AutoCAD Inventor :: Making 2 Mesh Concentric
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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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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Mar 24, 2004
How do you smooth lines? Like if I trace something and the lines are just a touch jagged, how do I get them to look perfect? I'm using PS7.
Also, how could I make concentric circles? Or even just a hollow circle? I can use the shape tool to make a circle, but that fills it - is there a way to make it with just a 2 or 3 pixel outline and hollow in the middle?
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Aug 23, 2010
I've been using inventor for past 3 yrs. I just love it.
1. BOLTED CONNECTION: whenever i perform a bolted connection with option "CONCENTRIC", though it creates the holes in all the locations but places fasteners only in the first hole(refer attached picture). I'll have to copy and paste it individually for all other holes then, which is quite a hassle. It works fine with all other options i.e BY HOLES, POINTS etc.
2. While creating a new part, I usually makes the referance planes in the center of the part which makes it easier to assemble by planes in a large assembly. For this purpose, i have to project the planes and then get my sketch symetric to the planes during every part creation. As I've worked in other softwares too, where in sketch it automatically alows to use the referance planes for sketching, so we don't have to project it in order to use it.
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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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Jul 10, 2006
I needed to make a bunch of concentric circles (something like 30 or 40), and I used offset command; I'm wondering if there's a way to 'array offset'? It's already done and wasn't that difficult, but I just have to know..
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Jun 15, 2011
I have a large .DWG with approximately 400 circles representing wells on it. The end goal is to draw an additional circle around each of these with a larger radius (150). Basically what I'm looking for is a way to automate this such that:
For (object 1 to last object) {if (object is a circle) draw new circle around it
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Oct 21, 2013
How do i get the curve when drawing a concentric reducer i tried lofting but still dont get the curve.
Spoiler (Highlight to read)
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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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Jun 5, 2008
making concentic circles. how to make these.
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Nov 8, 2002
how to make concentric circles for the purposes of circular scan lines. It involved making a series of horizontal dots in a single line and rotating them through 360degs leaving the concentric circles in place.
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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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Aug 7, 2012
Import Polyface Mesh to the AIP2012
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Jan 18, 2012
As my journey through Inventor 2012 continues, I have the task of creating Expanded Metal Mesh.I have the basic sketch of the shape and all is well. My question is how to pattern the sketch of the shape so that I dont have to copy or mirror over 100 of these sketches/outlines to form the pattern? Essentially I want my mesh to fill in a 30' x 30' square.
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Mar 8, 2012
Working on a simple cylinder with a coil runing around the outside of it. For some reason the mesh does not handel the geometry correctlly - can figure our why - any thoguths ? Attaced are pics from the meshing and the model.
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Apr 6, 2012
I'm having difficulty trying to create what could be described as a diamond pattern inside a cylinder. How to achieve this.
Please see picture for an idea of the pattern.
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Jul 10, 2012
I'm currently working on a model where I'm subjecting a vertical wire (5 micron radius, 20 micron height) to a transverse load. I made an assembly of a 18 micron length section and a 2 micron length section, so that I can apply my force to the 2 micron tip, while leaving the bottom face of the wire fixed. I am trying to find the minimal force needed to fracture the wire (i.e., altering the force until the max stress hits the material's ultimate tensile strength). However, I've realized that decreasing the mesh size drastically changes my results, Obviously, decreasing mesh size should increase the accuracy of the results. Instead, by decreasing the mesh size, I actually am diverging from my results.
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Jun 26, 2013
WHAT I A TRYING TO DO: is bend a grid/mesh pattern of material to a certain radii and distance. In the attached DWG I have used either Extruded or Sweep to create the existing (latitudal?) grid but am not doing well creating the perpindicular grid at the arc drawn below the existing (lat.) grid.
I believe the dwg is a good representation of what I am attempting to do, and I am trying getting to my end result, whether it means using what i've begun or starting over, and using the "Best Practices" to achieve such.
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Jun 13, 2012
In watching videos about Photoshop CS6 I notice that the brush (or other cursor) often appears as two concentric circles: the outer circle gives some idea of the extent of the brush effect. How do I activate this double circle brush display in Photoshop CS6. I seem only to see a single circle for the brush display. I am using the "cloud" version with Windows 7.
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May 5, 2013
how to draw a circle with its center at the starting cursor location of the drag motion? It's given that the ellipse shape tool is chosen.Neither simultaneously depressing the shift or control key concurrent with the drag motion accomplishes this objective. any simple way to draw concentric circles each of which has a randomly chosen diameter and varying stroke width? The polar grid tool isn't relevant to this objective.
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Sep 14, 2013
Does Frame Analysis uses the finite element method?
If it does, how to view/edit the mesh?
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Jul 10, 2012
I've modelled part of a ship's deck, it consists of rather simple geometrich shapes(Plates, knee brackets and profiles).
However, when i model the assembly and do some negative extrusions in order to get the model how i want it, it leads to a face failure during mesh generation.
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Nov 19, 2013
I have some DWG files which contain walls of old castle some of the vertex are missing so I have to join them manually or found software to generate them automatically Does solid works have this functionality ?
After joining vertex how can I convert walls to meshes?
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Jul 20, 2013
I downloaded the .stl file from here, which is a very detailed model of 20mb size:
[URL].....
it can be opened in inventor and is shown as a mesh object. Then I tried the plugin "Autodesk Mesh Enabler" to turn it into a solid. After almost an hour it produced something of 350mb, but it cannot be opened anymore, it crashes inventor immediately. Are there any settings to that plugin to reduce the number of elements that it creates?
I heard Mesh4CAD is a similar tool for autocad. I am installing autocad now, hoping that it is more powerful for these kind of things...
I just need to take measurements and attach new objects to the model, or can this somehow be enabled for mesh objects as well, without converting?
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Feb 2, 2012
I often use the FEA tool of Inventor, I already had some "known issues" like degenerated element.
I have to test if a tank (full of oil) can resist at a 10G shock in every axes (six simulations separated). For simulated the oil, I created a part from the tank assembly using boolean tools (combine, and so on...). Then I applied the stresses on the oil part, in the interaction surfaces between oil and the tank.
When I mesh, there is no problem, I can save, quit and load the assembly, the mesh is OK. Once I have set all the parameters, whatever the simulation settings, I can see the message: "Adaptative refinement" then it stops after the first iteration, and the mesh disappears.When I repeat it, sometimes the simulation is blocked at the "adaptative refinement" step. I cancel it and a "mesh error" appear...
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Dec 5, 2012
How can I scale the mesh appearance on a part body. The holes are appearing too big.
C1
Inventor Professional 2013
Vault Collaboration 2013
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Dec 4, 2011
I thought they were supposed to appear when the Polygon shelf is selected? I don't see them. In fact, when I select different shelves the menu items on the right half of the task bar don't change at all. Is this normal?
This is Maya 2011 on Mac OS X Lion.
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