# Cannot extrude nor loft

**URL:** <https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580>\
**Category:** Modeling Questions\
**Created:** [April 20, 2025, 5:49pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580 "2025-04-20T17:49:59Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![ecreatures](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/ecreatures/32/15450_2.png) [@ecreatures](https://discourse.shapr3d.com/u/ecreatures)\
**Post date:** [April 20, 2025, 5:49pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/1 "2025-04-20T17:49:59Z")

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I have this sketch tht comes from a projection and there is no way i can extrude it or use it for loft. Then the new selection highlight just gives  
Me confusion.

 ![IMG_0562](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/7/3/73c53c48a72433cf404e6bfbc1a236df2acdf8e1.jpeg)

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**Author:** ![jean-philippe2](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/jean-philippe2/32/27353_2.png) [@jean-philippe2](https://discourse.shapr3d.com/u/jean-philippe2)\
**Post date:** [April 20, 2025, 6:04pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/2 "2025-04-20T18:04:12Z")

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Hi,  
Can you share us your file ?

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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, 2025, 6:31pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/3 "2025-04-20T18:31:46Z")

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My guess is you have two separate sketches (look in Item side panel). Shapr3D allows coplanar sketches. There are several suggestions in this forum. Here is one:

> [@Sketches will not merge if on the same layer](https://discourse.shapr3d.com/t/sketches-will-not-merge-if-on-the-same-layer/31614/14):
>
> The problem is it’s still combine sketches in some cases then you hit “Sketch (+)” button.  
> So I recommend always explicitly select needed sketch before continue working on it. That will save you from this kind of troubles.

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**Author:** ![ecreatures](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/ecreatures/32/15450_2.png) [@ecreatures](https://discourse.shapr3d.com/u/ecreatures)\
**Post date:** [April 20, 2025, 7:24pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/4 "2025-04-20T19:24:32Z")

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Yes I will here it is. Thanks for your help  
[Fone v2.shapr](https://discourse.shapr3d.com/uploads/short-url/rd9Kve3AcCX5bL1IQmahdx09JU9.shapr) (237.4 KB)

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**Author:** ![jean-philippe2](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/jean-philippe2/32/27353_2.png) [@jean-philippe2](https://discourse.shapr3d.com/u/jean-philippe2)\
**Post date:** [April 20, 2025, 7:30pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/5 "2025-04-20T19:30:30Z")

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your sketch is not clean, some lines overlap and are not joined  
see the screenshot

 ![Capture d’écran 2025-04-20 à 21.29.48](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/0/0/00017cf0bec46fb28b90de00d58b9fbd5fa3401c.jpeg)

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<div class="post-metadata">

**Author:** ![jean-philippe2](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/jean-philippe2/32/27353_2.png) [@jean-philippe2](https://discourse.shapr3d.com/u/jean-philippe2)\
**Post date:** [April 20, 2025, 7:36pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/6 "2025-04-20T19:36:10Z")

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here the repaired sketch

 ![Capture d’écran 2025-04-20 à 21.32.50](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/6/a/6aab2cece6af8a9db0bdef7a87fead6c6145affc.jpeg)  
[Fone v2.shapr](https://discourse.shapr3d.com/uploads/short-url/jA0kYC4YMPxqdPDfYqHuNwCS1JL.shapr) (256,9 Ko)

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<div class="post-metadata">

**Author:** ![ecreatures](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/ecreatures/32/15450_2.png) [@ecreatures](https://discourse.shapr3d.com/u/ecreatures)\
**Post date:** [April 20, 2025, 7:56pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-nor-loft/37580/7 "2025-04-20T19:56:02Z")

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Thanks, i was thinking about not closed sketch but  
-I thought projected sketch where always “programatically closed”  
-I could not figure out how to find where interuption was located.  
What is the technique to reveal interruptions? Heigh zooming, other  
Anyway, merci beaucoup