topic Re: Convert 3D surface to 2D surface in AutoCAD Forum

Convert 3D surface to 2D surface

lucian.sandulescu — Tue, 02 May 2023 19:00:48 GMT

Hello guys!

I tried to use the Flatten command in AutoCad but the area is not the same. So i looked up and i found that i can do this in Inventor, i tried and i had no result. How can i do it? Think about a sheet of paper from which I make a cone (3D surface) and then from that cone I want to have the sheet in 2D with the same area of the cone in 3D.

So, I design a boat, and i will attach the DWG drawing. I want that the surface near the boat to be in 2D that i can print like a model.

Can someone do it and tell me how and maybe can send me the file. Please!

Or maybe some have the pluggin in autocad to make this, please!

Re: Convert 3D surface to 2D surface

Valentin_CAD — Tue, 02 May 2023 20:01:02 GMT

@lucian.sandulescu ,

Were you not satisfied with the answers provided? No need to post twice.

https://forums.autodesk.com/t5/autocad-forum/convert-a-3d-surface-to-a-2d-surface-but-the-2d-surface-must/td-p/11926104#

Re: Convert 3D surface to 2D surface

j.palmeL29YX — Wed, 03 May 2023 17:01:05 GMT

@lucian.sandulescu wrote:

I tried to use the Flatten command in AutoCad but the area is not the same.

To flatten such spatially curved surfaces, the material must be partially stretched and/or compressed. So you will never get exactly the same surface area after flattening.

@lucian.sandulescu wrote:

i found that i can do this in Inventor, i tried and i had no result. How can i do it?

To demonstrate the flattening in Inventor I imported your solid (there is only one in the dwg) into Inventor and ran the unwrap command. The different colors on the flat part indicate where the material had to be stretched or compressed.

(view in My Videos)

But since you wrote in the other thread that you want/need to use AutoCAD, we don't need to go deeper into that here.

Re: Convert 3D surface to 2D surface

lucian.sandulescu — Wed, 03 May 2023 17:50:55 GMT

yes, this is what i am looking for , thank you! Can you do me the same thing and for the other side, the one on the side please and send me the file please ?

Re: Convert 3D surface to 2D surface

j.palmeL29YX — Thu, 04 May 2023 08:01:24 GMT

@lucian.sandulescu wrote:

Can you do me ...

Before I ask why you don't do it yourself and what are your problems (I guess that should be discussed in the Inventor forum) - attached my result (Inventor 2020 files).

(I flattened only the 4 curved surfaces, the other lofted surfaces and of course the regions too are flat already).

Re: Convert 3D surface to 2D surface

j.palmeL29YX — Tue, 09 May 2023 07:00:49 GMT

@lucian.sandulescu

Problem solved?