Hi all

I got a doubt regarding getting 3d model of that 2d drawing can any one support me how to draw a 3d model for this attachment

Hi all

I got a doubt regarding getting 3d model of that 2d drawing can any one support me how to draw a 3d model for this attachment

Interesting part.

No doubt

Model as the drawing and see how it looks.

Cut the cylinder with 2 spheres.

draw a 320 r arc on one plane, and a 700 r arc on the perpendicular plane, and use a boundary surface. Clearly the "sphere" is a mistake.

Matt Lombard wrote:

draw a 320 r arc on one plane, and a 700 r arc on the perpendicular plane, and use a boundary surface. Clearly the "sphere" is a mistake.

If you do what the print says or if you revolve cut two spheres at the location and size suggested by the print you will end up with the larger of the two spheres and nothing left of the smaller sphere.

As Matt says above this will have to be surfaced in one way or another.

I did a revolve cut.

I didn't check if both revolve would give the same result.

Revolve R700 on 320 center.

Revolve R320 on 700 center.

It looks the same if this is all you look at. Actually the revolve is better than the Boundary, because the Boundary is parallel at the ends. Slight difference, but it counts if this is an optical application.

But if you extend the surfaces, the two kind of diverge from one another, so the solutions are almost the same relatively close to the center. Funny how even simple stuff has complex answers.

I cannot understand why anyone would want to model a toric, or someone else would recommend modeling a toric, with modeling methods in SW that don't include a revolve.

Using boundary surface would look something like this.