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Mesh bodies conversion problem

15 REPLIES 15
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Message 1 of 16
arthur_brevet
427 Views, 15 Replies

Mesh bodies conversion problem

Hello. In order to resume an accidentally interrupted (5-day) 3D print I'd like to cut my STL file into two parts to print the missing part.
As STL files are imported into Fusion 360 as mesh bodies, I first need to convert this mesh body into a solid body. The problem is that the procedure for converting to a solid body causes the software to crash every time, it freezes and stops responding.
How can I solve this problem? (360 Fusion for Personal use, Windows 10, Surface Pro4 16Go Ram) Thanks.

15 REPLIES 15
Message 2 of 16

Please attach your STL file to a reply post.


"If you find my answer solved your question, please select the Accept Solution icon"

John Hackney
Retired

Beyond the Drafting Board


Message 3 of 16

@arthur_brevet 

If you can’t Attach the stl file here for some reason - this is very easy to do in free Autodesk MeshMixer and does not require any conversion. 

Message 4 of 16


@arthur_brevet wrote:

...
As STL files are imported into Fusion 360 as mesh bodies, 


True!

 


@arthur_brevet wrote:

... I first need to convert this mesh body into a solid body...


Not true!

Peter Doering
Message 5 of 16

File size exceed 71MB, can't attach it to a reply sorry.

Message 6 of 16

Yes, I cant attach the file because it exceeds the maximum size of 71 MB. Could you please give me more details about the free app you were talking about ?

Message 7 of 16

I'm a beginner, I saw on internet that I had to transform it into a solid body because I can't work on him. So what should I do ?

Message 8 of 16

Share a screenshot and describe in detail how you want to split it in two. Is it a simple plane cut?
That can be done with Autodesk Meshmixer.

You could try to ZIP the file and then attach it ?

Peter Doering
Message 9 of 16

"I cant attach the file because it exceeds the maximum size of 71 MB

"The problem is that the procedure for converting to a solid body causes the software to crash every time, it freezes and stops responding"

 

I suspect that these two facts are highly correlated.  How big is the STL?  My guess is that Fusion is not actually crashing (do you see a crash dialog?), but, instead, the conversion you have requested will take a LONG time.  If you let it run long enough, I'm willing to bet that it will complete.  How long will depend on exactly how big the mesh is.

 

Whether you should convert the mesh highly depends on what you want to do with it.  If you just want to print it, there is no need to convert to a solid.  However, if you want to, say, make a drawing from it, you will need a solid.


Jeff Strater
Engineering Director
Message 10 of 16

Hello. Thank you for your exhaustive reply, which will help me a lot. My file weighs 142,657 Kb, which means it will probably take a long time to convert. But after several hours of waiting, the characteristic message saying that Fusion 360 is no longer responding continues to appear. Although I think you're right that the body doesn't need to be a solid to be printed, I still need to split it in two, which I can't do on a mesh body.

Message 11 of 16

Hello. I wanted to use the ''split body'' function to split the volume of the mesh body in two, so I don't know if it's a simple flat cut. As for the file, I could zip it up to put it on the blog but it's not my file, and it's copyrighted so I don't think I can or should share it freely. But I've downloaded Autodesk Meshmixer and I'm going to give it a try.

Message 12 of 16

In Fusion create an offset plane at the height you need to split the mesh then use mesh Plane Cut to split the mesh.

HughesTooling_1-1692788188715.png

Set the fill type to get a closed mesh.

HughesTooling_0-1692788138782.png

 

Mark Hughes
Owner, Hughes Tooling
Did you find this post helpful? Feel free to Like this post.
Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.

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Message 13 of 16


@arthur_brevet wrote:

Hello. I wanted to use the ''split body'' function to split the volume of the mesh body in two, so I don't know if it's a simple flat cut. As for the file, I could zip it up to put it on the blog but it's not my file, and it's copyrighted so I don't think I can or should share it freely. But I've downloaded Autodesk Meshmixer and I'm going to give it a try.


If a flat split will not work you could create a body then convert the body into a mesh and use the mesh to cut your mesh. Might still take a while to process but probably quicker then what you're seeing now.

 

Here I have the mesh I want to split and a mesh body I created as a cutting tool. I've set combine to keep the cutting tool and create a new component. You can then repeat using intersect If you need a component for both parts.

 

HughesTooling_1-1692788745359.png

 

After cutting.

HughesTooling_2-1692788924645.png

 

Mark Hughes
Owner, Hughes Tooling
Did you find this post helpful? Feel free to Like this post.
Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.

EESignature


Message 14 of 16


@arthur_brevet wrote:

 I've downloaded Autodesk Meshmixer and I'm going to give it a try.



In MeshMixer go to Edit>Plane Cut

TheCADWhisperer_0-1692790621932.png

 

Use the arc and triad to locate the plane...

TheCADWhisperer_1-1692790729389.pngTheCADWhisperer_2-1692790787467.png

 

Message 15 of 16

Thank you very much! I managed to cut my piece in two, using the function you recommended. Thank you so much!

Message 16 of 16

Thank you very much! I managed to cut my piece in two, using the MeshMixer from Autodesk.

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