# Fix a dent in an extruded curve

**URL:** <https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249>\
**Category:** Modeling Questions\
**Created:** [August 25, 2025, 3:12pm UTC](https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249 "2025-08-25T15:12:38Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ResIpsaLoq](https://avatars.discourse-cdn.com/v4/letter/r/f07891/32.png) [@ResIpsaLoq](https://discourse.shapr3d.com/u/ResIpsaLoq)\
**Post date:** [August 25, 2025, 3:12pm UTC](https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249/1 "2025-08-25T15:12:38Z")

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Hi, all. First, let me say that I am new to this software. I do have some experience using SketchUp for woodworking designs, etc., but I am only one month into using Shapr3D for 3D printing design.

I am working on a design that includes a hair bow (think Minnie Mouse) and somehow ended up with a dent in the extruded curve on one of the bow loops. I have no idea how this happened, as I drew one loop, copied it, rotated it 180 degrees, and moved it to the other side of the knot. I tried deleting the dented half of the bow and basically starting over with it, but I can’t seem to figure out how to do that. I can also only delete some (but not all) of the filets around the edge of the bow. Given I apparently have to fix what’s here rather than redoing it, does anyone have a suggestion for fixing the geometry on this curve?

Since I’m new here I can apparently only embed a single image:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/4/3491cbe8e0cd1b4485bfa7387c9ee0d9567f8c62.jpeg)

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

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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:** [August 25, 2025, 3:34pm UTC](https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249/2 "2025-08-25T15:34:11Z")

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First, welcome to the forum.

If the bow is symmetrical, I would add a construction plane bisecting the bow, do a ‘split body’ at the plane, delete the dented half and mirror the good side.

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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:** [August 25, 2025, 4:12pm UTC](https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249/3 "2025-08-25T16:12:48Z")

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All your actions are recorded in the history, so to understand what exactly went wrong, you can simply go through it and find the problematic spot. You can set breakpoints, and then the screen will show exactly what it looked like at the moment when that action was performed. You can also just delete everything after a certain point and redo it, if that approach seems simpler.

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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:** [August 25, 2025, 6:59pm UTC](https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249/4 "2025-08-25T18:59:23Z")

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Agree with above if you are coming from Sketchup biggest advantage for you would be the Parametric History and one of the Major reasons for choosing Shapr3d.

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**Author:** ![lilyclark](https://avatars.discourse-cdn.com/v4/letter/l/eb9ed0/32.png) [@lilyclark](https://discourse.shapr3d.com/u/lilyclark)\
**Post date:** [August 29, 2025, 11:33am UTC](https://discourse.shapr3d.com/t/fix-a-dent-in-an-extruded-curve/39249/5 "2025-08-29T11:33:24Z")

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> [@ResIpsaLoq](#):
>
> 大家好。首先，让我说我是这个软件的新手。我确实有一些使用 SketchUp 进行木工设计等的经验，但我使用 Shapr3D 进行 3D 打印设计才一个月。

Based on what I can see, the dent you mentioned is likely caused by a slight mismatch or overlapping of surfaces when you rotated and mirrored the bow loop. This often happens when we mirror or rotate extruded shapes, and Shapr3D creates tiny hidden geometry conflicts.you can project its outline onto a new sketch plane and then re-extrude it to get a flawless, symmetrical shape. I’d also suggest testing your final design with PLA filament first, as it’s beginner-friendly, more forgiving with temperatures, and perfect for printing decorative pieces like this.