# PolyBeam from PolyCurve

**URL:** <https://forum.dynamobim.com/t/polybeam-from-polycurve/75259>\
**Category:** Advance Steel\
**Created:** [April 8, 2022, 4:35am UTC](https://forum.dynamobim.com/t/polybeam-from-polycurve/75259 "2022-04-08T04:35:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![larryharry8W47E](https://avatars.discourse-cdn.com/v4/letter/l/a183cd/32.png) [@larryharry8W47E](https://forum.dynamobim.com/u/larryharry8W47E)\
**Post date:** [April 8, 2022, 4:35am UTC](https://forum.dynamobim.com/t/polybeam-from-polycurve/75259/1 "2022-04-08T04:35:55Z")

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Hi, am very new to Dynamo and trying to complete something from scratch using an Advance Steel PolyBeam, if I try this with a straight beam it works, I can’t find any examples of the use of PolyBeams in the examples provided by Autodesk. Wher am I going wrong?

 ![PolyBeam](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/d/c/dce944be817f95e36092b9157d5cbc4185629f59.jpeg)

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**Author:** ![tranaivoarisoa](https://avatars.discourse-cdn.com/v4/letter/t/8edcca/32.png) [@tranaivoarisoa](https://forum.dynamobim.com/u/tranaivoarisoa)\
**Post date:** [April 11, 2022, 11:36am UTC](https://forum.dynamobim.com/t/polybeam-from-polycurve/75259/2 "2022-04-11T11:36:18Z")

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Je pense que vous devez mettre True (Boolean) on ConnectLastToFirst to make it work. C’est la seule solution que j’ai pu trouver malheureusement.

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**Author:** ![larryharry8W47E](https://avatars.discourse-cdn.com/v4/letter/l/a183cd/32.png) [@larryharry8W47E](https://forum.dynamobim.com/u/larryharry8W47E)\
**Post date:** [April 12, 2022, 2:47am UTC](https://forum.dynamobim.com/t/polybeam-from-polycurve/75259/3 "2022-04-12T02:47:37Z")

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Thankyou for the reply, it does work as you say, it seems the PolyBeam must be closed, a bit limiting.