# Fade form from one sketch/body to another?

**URL:** <https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995>\
**Category:** Modeling Questions\
**Created:** [March 26, 2024, 12:58pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995 "2024-03-26T12:58:05Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 26, 2024, 12:58pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/1 "2024-03-26T12:58:05Z")

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Hi Shapr3d community.

I am new to the software, but I am loving it and the simplicity so far.

I am currently working on a design project for some glasses. I have some troubles to figure out how to make the front frame with all the bends and curves etc.

Is it possible to use one sketch for a starting point of a new body, and then a second sketch as the ending point of the new body?

See attached photo, as you can see I would like to transition the first design to the second design in one body. I hope it makes sense what I am trying to accomplish, otherwise ask away.

Thank you.

/ K

 ![IMG_0046.PNG](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/9/1/914704d0048f6c22bb1f74675fe6e3d34141d78c.jpeg)

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**Author:** ![PEC](https://avatars.discourse-cdn.com/v4/letter/p/67e7ee/32.png) [@PEC](https://discourse.shapr3d.com/u/PEC)\
**Post date:** [March 26, 2024, 2:10pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/2 "2024-03-26T14:10:27Z")

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hi @bashma

Welcome to the forum.

The Loft tool is doing exactly what you ask for “use one sketch for a starting point of a new body, and then a second sketch as the ending point of the new body”, but I’m not certain it is what you really need at present.

From your screenshot, I guess you want to use the horizontal sketch to shape the glasses. The best solution is to extrude this sketch vertically and choose the **intersect** mode to intersect it with the existing body.

I suggest to have a look at

> **[Intro to Eyewear Design - Tutorials - Shapr3D](https://www.shapr3d.com/videotutorials/intro-to-eyewear-design)**
>
> Intro to Eyewear Design - Design eyewear from scratch - based on pen&paper sketches - 3D Modeling and CAD Video Tutorials for All Levels

Best  
PEC

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<div class="post-metadata">

**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 26, 2024, 6:38pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/3 "2024-03-26T18:38:55Z")

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Hi @PEC

Thank you for your reply. I have messed around with the loft tool. And it seems to do the trick on very basic shapes.

When I try to apply the loft tool on my two slightly different designs, I get the error “Operation failed because the resulting body wouldn’t be valid”. Anyone who can explain to me why this would not be a valid body, and what to fix before I can use this tool?

I have seen the tutorial thank you, but they do not adress this issue. Extrude and intersect works fine 👍

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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:** [March 26, 2024, 7:10pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/4 "2024-03-26T19:10:58Z")

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I think that’s because you have holes in bodies or sketches you’re trying to loft.  
Try to make holes after loft.

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**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 27, 2024, 7:42pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/5 "2024-03-27T19:42:25Z")

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Hi @Xdrakosha

Thank you very much for taking your time to record this. This basicly solved my issue and I can now use the loft tool. 👍

This resulted in a new problem where I cannot use the chamfer/fillet tool on all edges to make them smooth/round.

Anyone who can explain to what in the design that restrict this tool from working or any other “manual” techniques which can be applied to reach the same goal for softer/rounder edges?

Maybe it is because the edges dont go 360 decrees around the frame in a complete loop?

 ![IMG_0047.PNG](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/e/7/e7a5f9e6d2afdaa10383bc56e4363a116ca6732e.jpeg)

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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:** [March 27, 2024, 7:54pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/6 "2024-03-27T19:54:43Z")

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Try to zoom in more before doing filet/chamfer

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<div class="post-metadata">

**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 27, 2024, 7:55pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/7 "2024-03-27T19:55:46Z")

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It does not work. I have zoomed in as much as possible. As you can see there is also a error message. “Range of blend on face is too large”, dont know what that means though.

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**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 27, 2024, 7:56pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/8 "2024-03-27T19:56:33Z")

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Not even a small chamfer/fillet is possible.

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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:** [March 27, 2024, 7:56pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/9 "2024-03-27T19:56:54Z")

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If I’m not mistaken that mean to big radius for that edge.

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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:** [March 27, 2024, 7:58pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/10 "2024-03-27T19:58:28Z")

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Sometimes math core just don’t understand what you trying to achieve. So you have to search for another way to get the same result.

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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:** [March 27, 2024, 7:59pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/11 "2024-03-27T19:59:42Z")

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For example you can make a sweep starting from a corner and do subtract after that.

If you ready to share the project with me I can try to find a way how to do that.

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<div class="post-metadata">

**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 27, 2024, 8:06pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/12 "2024-03-27T20:06:14Z")

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Okay. That would be amazing 🙏

How do I share the project with you?

This is the edges I am trying to round with about 1mm. In the front and in the back. The chamfer/fillet works fine in the holes 👍

 ![Skærmbillede 2024-03-27 kl. 21.04.57](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/a/9/a9811abc006a23db37ef56b0407bfc7467b73340.jpeg)

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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:** [March 27, 2024, 8:08pm UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/13 "2024-03-27T20:08:15Z")

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> [@bashma](#):
>
> How do I share the project with you?

Export in .shapr file and upload here or as a private message to me.

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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:** [March 28, 2024, 6:31am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/14 "2024-03-28T06:31:35Z")

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I’ve managed to add 0.8 filets just by splitting model by half and apply regular filet.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/b/b/bb300cb1d797d7bfa82b3a015fa058ffdac330be.jpeg)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/a/e/ae7128dcf40ea86821b627944a152995e2537303.jpeg)

If that’s not enough I can play with sweeps additionally.

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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:** [March 28, 2024, 7:33am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/15 "2024-03-28T07:33:08Z")

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1mm filet on every edges

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/4/7/47e59eec7be8b91e562e3f1d1c89f61fc9101c44.jpeg)

Have to cut 0.4mm in the middle of the model to achieve that

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/d/3/d3043237bcb1f755ba3b22b4a5afe4b55b39d48d.jpeg)

When I just lofted two half together

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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:** [March 28, 2024, 7:36am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/16 "2024-03-28T07:36:47Z")

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Even 2mm fillet can be applied after that

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/b/a/ba96c4db838d004df26bd8ef82bd8c4c17f4da1f.jpeg)

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<div class="post-metadata">

**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 28, 2024, 8:09am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/17 "2024-03-28T08:09:32Z")

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Thats amazing. Could you record a video step by step? When I am cutting the model in half i still have the same problem, cannot apply even a 0,8mm fillet.

And how did you come to the conclusion of cutting 0,4mm in the middle to be able to achieve more fillet? 😊

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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:** [March 28, 2024, 8:33am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/18 "2024-03-28T08:33:02Z")

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Ok. I’ll record a video for you a little bit later

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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:** [March 28, 2024, 10:39am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/19 "2024-03-28T10:39:19Z")

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[https://videos.tsbl.net/example\_020.mov](https://videos.tsbl.net/example_020.mov)

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<div class="post-metadata">

**Author:** ![bashma](https://avatars.discourse-cdn.com/v4/letter/b/e79b87/32.png) [@bashma](https://discourse.shapr3d.com/u/bashma)\
**Post date:** [March 28, 2024, 11:27am UTC](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995/20 "2024-03-28T11:27:56Z")

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Makes perfect sense. Thank you again for taking your time to show me this 👏

So it is typically a problem with the end of an edge if you get theese kind of errors to perform a function it seems. 🤷‍♂️

[Next page](https://discourse.shapr3d.com/t/fade-form-from-one-sketch-body-to-another/30995.md?page=2)