# I select a Planar Surface,add a circle, and try to Extrude. Does not work

**URL:** <https://discourse.shapr3d.com/t/i-select-a-planar-surface-add-a-circle-and-try-to-extrude-does-not-work/27913>\
**Category:** Modeling Questions\
**Created:** [September 14, 2023, 11:14am UTC](https://discourse.shapr3d.com/t/i-select-a-planar-surface-add-a-circle-and-try-to-extrude-does-not-work/27913 "2023-09-14T11:14:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SoTaxMe](https://avatars.discourse-cdn.com/v4/letter/s/a87d85/32.png) [@SoTaxMe](https://discourse.shapr3d.com/u/SoTaxMe)\
**Post date:** [September 14, 2023, 11:14am UTC](https://discourse.shapr3d.com/t/i-select-a-planar-surface-add-a-circle-and-try-to-extrude-does-not-work/27913/1 "2023-09-14T11:14:06Z")

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I have a pyramid shaped tower with top cut off and flattened in order to build a customer an object to hold his radio tuner modules in (commonly nicknamed “Birdshots”, since they look about the size of shotgun shell’s).

The problem I have is selecting one of the faces of the 10 degree angled sides to “Sketch to Face”. No problem there. I sketch 5 circles 31.5mm each staggered upon the face. Then I go to 3D view and try to extrude them deep enough into the body to hold the Birdshot’s.

This is where the problem occurs. When I select any circle to extrude a cut into the body with, I am only getting broken parts of a circle…not a whole circle itself. (like on one, I get about 2/3 of a complete circle to cut into the body…not a whole circle). Others are worse with only a couple fractions of a circle. I have tried workarounds to no avail.

What am I missing here?

For the record, I studied FreeCAD for months, and decided there is no “Free Lunch”. You get what you pay for. And I am completely star-struck of the ease of use of Shapr3D. Worth every penny in lost design time on projects that I spend days trying to build with FreeCAD.

Thanks in advance,  
SoTaxMe  
Callsign NK5Q (Ham Radio Operator)

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**Author:** ![KPeter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kpeter/32/7644_2.png) [@KPeter](https://discourse.shapr3d.com/u/KPeter)\
**Post date:** [September 14, 2023, 12:27pm UTC](https://discourse.shapr3d.com/t/i-select-a-planar-surface-add-a-circle-and-try-to-extrude-does-not-work/27913/2 "2023-09-14T12:27:31Z")

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Hello,

Can you please upload some screenshots or even the Shapr3D design? That would provide some more context for the issue.