# Trying to make a sphere turns into a giant donut

**URL:** <https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463>\
**Category:** Modeling Questions\
**Created:** [April 24, 2024, 8:23am UTC](https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463 "2024-04-24T08:23:08Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![UrbanBeaver](https://avatars.discourse-cdn.com/v4/letter/u/5fc32e/32.png) [@UrbanBeaver](https://discourse.shapr3d.com/u/UrbanBeaver)\
**Post date:** [April 24, 2024, 8:23am UTC](https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463/1 "2024-04-24T08:23:08Z")

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Hi Everyone,

I’m not sure if this has been answered in the past but I’m trying to make a sphere…I make a circle then draw a line through the center, trim half to make the half moon, I hit revolve, pick the axis like all the videos I look up say to do and as soon as I pick the axis it turns into a giant donut with open sides. Can anyone tell me why it’s making such a giant open surface?

 ![Sphere Donut](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/2/7/27989f5afeeda7e2ae4bad78f38b5f1e2c37493d.jpeg)

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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:** [April 24, 2024, 8:32am UTC](https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463/2 "2024-04-24T08:32:27Z")

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Because its revolving around axis and it is very clear from your photo that this axis not collinear with your section.

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 27, 2024, 5:30am UTC](https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463/3 "2024-04-27T05:30:47Z")

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Use the straight line in your sketch as the axis. You can use almost any straight line anywhere as your axis.

 ![Sphere1](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/9/0/902cd51e87f700e4b72e9a2da0dc1f34f704c879.jpeg)

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**Author:** ![Shaun](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/shaun/32/18786_2.png) [@Shaun](https://discourse.shapr3d.com/u/Shaun)\
**Post date:** [April 27, 2024, 5:36am UTC](https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463/4 "2024-04-27T05:36:57Z")

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I usually draw a circle and cut it in half with a line. I then select one half and revolve it around the centre line I just made.

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 27, 2024, 5:41am UTC](https://discourse.shapr3d.com/t/trying-to-make-a-sphere-turns-into-a-giant-donut/31463/5 "2024-04-27T05:41:23Z")

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That is the correct method. It looks like you selected the world origin axis or Shapr did by default maybe?