# Cannot extrude the special-shaped sketch

**URL:** <https://discourse.shapr3d.com/t/cannot-extrude-the-special-shaped-sketch/15462>\
**Category:** Modeling Questions\
**Created:** [October 21, 2021, 9:31am UTC](https://discourse.shapr3d.com/t/cannot-extrude-the-special-shaped-sketch/15462 "2021-10-21T09:31:00Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![lenvn](https://avatars.discourse-cdn.com/v4/letter/l/aca169/32.png) [@lenvn](https://discourse.shapr3d.com/u/lenvn)\
**Post date:** [October 21, 2021, 9:31am UTC](https://discourse.shapr3d.com/t/cannot-extrude-the-special-shaped-sketch/15462/1 "2021-10-21T09:31:00Z")

</div>

Hi my friends, I import a 2D dwg file into the Sharp 3D, as shown in the figure below. But I cannot extrude the special-shaped plane. Only those circles can be extruded. Could anyone help me to fix it. Thanks so much.

 ![2](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/1/14fe0819e651445368ddb9f8906d6d23301d4a56.jpeg)

---

<div class="post-metadata">

**Author:** ![kaiaho](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kaiaho/32/9264_2.png) [@kaiaho](https://discourse.shapr3d.com/u/kaiaho)\
**Post date:** [October 21, 2021, 9:34am UTC](https://discourse.shapr3d.com/t/cannot-extrude-the-special-shaped-sketch/15462/2 "2021-10-21T09:34:42Z")

</div>

Hi

I guess your figure is not closed circuit. If you tap the line it will be highlighted and you see where it is disconnected. Happens to me all the time 🙂

---

<div class="post-metadata">

**Author:** ![lenvn](https://avatars.discourse-cdn.com/v4/letter/l/aca169/32.png) [@lenvn](https://discourse.shapr3d.com/u/lenvn)\
**Post date:** [October 21, 2021, 12:04pm UTC](https://discourse.shapr3d.com/t/cannot-extrude-the-special-shaped-sketch/15462/3 "2021-10-21T12:04:27Z")

</div>

You are right! I missed some points. Thanks!