# Seating Bowl | Parametric Monkey Tutorial

**URL:** <https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544>\
**Category:** Revit\
**Tags:** revit, dynamo\
**Created:** [December 19, 2017, 9:51pm UTC](https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544 "2017-12-19T21:51:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![christianjgentry](https://avatars.discourse-cdn.com/v4/letter/c/ce7236/32.png) [@christianjgentry](https://forum.dynamobim.com/u/christianjgentry)\
**Post date:** [December 19, 2017, 9:51pm UTC](https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544/1 "2017-12-19T21:51:03Z")

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Greetings everyone,

I am following this tutorial from Parametric Monkey about how to model a stadium seating bowl withing Dynamo.

> **[Seating bowl](https://parametricmonkey.com/2017/10/23/seating-bowl/)**
>
> Discover how to automate a stadium seating bowl using Dynamo and understand the key requirements in the Green Guide.

I am having issues once I reach the step where I add the steps around the vomitories and gangways of the model. I have had success following the tutorial up to this point, however I am unable to figure out why my model is not working when trying to add steps. Once I run the script to create steps, I end up with this,

 ![Broken1](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/4/74274a6c3056c31417875cf3a234a186edd39280.JPG)

Could anyone that is familiar with this tutorial help me get over this hump?

Thanks in advance

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**Author:** ![salvatoredragotta](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/salvatoredragotta/32/10078_2.png) [@salvatoredragotta](https://forum.dynamobim.com/u/salvatoredragotta)\
**Post date:** [December 19, 2017, 9:56pm UTC](https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544/2 "2017-12-19T21:56:29Z")

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Can you post your file?

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**Author:** ![christianjgentry](https://avatars.discourse-cdn.com/v4/letter/c/ce7236/32.png) [@christianjgentry](https://forum.dynamobim.com/u/christianjgentry)\
**Post date:** [December 19, 2017, 10:07pm UTC](https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544/3 "2017-12-19T22:07:18Z")

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[https://drive.google.com/drive/folders/1etfZQbyzlHc0jsQE7\_a0iXGaE5tuYAc5?usp=sharing](https://drive.google.com/drive/folders/1etfZQbyzlHc0jsQE7_a0iXGaE5tuYAc5?usp=sharing)

I knew I was forgetting something! The file was too large to upload so here is a link to the Revit and Dynamo file. I am using the BVN plugin for the stadium nodes. The massing is present in the project, it is called Mass 2 and needs to be reinserted once the file is open.

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**Author:** ![salvatoredragotta](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/salvatoredragotta/32/10078_2.png) [@salvatoredragotta](https://forum.dynamobim.com/u/salvatoredragotta)\
**Post date:** [December 20, 2017, 11:43pm UTC](https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544/4 "2017-12-20T23:43:58Z")

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Well, I’m not sure. I need to investigate more. Revit just crashes if I try to run your script.

Try to contact the author of the article.

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**Author:** ![steve.meyers](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@steve.meyers](https://forum.dynamobim.com/u/steve.meyers)\
**Post date:** [September 15, 2018, 10:47pm UTC](https://forum.dynamobim.com/t/seating-bowl-parametric-monkey-tutorial/17544/5 "2018-09-15T22:47:03Z")

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I’m at step 8 and only a Function is returned by the watch node. I’m using Dynamo 1.3 / Revit 2017 and it oddly created a weird line across my user workspace which I could not zoom to fit. At first, I suspected something to do with reconciliation, so ran from a new clean workspace. Still nothing and weird line. I then tried Dynamo 2.0 and still no output, but no odd line either.

I think my gangway mass may be causing the problem and tried creating it both as an extrusion and also as a void and extrusion. I also tried the select model element (singular) node for the gangway. Nothing. Any ideas?  
[stadiumBVN-S8.dyn](https://forum.dynamobim.com/uploads/short-url/uuSJqS2EvI5BbmZoS5hjkhWxIBx.dyn) (13.5 KB)  
[stadiumBVN.rvt](https://forum.dynamobim.com/uploads/short-url/ncCu4F8qydEFR7isurX2usC5M9w.rvt) (3.0 MB)
