topic Loft rails not symmetric in Inventor Forum

Loft rails not symmetric

grant_maiorana — Thu, 01 Jun 2023 19:11:05 GMT

I am trying to create a loft feature between several sketches. When I select the last sketch, the loft rails attach to it asymmetrically. See file.

I am in Inventor Professional 2020.

Re: Loft rails not symmetric

JDMather — Thu, 01 Jun 2023 19:38:00 GMT

@grant_maiorana

Are you attempting to follow some Tutorial?

You are going to have to use Surface modeling techniques.

There are several improvements that you can use as well that I can explain if you continue the discussion.

Notice if you leave out the internal geometry from your profiles that you can Loft as a solid and then add those features later.

You could also adjust Point Mapping, but I am going to suggest that you not do that.

Re: Loft rails not symmetric

SBix26 — Thu, 01 Jun 2023 20:07:24 GMT

In addition to what @JDMather suggested, I would create only half of this shape, then mirror the entire solid body. That guarantees the the two sides are symmetric, and is also considerably less work.

Sam B

Inventor Pro 2024.0.1 | Windows 10 Home 22H2

Re: Loft rails not symmetric

CCarreiras — Fri, 02 Jun 2023 11:28:39 GMT

Another option that can work for you is... if you almost finished the model and invested a lot of time on it, instead of restarting from scratch to do the "half a boat method", maybe you can use the split tool to eliminate the half you don't like and mirror the remaining one.
Next time you start a similar symmetric model, remember that awesome tip that @SBix26 suggested.