# Loft/Revolve from one ellipse to another

**URL:** <https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634>\
**Category:** Modeling Questions\
**Created:** [December 17, 2024, 9:31pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634 "2024-12-17T21:31:15Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![pali](https://avatars.discourse-cdn.com/v4/letter/p/5f8ce5/32.png) [@pali](https://discourse.shapr3d.com/u/pali)\
**Post date:** [December 17, 2024, 9:31pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/1 "2024-12-17T21:31:15Z")

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Hi folks,

I want to create a cute animal nose on a ball surface. The idea was to create one ellipse from the front view and project it on the balls surface. In the first attempt I created another sketch with a distance to the projected area and tried to create a loft connecting both. The problem was that I couldn’t fillet the edges of the resulting geometry, since Shapr didn’t recognize it was one part. Seems like there is a minimum gap between the newly created geometry and the existing ball - that’s why the fillet went into the wrong direction. Instead of smoothening the transition from one to another, the opposite happened.

So attempt #2: The projection remained and I created another sketch from the side view - another ellipse. The intention was again to find a way to “revolve” one part of the projected ellipse with a variable radius to match the side-view ellipse to finally increase the radius again, matching the projected ellipse again. The result should have been a bit like half of an american football.

Writting this I struggle finding the correct words, so I hope with the attached pictures the issue gets a bit clearer.

What are your thoughts about this? Do you have some nice approach?

Thanks and best regards,  
Patrick

 ![2024-12-17 22_20_14-Shapr3D](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/3/33e259fe1f9fc0849773ec5d0fbdad247cbfefff.jpeg)

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**Author:** ![Bob3DPO](https://avatars.discourse-cdn.com/v4/letter/b/7993a0/32.png) [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)\
**Post date:** [December 17, 2024, 9:47pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/2 "2024-12-17T21:47:13Z")

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Maybe make the nose separate then move it _into_ the ball and union the two?

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**Author:** ![pali](https://avatars.discourse-cdn.com/v4/letter/p/5f8ce5/32.png) [@pali](https://discourse.shapr3d.com/u/pali)\
**Post date:** [December 17, 2024, 9:58pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/3 "2024-12-17T21:58:45Z")

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Thanks for your reply Bob. Lofting doesn’t even create a new body on my end - so I can’t even union. If I did it separately, another step would be necessary to remove the excess material inside the ball - that’s what I would like to avoid.

I also attached a picture of the weird fillet Shapr does with the Loft geometry.

 ![2024-12-17 22_56_19-Shapr3D](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/5/7/57cdd287670f6b601c72e9ff6fa41a201a2fa15c.jpeg)

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**Author:** ![Bob3DPO](https://avatars.discourse-cdn.com/v4/letter/b/7993a0/32.png) [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)\
**Post date:** [December 18, 2024, 3:32am UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/4 "2024-12-18T03:32:15Z")

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That _looks_ like a good fillet. 😀 Can you share your file in shapr format?

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**Author:** ![pali](https://avatars.discourse-cdn.com/v4/letter/p/5f8ce5/32.png) [@pali](https://discourse.shapr3d.com/u/pali)\
**Post date:** [December 19, 2024, 7:45pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/5 "2024-12-19T19:45:37Z")

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Sure, you can find it below. It’s not that much though 😃

[Head.shapr](https://discourse.shapr3d.com/uploads/short-url/iVudTY10ZxkWhTKwFxkGBC5Xn2l.shapr) (21.3 KB)

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**Author:** ![Bob3DPO](https://avatars.discourse-cdn.com/v4/letter/b/7993a0/32.png) [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)\
**Post date:** [December 19, 2024, 8:30pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/6 "2024-12-19T20:30:48Z")

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Hi Pali,

Without the sketches you wanted to use in the loft, it is hard to tell. Just looking at your second screenshot, it _seems_ as if there are two bodies, the head and the nose.

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**Author:** ![pali](https://avatars.discourse-cdn.com/v4/letter/p/5f8ce5/32.png) [@pali](https://discourse.shapr3d.com/u/pali)\
**Post date:** [December 22, 2024, 2:24pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/7 "2024-12-22T14:24:00Z")

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Yes, I deleted it again since it looked s\*\*\* 😃 I made an ellipse an projected it on the ball. I made another ellipse with some distance to the projection. I created a loft from one to the other. A few roundings, that was it. After a few days off I checked again and was able to union the nose and the head. It seems like I had a naming issue - both had the same name, that’s why I didn’t find the nose body. So thanks Bob, issue resolved 🙂

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**Author:** ![Bob3DPO](https://avatars.discourse-cdn.com/v4/letter/b/7993a0/32.png) [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)\
**Post date:** [December 22, 2024, 5:14pm UTC](https://discourse.shapr3d.com/t/loft-revolve-from-one-ellipse-to-another/35634/8 "2024-12-22T17:14:44Z")

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Glad you worked it out!