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# Using loft in a circular section

kartik_1
Member Posts:

**6**✭
Hello,

I am trying to develop a circular geometry as shown in the attached picture. We are not able to close the geometry using the loft procedure, can somebody suggest a solution to the problem?

The highlighted arrows show where we get into problems trying to connect one section to the another.

Thanks,

Kartik

I am trying to develop a circular geometry as shown in the attached picture. We are not able to close the geometry using the loft procedure, can somebody suggest a solution to the problem?

The highlighted arrows show where we get into problems trying to connect one section to the another.

Thanks,

Kartik

Tagged:

0

## Answers

258✭✭✭✭Indaer -- Aircraft Lifecycle Solutions

2,470PROOne surface for marking the curve on circular geometry and one for the shape, sweep on the edge of intersection.

Does this make any sense to you?

2,470PRO2,470PROAnyway, here is link to the model:

https://cad.onshape.com/documents/d29ff8e74a0f49809e533f48/w/48fedb2064cc4f30a27ee6e8/e/e36f139d86934221937a25ba

1,584✭✭✭✭✭you need to model the path for a single S shape, in order to make a sweep (not a loft) which can then be circular patterned. But, as 3dcad realises, his method does not quite provide what you want, because from your picture, it looks as though each bend needs to be in a single plane.

So what you need to do is model the 'top' half of the S path, up to exactly half way, as a sketch containing two straight lines and a tangent arc on one plane, then switch to another plane to model the bottom half. The two planes will share a line, and that line will coincide with the 'crossbar' of the S.