# Desing with Multipled curves using the loft

**URL:** <https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802>\
**Category:** Modeling Questions\
**Created:** [July 19, 2025, 1:34am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802 "2025-07-19T01:34:11Z")\
**Posts on this page:** 16\
**Page:** 1

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**Author:** ![Novarover](https://avatars.discourse-cdn.com/v4/letter/n/a6a055/32.png) [@Novarover](https://discourse.shapr3d.com/u/Novarover)\
**Post date:** [July 19, 2025, 1:34am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/1 "2025-07-19T01:34:11Z")

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hi everyone would really love if somebody could show me how to tackle this project. the other day and niece had a project where I thought I’d be able to assist and would be no trouble loading this project on my CNC machine. But to be honest, I couldn’t get past the design so the project never went much further. my niece needed a project done for her school and we were going to shape a hand surfing plane( please see photos attached). I was quite embarrassed as it brought me to an abrupt hult on how to tackle this design as simple as the object looks. It has a three-way curve system and I really struggled to create the object in Shapr3D so I could start some G codes for the CNC machine. Would love any suggestions if anyone’s out there to help.

[https://support.shapr3d.com/hc/en-us/requests/new](https://support.shapr3d.com/hc/en-us/requests/new)

 ![IMG_0268](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/2/5/25041ebe29894f8c8cbb9defe9ec9c502c2fe874.jpeg)

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**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\
**Post date:** [July 19, 2025, 6:42am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/2 "2025-07-19T06:42:59Z")

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You could use loft to make it work but just simple extrude and shape with fillet can do it.

1. Make the curved board.
2. Extrude a rough shape of the lip.
3. Fillet

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/2/c/2c79fccb638141576bdc2a99342db2e3ada734e1.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/6/f65c7dbbee4c20c0e8f4b032f584fc8d79dcb0df.jpeg)

It’s kinda similar to this process for an AC knob.

> [@Modeling Toyota A/C Knob](https://discourse.shapr3d.com/t/modeling-toyota-a-c-knob/36456):
>
> I am trying to model an A/C knob from a Toyota Tundra. I’m able to create the basic shape, and extrusions and center grip. However, I am having difficulty creating the smooth curves from the grip into the edge of the round body. The surface curves in 3 dimensions - from an end-view there is a fillet that blends into the side of the knob, and from the side view, the grip curves down into the edge of the knob. Pictures attached of what this looks like. Appreciate any suggestions. Thanks!

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**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [July 19, 2025, 6:57am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/3 "2025-07-19T06:57:27Z")

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Extrude two profiles. Intersect them. Add filets. Serve on a table.

 ![IMG_0171](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/2/5/254c9da4b001e97fe1808fe4608e248f50f7a4f7.jpeg)  
 _![IMG_0172](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/1/2/12913aa509371e10ed86f472fb76d1d3483a3851.jpeg)_  
 _![IMG_0173](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/7/9/790c82fe83e8851fad4f3bfc373fdfa2a191311f.jpeg)_  
 _![IMG_0170](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/c/3c0827df72e043b59d239e9397a725f202d72449.jpeg)_

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Sorry, didn’t noticed the center part 🤣

As a variant project a line in the center and use move tool on it

 ![IMG_0174](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/c/c/cc295d0a7a741f5d0ecdcb2c965220e39ecf8aad.jpeg)

* * *

Or simple extrusion and filets will work too, as @SCALEMODEL mention.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/c/5/c51babac539b94f4f8429ea1c28353b3c5482d3c.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/7/2/72e456a74de0e923853de93a8761e8ba6310ffb0.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/c/8/c8df0d2c74f70624554fe48ff5237c6ebe1dc8e5.jpeg)

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This one is using loft

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/b/7/b73f12a1db00c539a63b4fd24b760b768191f75e.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/4/3/43607229bf0961e1cbd37e664ddbb7b3306e548c.jpeg)

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<div class="post-metadata">

**Author:** ![Novarover](https://avatars.discourse-cdn.com/v4/letter/n/a6a055/32.png) [@Novarover](https://discourse.shapr3d.com/u/Novarover)\
**Post date:** [July 20, 2025, 12:47am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/4 "2025-07-20T00:47:17Z")

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That’s awesome guys. Thank you so much. Just one thing that that image doesn’t show not only this round and it curves one way. It also curves a third way which archers kind of like a surfboard. It’s the third arch I’m having issues with.

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<div class="post-metadata">

**Author:** ![Novarover](https://avatars.discourse-cdn.com/v4/letter/n/a6a055/32.png) [@Novarover](https://discourse.shapr3d.com/u/Novarover)\
**Post date:** [July 20, 2025, 12:48am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/5 "2025-07-20T00:48:32Z")

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So what would one add this shape to the final shape or create it all in one? I never thought of doing that so-called Finn like this ,that makes good sense to create two separate shapes and morph them.

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [July 20, 2025, 2:27am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/6 "2025-07-20T02:27:10Z")

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You should be able to union the 2 bodies.

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**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [July 20, 2025, 3:12am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/7 "2025-07-20T03:12:48Z")

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Here’s how I created this project. Three sketches, one revolve and two extrudes. Finished with fillet radii after the subtract and union.

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<div class="post-metadata">

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\
**Post date:** [July 20, 2025, 3:50am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/8 "2025-07-20T03:50:21Z")

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> [@Novarover](#):
>
> It also curves a third way which archers kind of like a surfboard.

The middle lip is covered very well, so I will cover the 3rd way it bends. Hard to tell from the photo how the front/back curves up or down like a surfboard but either way this will work.

Try all around loft.

  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/0/e/0ee785dd2cb204f54f0ac934454fae0fb69ccd6f.jpeg)

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**Author:** ![Andreas](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/andreas/32/31687_2.png) [@Andreas](https://discourse.shapr3d.com/u/Andreas)\
**Post date:** [July 20, 2025, 11:47am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/9 "2025-07-20T11:47:50Z")

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Hey @SCALEMODEL

Can you explain your solution to me better?

I find this very interesting for my future work with the organic shape?

For example, for a seat for a chair.

Mit freundlichen Grüssen

Andreas Desiderius Haudenschild

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<div class="post-metadata">

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\
**Post date:** [July 20, 2025, 3:34pm UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/10 "2025-07-20T15:34:05Z")

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Thats a good point that does look like a chair seat. I’ll put together more detailed explanation.

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [July 20, 2025, 4:24pm UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/11 "2025-07-20T16:24:18Z")

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Google it. Shows both sides and hand straps. Odd shaped thing.

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<div class="post-metadata">

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\
**Post date:** [July 20, 2025, 5:11pm UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/12 "2025-07-20T17:11:12Z")

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![POD-Handboards-Water-Flow-Velocity__51564](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/9/f93ac03a4ef71227af8592f07d5e746f22295961.jpeg)

I googled it, looks like a space ship

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<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [July 20, 2025, 5:26pm UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/13 "2025-07-20T17:26:59Z")

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> [@SCALEMODEL](#):
>
> Try all around loft.

Great example 🙂 Interesting result can be achieved 🙂

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/9/e93086cdd41f35f5d6dc90470f9a9b7f8dddcaa0.jpeg)

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<div class="post-metadata">

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\
**Post date:** [July 20, 2025, 5:35pm UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/14 "2025-07-20T17:35:51Z")

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Yup above is basically it.

Only thing to add.

1. Middle all needs to meet and be tangent.
2. You control the shape of the oval by introducing more smaller or bigger Fans that you use to LOFT.

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<div class="post-metadata">

**Author:** ![Novarover](https://avatars.discourse-cdn.com/v4/letter/n/a6a055/32.png) [@Novarover](https://discourse.shapr3d.com/u/Novarover)\
**Post date:** [July 21, 2025, 12:19pm UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/15 "2025-07-21T12:19:58Z")

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Awesome tiger Mike I would never thought of doing it like that.

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<div class="post-metadata">

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\
**Post date:** [July 28, 2025, 4:35am UTC](https://discourse.shapr3d.com/t/desing-with-multipled-curves-using-the-loft/38802/16 "2025-07-28T04:35:52Z")

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Hi

Had a DM request to go into more detail about the process.

Follow the video exactly, key is the Sketch process. If done in another way you will have constraint and loft failures.

  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/1/6/1637ece58969aa8703ac222095f67ba5a569c4c1.jpeg)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/3/33122415267ccac955db951473ef300414fd326b.jpeg)