STL file export produces bad geometry

STL file export produces bad geometry

Anonymous
Not applicable
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Message 1 of 5

STL file export produces bad geometry

Anonymous
Not applicable

Hello, I'm a newbie, although I've been working with Fusion 360 for quite a while now. But there's allot to learn.

I produced a model with many parts, and I am having the parts printed individually. The model consist of 5 discs in parallel in between which are 4 layers that consist of 4 curved flyouts that pivot around an axis. This is the cycle of fifths in music, each flyout has the 7 diatonic chord names engraved for that key.

 

I plan to print 16 flyouts, the geometry is the same but each one has a different engraving. I copied a component that has 4 flyouts and converted it to 1 flyout called foldout (attached); I then made an STL file of foldout.

I checked the foldout STL file in Meshmixer and it is distorted, surfaces are not flat where they should be flat, etc.

 

This is the first time I have had this type of problem, up to now STL files have been well-behaved and printed correctly.

 

Thank you for any help.

 

Jacques

 

https://a360.co/3cwwHkQ

 

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4 Replies
  • stl
Replies (4)
Message 2 of 5

TheCADWhisperer
Consultant
Consultant

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Can you show screen capture image of Meshmixer and indicate where you see an issue with the geometry?

Are you in Ortho view?

TheCADWhisperer_0-1623341556594.png

TheCADWhisperer_1-1623341649291.png

 

 

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Message 3 of 5

Anonymous
Not applicable

OK.

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Message 4 of 5

jeff_strater
Community Manager
Community Manager
Accepted solution

the STL file looks fine to me. 

Screen Shot 2021-06-10 at 9.19.17 AM.png

If the faces look "not flat" in Meshmixer, it is likely that Meshmixer is just set to "group normals", and you need to change to "face normals"

 

group normals:

Screen Shot 2021-06-10 at 9.22.44 AM.png

 

face normals:

Screen Shot 2021-06-10 at 9.22.50 AM.png


Jeff Strater
Engineering Director
Message 5 of 5

Anonymous
Not applicable

AH, son of a gun, thank you.

 

One more little step ahead, and a hundred miles to go.

 

J

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