# A bug on 2-sided chamfer?

**URL:** <https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360>\
**Category:** Modeling Questions\
**Created:** [April 20, 2024, 5:40pm UTC](https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360 "2024-04-20T17:40:08Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dicksonsham](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/dicksonsham/32/22637_2.png) [@dicksonsham](https://discourse.shapr3d.com/u/dicksonsham)\
**Post date:** [April 20, 2024, 5:40pm UTC](https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360/1 "2024-04-20T17:40:08Z")

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Here are two objects: one is the original object, and the other is its mirror image. When a two-sided chamfer is applied to both, the distance#1 on the original object does not match the distance#1 on the mirrored object. The same discrepancy occurs for the second distance.

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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:** [April 20, 2024, 5:56pm UTC](https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360/2 "2024-04-20T17:56:47Z")

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Hi Dickson,

Does applying the chamfer before you mirror work for you? If you do, you can change the distances of the chamfer sides on both bodies at the same time in history.

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**Author:** ![dicksonsham](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/dicksonsham/32/22637_2.png) [@dicksonsham](https://discourse.shapr3d.com/u/dicksonsham)\
**Post date:** [April 20, 2024, 6:27pm UTC](https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360/3 "2024-04-20T18:27:56Z")

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hi Bob, thanks for your suggestion. But if i build the 2-sided chamfer before mirroring, i cannot see the mirrored image when editing the chamfer. In my case, i want to see how the whole body (original+mirror) will change, when editing the chamfer.

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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:** [April 20, 2024, 7:08pm UTC](https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360/4 "2024-04-20T19:08:26Z")

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Does this help?

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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:** [April 20, 2024, 8:48pm UTC](https://discourse.shapr3d.com/t/a-bug-on-2-sided-chamfer/31360/5 "2024-04-20T20:48:01Z")

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Hi  
I think it is a bug, I forwarded your post to the Gamma team for investigation.