# Problem creating a symmetrical chamfer/fillet on a symmetrical object?

**URL:** <https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305>\
**Category:** Modeling Questions\
**Created:** [March 31, 2025, 2:09pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305 "2025-03-31T14:09:47Z")\
**Posts on this page:** 14\
**Page:** 1

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**Author:** ![rrscnc](https://avatars.discourse-cdn.com/v4/letter/r/22d042/32.png) [@rrscnc](https://discourse.shapr3d.com/u/rrscnc)\
**Post date:** [March 31, 2025, 2:09pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/1 "2025-03-31T14:09:47Z")

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The right image is the kind of design i wanted to recreate especially the center rounded/soft chamfer/fillet effect thing.  
Made the shape using a loft tool,duplicated it one by one until it shapes a diamond.  
already tried the union but still doesn’t work?  
Thank you!

 ![Screenshot 2025-03-31 at 21.05.34](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/4/f470b7511a2e003336447243ac851f4bd63a4321.jpeg)

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**Author:** ![GroMark](https://avatars.discourse-cdn.com/v4/letter/g/4491bb/32.png) [@GroMark](https://discourse.shapr3d.com/u/GroMark)\
**Post date:** [March 31, 2025, 3:03pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/2 "2025-03-31T15:03:20Z")

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Try the replace face function on the Meeting faces of the Diamond Parts. This happens to me too, and replace face normally solves the issue

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**Author:** ![rrscnc](https://avatars.discourse-cdn.com/v4/letter/r/22d042/32.png) [@rrscnc](https://discourse.shapr3d.com/u/rrscnc)\
**Post date:** [March 31, 2025, 3:37pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/3 "2025-03-31T15:37:31Z")

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There’s a check mark icon showing but nothing happens :\

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**Author:** ![GroMark](https://avatars.discourse-cdn.com/v4/letter/g/4491bb/32.png) [@GroMark](https://discourse.shapr3d.com/u/GroMark)\
**Post date:** [March 31, 2025, 3:43pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/4 "2025-03-31T15:43:55Z")

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The change might be minimal, although I’m not sure. Could I try a few things on your file?

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**Author:** ![rrscnc](https://avatars.discourse-cdn.com/v4/letter/r/22d042/32.png) [@rrscnc](https://discourse.shapr3d.com/u/rrscnc)\
**Post date:** [March 31, 2025, 3:48pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/5 "2025-03-31T15:48:17Z")

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Would love to!  
Appreciate it  
[Diamond.shapr](https://discourse.shapr3d.com/uploads/short-url/ft0JNPTVwNlccveOvXRXTAGrJEt.shapr) (82.5 KB)

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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:** [March 31, 2025, 5:07pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/6 "2025-03-31T17:07:31Z")

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I lofted one quadrant then did a Mirror followed by a Union. Did another Mirror and Union to finish the diamond. I was able to do a .156 fillet radius on all four corners.

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**Author:** ![rrscnc](https://avatars.discourse-cdn.com/v4/letter/r/22d042/32.png) [@rrscnc](https://discourse.shapr3d.com/u/rrscnc)\
**Post date:** [March 31, 2025, 5:14pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/7 "2025-03-31T17:14:58Z")

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tried that also but i need to make it the same weight for the fillet :. maybe it’s just a number/radius thing. but thanks anyway!

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**Author:** ![GroMark](https://avatars.discourse-cdn.com/v4/letter/g/4491bb/32.png) [@GroMark](https://discourse.shapr3d.com/u/GroMark)\
**Post date:** [March 31, 2025, 7:01pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/8 "2025-03-31T19:01:39Z")

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There you go:

[Chamfered Diamond.shapr](https://discourse.shapr3d.com/uploads/short-url/h4tzLTqUvw7sGM2LY7Q97ugZDZ6.shapr) (83.6 KB)

Cleaned up the sketches a bit, and then swept the originally lofted face on the path on the bottom of the diamond. Mirrored, Unioned, etc. Also, the history is a bit cleaned up now, although there‘s some useless mess left.

Hope I could help!

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**Author:** ![rrscnc](https://avatars.discourse-cdn.com/v4/letter/r/22d042/32.png) [@rrscnc](https://discourse.shapr3d.com/u/rrscnc)\
**Post date:** [March 31, 2025, 7:16pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/9 "2025-03-31T19:16:36Z")

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Thank you so much for your time!  
But actually what i’m trying to do is to make the fillet in the same ‘thickness’ idk if that’s logically possible.

 ![Screenshot 2025-04-01 at 02.11.25](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/8/0/8050bb963d8881576c2a46ca07504cf1514aebca.jpeg)

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<div class="post-metadata">

**Author:** ![GroMark](https://avatars.discourse-cdn.com/v4/letter/g/4491bb/32.png) [@GroMark](https://discourse.shapr3d.com/u/GroMark)\
**Post date:** [March 31, 2025, 7:19pm UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/10 "2025-03-31T19:19:16Z")

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Oh well… Guess I misunderstood it!

I‘ll try a few things and share them with you later.

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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:** [April 1, 2025, 12:25am UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/11 "2025-04-01T00:25:38Z")

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Nice try @GroMark. I believe your result was similar to mine? Meaning a tapered fillet where the taper goes to zero at the center of the body?

Anyway @rrscnc, I don’t think your geometry, as nice as it is, is suitable for your request of a constant fillet. IOW, I don’t think it can be done. Looking at your reference image, the geometry is quite different and a bit more complicated than what you are trying to do with yours. To my mind, you reference pic show a central ridge like a bead that represents the constant fillet. And, the areas I circled in red have a different geometry, more of a depression in areas bisecting the outer bead ridges. Hard to describe but it’s there.

To salvage, you might try adding a bead via a sweep,across the soft ridge, sunken in your part then do a fillet radius of the bead against your contoured surface. That might work.

 ![IMG_0910](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/2/7/27a1e780f8283fffcdfa56b51db6a8b6ac7ec49e.jpeg)

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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:** [April 1, 2025, 12:56am UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/12 "2025-04-01T00:56:04Z")

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Something like this. Yes, the ridge is a bit over the top.

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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:** [April 1, 2025, 2:50am UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/13 "2025-04-01T02:50:50Z")

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What mike suggested looks like the best option within Shapr, unless you wanted to do a series of complex lofts in the divided area.

Off topic but for things like this, for more organic and molded look, I would also suggest the mesh route, like Blender. Things like this is more logical and easier to do in that program because you can subdivide which relaxes the hard edges.

Currently I quite like this workflow:

Blender export to IGES Plugin to Shapr to convert the SUBD to CAD.

Blender pre SUBD

 ![Screenshot 2025-03-31 at 7.29.52 PM](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/1/3199aa89a17fbd775925f6fff3575dafdcbc6d9d.jpeg)

IGES Import in Shapr with SUB D conversion.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/b/d/bdf5e4d13883b641d84a2a9950f1c0f4ec3895de.jpeg)

Shapr Render

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/5/d/5de4d58a558af11e564f00f764ddff05579b5925.jpeg)

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<div class="post-metadata">

**Author:** ![rrscnc](https://avatars.discourse-cdn.com/v4/letter/r/22d042/32.png) [@rrscnc](https://discourse.shapr3d.com/u/rrscnc)\
**Post date:** [April 1, 2025, 4:55am UTC](https://discourse.shapr3d.com/t/problem-creating-a-symmetrical-chamfer-fillet-on-a-symmetrical-object/37305/14 "2025-04-01T04:55:04Z")

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@TigerMike @SCALEMODEL thank you so much for the help. will defo try!