# Line to duct

**URL:** <https://forum.dynamobim.com/t/line-to-duct/28957>\
**Category:** Revit\
**Created:** [November 27, 2018, 6:47am UTC](https://forum.dynamobim.com/t/line-to-duct/28957 "2018-11-27T06:47:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SHIBUJOSE](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@SHIBUJOSE](https://forum.dynamobim.com/u/SHIBUJOSE)\
**Post date:** [November 27, 2018, 6:47am UTC](https://forum.dynamobim.com/t/line-to-duct/28957/1 "2018-11-27T06:47:16Z")

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i was trying to make dynamo to convert lines to duct. its working perfectly for first time. if i change the duct size to create a new duct, size of previously created duct will also change. dynamo attached.[create duct by create method\_3.dyn](https://forum.dynamobim.com/uploads/short-url/vU3psjzQwtEU0p5quDvuH81x2wE.dyn) (19.0 KB)

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**Author:** ![Eloquence94](https://avatars.discourse-cdn.com/v4/letter/e/e56c9b/32.png) [@Eloquence94](https://forum.dynamobim.com/u/Eloquence94)\
**Post date:** [November 10, 2020, 7:41am UTC](https://forum.dynamobim.com/t/line-to-duct/28957/2 "2020-11-10T07:41:35Z")

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I’m actually also working on a set of codes which generates ducts from lines. Out of curiosity, how do you use your code?