# Void in center of column with dynamo

**URL:** <https://forum.dynamobim.com/t/void-in-center-of-column-with-dynamo/13596>\
**Category:** Revit\
**Created:** [July 31, 2017, 6:43pm UTC](https://forum.dynamobim.com/t/void-in-center-of-column-with-dynamo/13596 "2017-07-31T18:43:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![g.romero](https://avatars.discourse-cdn.com/v4/letter/g/b9bd4f/32.png) [@g.romero](https://forum.dynamobim.com/u/g.romero)\
**Post date:** [July 31, 2017, 6:43pm UTC](https://forum.dynamobim.com/t/void-in-center-of-column-with-dynamo/13596/1 "2017-07-31T18:43:33Z")

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I want do a void in the center of column with face beam structural with Dynamo you can help me please?

 ![columna](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/0/8/08fb96082fd9fb972827a000d4c99f1df582e149.JPG) ![Geometry](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/f/ffb569f8d9f1d41551c9ce3074d980e40c2e60c3.JPG)