_van_Deventer  is currently offline Oskar_van_Deventer
Messages: 395
Registered: December 2008
Go to my shop
Senior Member
Who is an experienced Rhino user? And who can help me converting my Rhino-v3 file to STL (or another format), such that the very strict Shapeways filter accepts it?

Here is the file:
http://oskarvandeventer.nl/Shapeways/Number%20Planet%20v4b%2 0for%20Shapeways.3dm

Here is the story:
I tried thousands of different STL settings to convert my beautiful, watertight and 2-manifold Rhino model to STL. Unfortunately, whatever I do, the result is always less than perfect. After many, many uploads and receiving many automated "Joris says no" emails, I am getting a bit desparate.
The Shapeways guys have been wonderful Smile in pointing out where the 2000 errors in the STL model are. However, they cannot repair the model for me (makes sense), nor do they have Rhino to help me Sad .
My model has already been 3D printed other buro's, but not by Shapeways. I realy like the Shapeways Shops concept and I want to get my shop filled. However, "Joris says no".

Who can help me, and provider me with the Rhino-to-STL settings that I need to make Shapeways to accept my model?

Thank you!

Oskar
Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #2484 is a reply to message #2482 ] Thu, 15 January 2009 22:11 UTC Go to previous messageGo to next message
avatar bvicarious  is currently offline bvicarious
Messages: 87
Registered: July 2008
Go to my shop
Member
I'm having trouble downloading your file. Can you attach it to your post?
Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #2485 is a reply to message #2484 ] Thu, 15 January 2009 22:25 UTC Go to previous messageGo to next message
avatar Oskar_van_Deventer  is currently offline Oskar_van_Deventer
Messages: 395
Registered: December 2008
Go to my shop
Senior Member
File attached.

(Sorry, my webhosting provider isn't as reliable as I had hoped)

Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #2639 is a reply to message #2482 ] Sat, 24 January 2009 22:37 UTC Go to previous messageGo to next message
avatar tfwesley  is currently offline tfwesley
Messages: 1
Registered: January 2009
Go to my shop
Junior Member
Have you checked out Spaceclaim? I understand they are working with Rhino, I believe you could import a Rhino file and export an STL.
Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #2770 is a reply to message #2482 ] Mon, 02 February 2009 13:44 UTC Go to previous messageGo to next message
avatar 32Q2  is currently offline 32Q2
Messages: 9
Registered: January 2009
Go to my shop
Junior Member
I find that it works best to convert all nurbs to mesh within rhino first before exporting.

You can then use the mesh fixing tools within Rhino before exporting as stl.
These tools are very handy but not easy to find on the toolbars, so I tend to access them via the command line.
The ones you need are:

CheckMesh
CullDegenerateMeshFaces
ExtractNonManifoldMeshEdges
ExtractDuplicateMeshFaces
UnifyMeshNormals

Eventually after doing all of these, the CheckMesh command should tell you 'This is a good mesh' and you should then be able to export stl no problem.
I use Rhino4, but I think these commands were all there in version 3

Hope that helps

Dan



Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #2771 is a reply to message #2770 ] Mon, 02 February 2009 15:21 UTC Go to previous messageGo to next message
avatar chris89  is currently offline chris89
Messages: 140
Registered: January 2009
Go to my shop
Senior Member
actually i did some tests as well, and STL files exported from 3dsmax never get accepted either. It's because for some reason it opens up all the edges, so there's non-manifold edges everywhere.

I dont know if rhino can export to VRML, but that did the trick for me.
Just remember that 1 VRML unit is 1 meter.
Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #44505 is a reply to message #2771 ] Sun, 26 February 2012 16:11 UTC Go to previous messageGo to next message
avatar billy57  is currently offline billy57
Messages: 20
Registered: August 2011
Go to my shop
Junior Member
In my experience, trying to fix a faulty mesh with Rhino's mesh tools will often generate more faults than it heals.

After much experimentation, I have arrived at the following method. It is rather tedious, but it is simple and it works. It will give you an STL mesh with no naked edges or other horrors.

1. Join two parts together, using Boolean. (If for any reason the parts will not Boolean, this indicates a problem which you will need to fix before you proceed.)
2. Immediately create a mesh from the resulting combination (Mesh/From NURBS object).
3. Run CheckMesh. Disregard the first line ("This is a good mesh" or "This is a bad mesh"), as a 'good' mesh from Rhino's point of view will not necessarily be 'good' for 3D printing. If there are any degenerate faces, naked edges or other issues listed, go back (ctrl-Z) and manipulate the parts until you get a result with zero problems. (The exception is 'Unused vertices' which seem to be harmless.)
4. Delete the mesh. (At this stage, it was only for testing.)
5. Save the altered Rhino model under a new version number, so that you can easily backtrack to an earlier stage if necessary.
6. Return to (1) and repeat until the whole model has been successfully joined.
7. Export the final mesh in STL format.
8. Run a final check on the STL mesh with NetFabb Studio Basic (free software which can be downloaded from: http://www.netfabb.com/stl_repair_fixing.php). (I do not recommend that you attempt to fix a faulty mesh with NetFabb, though – better to go back and fix the original model in Rhino.)

Good luck!


Billy
Re: Rhino --> STL problem, how can I make Shapeways accept my model? [message #44627 is a reply to message #44505 ] Wed, 29 February 2012 05:50 UTC Go to previous message
avatar stevecim  is currently offline stevecim
Messages: 7
Registered: June 2011
Go to my shop
Junior Member
don't know if this is of any help, I opened your file, MoI3d, it uses Rhino file format,from MoI exported all the objects into 1 STL file, them opened the stl file in Meshlabs, no "holes"

I used a very high triangle setting, created a 20MB STL, if you have someway of receiving the file, I'm happy to send it to you, or if you want I can try uplaoding the stl file to shapeways and see if they reject it.

cheers, Steve

 
   
Previous Topic:Textures not showing in renderer
Next Topic:Missing components in Shapeways upload.

Logo

Hello.

We're sorry to inform you that we no longer support this browser and can't confirm that everything will work as expected. For the best Shapeways experience, please use one of the following browsers:

Click anywhere outside this window to continue.