AutoCAD Inventor :: Making A Shell Of A Mesh?
Dec 22, 2012
I am trying to make a shell of a mesh feature after I have upscaled it.
I do not think the regular shell technique will work as my mesh feature has hundreds of surfaces. So, I decided to open the file with my part in it and then derive the same part but a little bigger using the derive button. I would then subtract out the smaller, original, one to make a shell of the bigger, derived one.
Unfortunately, when I use this method to upscale, the 2 objects are not concentric so I cannot make the uniform shell that I want to.
I have attached the file of my mesh feature in case you want to see it. not that you will have to convert the object you see on my file into a base feature before doing anything with it. I did not because it would have made the file to big to attach.
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Apr 18, 2012
I'm trying to create a model of a Golf club head. I need it to be hollow but I am unable to do this using the shell operation or by creating a surface and thickening the faces. I created the geometry by lofting a series of sketches. I think the nature of the geometry may be causing the problem.
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Jan 8, 2013
I am working with 2 mesh's they are the same shape but different sizes. I want to subtract one out of the other but only after they are both "concentric". The objects are not symmetric so I cannot officially use the term concentric but I do not know any other term.
My problem is that I cannot get them concentric.
Things I tried:
They will definitely both have the same center of mass so I tried doing things with that but to no avail.
I also tried to set 3 constraints (distance between identical surfaces on each mesh) equal to some value x but it did not let me. If it did, I believe the smaller object would have no place to go but right in the center of the bigger one.
I have attached an assembly with both of the objects.
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Apr 9, 2012
I have an assembly that has somewhere a hole with a round bar that exactly fits in this hole. But when meshing the assembly, the mesh of the hole and the mesh of the bar are different.
The result is that the different parts do only seem to touch each other at the edges of the mesh, resulting in high stresses.
See picture.
I tried to made a derived part from the assembly, but that one does not finish meshing. After 48 hours, the progress bar is still half way. While the one above did finish in about 15 minutes. What can I do to make the meshes match?
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Feb 27, 2012
I need to shell out a Loft in the attached IV 2012 part file.The Loft i tried also as a new solid but the shell also cuts into the cylinder ( revolution 1 ) . I only want the 2 sides and bottom of the Loft to be Shelled, not the cylinder. What do i need to change to get the shell to work?
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Jan 24, 2012
Is it possible to fill a shell with sand? The end use of my design will have sand - like in a childs plasitc basketball hoop/stand assembly and I would like to try to approximate the center of gravity and other useful info.
ACAD 2010
ACADE 2008
AIS 2009
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Jan 10, 2014
Whats the importance of "Shell Connector Tolerance"in the create new simulation dialog box. Any example or some kind of illustration to explain this.
C1
Inventor Professional 2013
Vault Collaboration 2013
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Apr 22, 2012
When trying to shell a part i get the error: the attempted shell operation was unable to solve for a vertex....etc. i have attached the problem part file, of which the drawing is a fairly complicated frame (a chassis concept for a 3 wheeled race car i am designing)
How the part was made:It was created in an assembly using the frame generator tool and then converted to part file using the shrinkwrap feature. When using the shrinkwrap command, i selected: single solid body merging out seams between planar faces, All hole patching, break link, and remove all internal voids. and then when trying to shell i get the error message when selecting a wall thickness of 2mm.
i cant understand why the shell feature does not work as i have successfully shelled a very similar part file (with only slight differences in geometry from the file attached in the same way as what i am trying to do with this part). i can provide this part file upon request or the assembly file from which either was created. i need to shell the component in this way so that i can run accurate FEA (stress analysis) for crash simulations on it
I am using inventor 2013 (64bit OS)
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Aug 22, 2013
I have a funnel with a curved top. I'm trying to project an inset of the border onto the curved surface and use the shell command to create a hollow funnel with an overhanging lip. I have projected the inset successfully, but cannot select the resulting smaller face, just the whole original face.
A similar problem that I tried while attempting to figure this out was shelling a sphere. 2d sketch -> 3d sketch project onto surface, and try applying shell to the resulting "face". However I can only select the whole face when trying to shell.
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Dec 12, 2013
This shape will not shell out with a 3mm thickness.....i suspect i may have not modelled correctly....how would you model this shape part so as it can be shelled out?
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Nov 16, 2012
How can i shell out the part with 2mm thickness walls?
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Jun 1, 2012
Is there a way to use the Split Solid tool to partially split a circle and have multiple solids after.
Ex) I would like to cut the tank at the 180 and 270 deg marks. Using the split tool still cuts through 0 and 90. I tried drawing a line from a top view that started from center going through 180, but it still goes through 0 as well.
I've attached an example shell of where I would like to have 6 solids after.
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Sep 17, 2013
Using the shell feature. I have used a bit in the past and its always done what I want. This go around what I want is to shell without removing any outside walls, which it does no matter I seem to try. I can easily add a new outter wall back in, but if I can shell without removing an outter wall it would be just that much cleaner in my tree.
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Oct 5, 2012
I would like to be able to the share external geometry of a fully assembled mechanical model without surrendering any part or assembly data. Is there a way to turn this assembly into an external surface "shell"…?
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Nov 10, 2011
How to create a oval shape.The attached file shows the shape i need.How do i make the shape and then shell out 2mm.
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Feb 21, 2012
I am trying to shell out the underside handle of the feature. I have attached my part file along with the assignment briefing file. It is the second part on the page, i.e. the Garlic Press Handle.
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Apr 5, 2013
See Shell 2 .. it shells out but how do i have the Shell to the curved face on Revolution 1.I want the Shell to cut through Extrusion 1 and to the Revolution 1 curved face.
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Mar 26, 2012
I have a blade housing that requires a continuos radius around the profile. It is not a full radius. When I shell the blade, it looks like the raidius wants to continue. I was told I had to use two fillets and the particial radius will not work. However, the continuous radious in the customers requirement. Is there a way to shell this part correctly?
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Jul 24, 2012
The problem: a complex curvy part will shell 0.5 mm but not 3mm - some of the surfaces fall inside the others.
A work around : Offset each surace (individually - not quilt) then stich & sculpt.
A program: To offset an enclosed surface, individual face by face, internally. Then manually stich to identify any errors & patch accordingly.
Note these parts have 100's of faces so the code would be useful - not sure how to always offset the surface to the inside of the volume.
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Oct 10, 2012
I'm not exactly sure how to verbalize this task, but I'd like to shell a solid by selecting 2 opposing faces amd maintain a center wall. Can this be done using only the shell feature?
Notice the solid below is hollow.
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Jul 31, 2013
I am having trouble shelling a part I have designed. Every time I try, with no matter what thickness, I get the following message:
"The attempted shell operation had non-manifold inputs. Try with manifold inputs."
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Jun 1, 2012
Having problem with a particular file crash/freeze/not respond whenever using the shell feature on Inventor LT 2013? I am operating with Windows 7. I have the AutoCAD Inventor LT 2013 Suite. Just bought the computer two weeks ago and just installed Inventor about two weeks ago also.
In any case, it seems the file of this model is corrupted, as I have never had a problem using the Shell feature before this and shelling other objects even while the corrupted part is open works fine. However, if the "visibilty" of the part in question is checked and i click on the shell button, the program immediately freezes. I am not sure how to work around this and I really do not want to start the entire part modeling over from scratch.
Working with... Autodesk: AutoCAD Inventor LT Suite 2013 | OS: Windows 7 | GC: ATI 6670 | Mem: 8 gigs RAM | Proc: Intel core i5 | Monitor: Acer V213HL
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Jan 17, 2012
I'm trying to create a solid using the inside geometry of a shell in Inventor 2011. is there a simple way of doing this? i have attached the part i'm working on and need a solid that represents the free space inside the shell.
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Oct 4, 2013
I have drawn an assembly of parts and now wish to line up the small hole in the large shell to the projecting pipe,i thought it would be a simple task of using mates (insert aligned) but this does not let me pick on the boundary of the small hole.
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Apr 12, 2012
For a while now, I've been trying to shell a split game controller that will create the bottom part of the casing. However, every time I try to shell, a problem occurs "Modelling failure in ASM. Redefine inputs".
I've tried to find the source of the problem through supressing features, and when it finally does shell, the casing creates another problem that will not allow me to loft to get the proper appearance.
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Sep 7, 2011
We are trying to use 3d scanned data in Inventor to facilitate our design process. We don't need perfect and good looking 3d scanned models ready to produce, but we need some accurate measurements from holes and faces that we can use to design our own products.
So mine problem is: How I can get those scanned meshes to Inventor that I can get some dimensions from it, project some geometry to my sketches, add some constraints between scanned surface and mine designs, etc...?
I have tried some Add-Ins like Sycode's STLImport and Sycode's software called Mesh To Solid to get those mesh files open and I can open those "converted" files in Inventor, but those are only some kind of surfaces called Composite or Surface which consist of tiny triangles.
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Apr 10, 2013
I am using Inventor 2013, with the stl importer plugin also installed. I have had a objected scanned and the scan is been given to me in STL file.
As you may know that once something is scanned, it becomes a mesh object with many triangle faces. This is more evident on curved parts of the object.
Is there any way to smooth the surface so the curves do no look like very small step trying to form a curve? If the surface does not become smoothed out so its seen as one surface then I will have to adjust every small face at a time?
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Oct 17, 2012
I try to migrate our ObjectArx Api to Inventor. Therefore I need a function to create a mesh from a solid.
With Autocad .Net Api, I can use GetObjectMesh(DbObject obj, MeshFaceterData parameter). Does in the Inventor Api a similar function exist?
In the parameters I need to set the deviation in the same way as in the Autocad .Net Api.
Example:
FaceterDevNormal = 0.1;
FaceterDevSurface = 0.1;
FaceterMeshType = 2;
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May 14, 2013
How best to go about creating a "wire mesh". What i have tried is to create a solid flat (2mm thick) piece of material. I then draw a diamond shape on the surface & extrude it so as to give me a void.
Then i use the rectangular pattern option. The problem is that when i try putting in the amounts of the "holes" i need to brings up message to use optimized compute. I do that and then when i click to crate all the "holes" it comes up with a pattern failure error.
What other way can i use to create my object.
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Nov 29, 2013
where I can find and download a copy of Mesh Enabler add on for Inventor 2011?
Every link I try brings me to the same page to download it for 2013.
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Oct 31, 2012
But during the first analysis, it stopped and gave me a message saying: Improper constraints, material or mesh..Then I went on the internet for finding a solution, I came up with 1 solution - to set Average Element Size to 0.040 instead of 0.100.
After I tried this it came up with yet another "error": Mesh failed: Very large number of elements generated, mesher cannot proceed further!
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