# extruded hole blocked by unknown artifact

**URL:** <https://discourse.shapr3d.com/t/extruded-hole-blocked-by-unknown-artifact/25406>\
**Category:** Modeling Questions\
**Created:** [April 22, 2023, 5:03am UTC](https://discourse.shapr3d.com/t/extruded-hole-blocked-by-unknown-artifact/25406 "2023-04-22T05:03:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![yhorstmann](https://avatars.discourse-cdn.com/v4/letter/y/90db22/32.png) [@yhorstmann](https://discourse.shapr3d.com/u/yhorstmann)\
**Post date:** [April 22, 2023, 5:03am UTC](https://discourse.shapr3d.com/t/extruded-hole-blocked-by-unknown-artifact/25406/1 "2023-04-22T05:03:12Z")

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Hello,  
I am new to this program and have become stuck with an issue. I extruded several holes through an object, one of the holes has some kind of artifact on the bottom plane and seems to be “tied” to a corner nearby??? See screenshot for more details.

Any help would be appreciated. I have tried to delete the hole, I have filled in the hole and re-extruded it only to have the same thing show up.

Thank you in advance.

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

 ![Screenshot 2023-04-21 at 7.57.34 PM](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/d/a/dac32f74d6b43fcede6c39ff95c04f060572dfd9.jpeg)