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Norge

Walls to STL

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I am trying to convert an architectural model ready for printing in 3D.  3 years ago I learned to export to Parasolid and then import back to VW so that I could convert to Generic solid.

This no longer works.

 

Is there a way of converting walls and other parametric objects to a solid format so that they can be exported to STL?

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1 hour ago, Norge said:

I am trying to convert an architectural model ready for printing in 3D.  3 years ago I learned to export to Parasolid and then import back to VW so that I could convert to Generic solid.

This no longer works.

 

Is there a way of converting walls and other parametric objects to a solid format so that they can be exported to STL?

 

I just did some quick testing and walls will export to STL as is. I also tried selecting a group of walls and creating a solid addition. However when I brought them into software to check the integrity of the STL there were a lot of individual shells, some of which weren't closed. It looks like VW doesn't deal very well with walls and converting them to other things. @Jim Wilson in your 3d printing tests, did you work with walls?

 

Kevin

 

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No, nearly all solid additions, subtractions, extrudes, sweeps and shells in most of my stuff. I did print a few whole buildings, but the problems i saw were mostly to do with lack of support during printing, not with the walls themselves.

The slicer I use mostly, Cura, does do a lot of model fixing automatically, it possible I had issues I never noticed that the slicer smoothed over.

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Just that. Cura takes care of walls and stairs and doors. Just File > Export > Export as STL. Import in Cura to check scale, support & brim and you’re good to go. Maybe adjust the nozzle size and speed but that’s it. 

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^ Hmmh,

the Stairs have real holes in their Mesh geometry, 2 vertex polygons, overlapping faces

and flipped normals directions.

And CURA is able to fix all these problems automatically ?

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I must be doing something wrong.  If I take a 4 simple walls in a box 10m x 10m, with some windows in it and export straight to STL, open in Cura and then scale it down to 1%, then there are no objects visible in Cura.  Maybe I don't know enough about Cura?  or should I scale it down in Vectorworks first?

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I have found the problem.  When I scale down, the walls end up very high on the Z axis.  By bringing the Z to zero, the model arrives on the build plate.  Thank you to everyone for your help.

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I'm no more sure if I modeled with Solids or PIOs.

Have to look at it again. I think there weren't any geometrical problems

in CURA but I think I had no Stair in use ...

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Often the slicers for FDM machines will repair or gloss over issues with the STL model. Those errors tend to show up if you try printing the same model with a higher end printer. I tend to error check everything in case I end up sending files out to be printed.

 

Kevin

 

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