topic Re: Making Triaxial Ellipsoid with autodesk Inventor in Inventor Forum

Making Triaxial Ellipsoid with autodesk Inventor

Anonymous — Thu, 05 May 2016 18:14:43 GMT

Hi,

I am trying to make triaxial Ellpsoid kind of shape using inventor and I am having difficulties. I am trying to make something like shown in image below.

but I have one line, lets say blue plane in above image. That line I need it to be straight and red line would be quadratic. Look at attached image.

Using lofted gives me straight line between two curves at the base. (see lofted image)

Is there any way to do it in circular pattern?

Thanks

Re: Making Triaxial Ellipsoid with autodesk Inventor

CCarreiras — Thu, 05 May 2016 18:24:09 GMT

Hi!

What inventor version are you using?

Re: Making Triaxial Ellipsoid with autodesk Inventor

Anonymous — Thu, 05 May 2016 18:26:20 GMT

Hi,

I am using 2014 professional.

Re: Making Triaxial Ellipsoid with autodesk Inventor

JDMather — Thu, 05 May 2016 18:31:02 GMT

Attach your attempt here. (*.ipt file)

Re: Making Triaxial Ellipsoid with autodesk Inventor

Anonymous — Thu, 05 May 2016 18:33:35 GMT

Thanks for replying. Here you go.

Re: Making Triaxial Ellipsoid with autodesk Inventor

CCarreiras — Thu, 05 May 2016 18:54:06 GMT

I 'm not sending you the file, because i dont have 2014 version, only 2017 and therefore you will be unable to open it, but check the video and try to replicate it.

The trick is:

Transform in construction every geometry that you will not use as profile.

Do it in surface and turn it in solid.

Re: Making Triaxial Ellipsoid with autodesk Inventor

JDMather — Thu, 05 May 2016 18:54:25 GMT

Well now I am confused.

Do you want the part like in your image attachment or like in the part file? (They don't look anything like each other.)

Re: Making Triaxial Ellipsoid with autodesk Inventor

loulouv18 — Fri, 24 Jun 2022 08:56:27 GMT

I am trying to do something similar but there is an error saying that the lines don't intersect and I'm not sure how to make sure they do. Would anyone help me on this (I've looked into projecting and creating working points but am struggling with that too)? I also am unable to only select the curve on the side instead of selecting the entire loop. Attached is the file. My end goal is to create a shallow oval dish (will act as a support). I made one by revolving half an ellipse but then it is only 2-axial instead of 3.

Re: Making Triaxial Ellipsoid with autodesk Inventor

loulouv18 — Fri, 24 Jun 2022 08:58:36 GMT

Here is the file

Re: Making Triaxial Ellipsoid with autodesk Inventor

JDMather — Fri, 24 Jun 2022 21:10:55 GMT

~~Sketch1~~ Sketch3 is not fully defined.

Sketch2 is not fully defined. (Edit the sketch. Click and drag the sketch. What do you observe?)

Sketch9 is not fully defined.

Workplane5 is an unnecessary duplication of the XY plane.

Workplane6 is an unnecessary duplication of the XY plane.

Unnecessary duplication of dimensions...

Tip: Project Geometry and Coincident/Horizontal/Vertical constraints.

@loulouv18

Recreate these 3 sketches one-by-one (see Attached file).

If you run into any trouble -STOP- and post your file here.

Re: Making Triaxial Ellipsoid with autodesk Inventor

loulouv18 — Sat, 25 Jun 2022 11:18:11 GMT

Hi, Thank you very much for your help. I understand what you mean now with the previous sketches not being fully defined and thus constrained - so I was able to do this on the file I uploaded. I do have duplicate dimensions because if I delete them, the sketch is no longer fully constrained... is there supposed to be another way around it?

I also tried to use your tip on using "projecting" but I wasn't able to do it that way. (I think maybe copying the sketch and then using "3D transform" to rotate it might work but I haven't been able to figure that out yet either)

Trying to use "loft" with your original file, also did not work for me - do you know why this may be? (I have a feeling that it is because I can only select the entire circumference instead of just the outside curve as in the screen recording ccarreiras posted.

Thanks again,

Loulou Vos

Re: Making Triaxial Ellipsoid with autodesk Inventor

CCarreiras — Mon, 27 Jun 2022 10:14:18 GMT

Hi!

1 - Edit the sketches and Transform the geometry that you don't need as construction geometry.

2- select both arcs

3-Add the rail

Boa sorte!

Re: Making Triaxial Ellipsoid with autodesk Inventor

loulouv18 — Mon, 27 Jun 2022 11:27:39 GMT

Hi both,

Thank you very much for all the help! I was able to do it : )

Best,

Loulou