Single sketch line in Sweep command

[glebmorgan]

I have a single 3D sketch with couple of rails (yellow ones) and a single 2D sketch with interconnection lines (white ones). I want to sweep each individual line segment in my 2D sketch using one adjusent profile as a path and another as a guide rail.

I aim to get a set of adjacent surfaces and stich them later into one solid. 

The problem is that I can only select a whole loop as a sweep profile.

I have to create a couple of sketches on the same plane (at least, 3) to get all required lines separated from each other.

Am I supposed to do it this kind of way, or there is some proper approach to perform this line separating?

All sweep_paths_ends lie on the same plane, wich is the one the 2D sketch is on.

I am using Inventor 2019

[JDMather]

Do as 3 separate 2D sketches.

[johnsonshiue]

Hi! Like JD mentioned here, you can create separate sweep features. Or, you use Loft in this case. Here is what you need to do.

1) Create another 3D Sketch -> 3D Line -> connect the end points of the paths.

2) Loft -> Surface -> pick the two profile as a section and pick the newly create 3D sketch as another section -> pick the path as guide rails.

After that, you will need to use Rule surface or other surface features to create a watertight volume. Then use Sculpt or Stitch them back to a solid.

Please try and see if it works.

Many thanks!

[glebmorgan · Accepted solution]

@JDMather, @johnsonshiue – thank you for replies!

@johnsonshiue, I had already tried Loft.

The trouble with Loft is that it tries to kind of smooth out the profile as it goes along the path.

That is not a desirable effect in my case, I need to have sharp edges at conjunctions.

I tried Loft one more time folowing your instructions, and got even worse kind of result than I used to 🙂

But, in fact, your answer gave me an idea to try to loft across the yellow profiles rather then along them.

Turned out I do not even need any additional guides here, just couple of seprate lofts.

Eventually I got time to try it, and now I got the exact result I wanted to achieve.

Let me accept my own message as a sollution here 🙂