# Cable tray support

**URL:** <https://forum.dynamobim.com/t/cable-tray-support/19472>\
**Category:** Uncategorized\
**Tags:** revit, archi-lab, excel, python, dynamo\
**Created:** [February 27, 2018, 2:27pm UTC](https://forum.dynamobim.com/t/cable-tray-support/19472 "2018-02-27T14:27:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![asawanUJ95K](https://avatars.discourse-cdn.com/v4/letter/a/ed655f/32.png) [@asawanUJ95K](https://forum.dynamobim.com/u/asawanUJ95K)\
**Post date:** [February 27, 2018, 2:27pm UTC](https://forum.dynamobim.com/t/cable-tray-support/19472/1 "2018-02-27T14:27:06Z")

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Hi

do any body know how to support cable tray or duct automatically with proper level ??

thanks

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**Author:** ![Nick\_Boyts](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/nick_boyts/32/76313_2.png) [@Nick\_Boyts](https://forum.dynamobim.com/u/Nick_Boyts)\
**Post date:** [February 27, 2018, 2:51pm UTC](https://forum.dynamobim.com/t/cable-tray-support/19472/2 "2018-02-27T14:51:42Z")

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Like this?

> [@Sloped ceiling hanger rod length not working](https://forum.dynamobim.com/t/sloped-ceiling-hanger-rod-length-not-working/14042):
>
> hello, I am trying to write a script to reduce the hanger rod length by the correct distance based on the slope of the ceiling. I had it working but I had to select every starting hanger and second hanger manually. So I tried to speed it up using this springs node. SelectedElements(ordered) to have it work faster. I thought I could get it to work using a while loop but its choking on me. Any advise? thanks!

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**Author:** ![asawanUJ95K](https://avatars.discourse-cdn.com/v4/letter/a/ed655f/32.png) [@asawanUJ95K](https://forum.dynamobim.com/u/asawanUJ95K)\
**Post date:** [February 27, 2018, 3:00pm UTC](https://forum.dynamobim.com/t/cable-tray-support/19472/3 "2018-02-27T15:00:24Z")

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No thanks

support modeling done but its elevation is so far under cable tray , i need to make support stuck under cable tray.

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<div class="post-metadata">

**Author:** ![Nick\_Boyts](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/nick_boyts/32/76313_2.png) [@Nick\_Boyts](https://forum.dynamobim.com/u/Nick_Boyts)\
**Post date:** [February 27, 2018, 3:12pm UTC](https://forum.dynamobim.com/t/cable-tray-support/19472/4 "2018-02-27T15:12:01Z")

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Cable Tray has a parameter Bottom Elevation that tells you exactly where the bottom of the cable tray is. Get this value from your cable tray and use that to place or calculate the location of your supports.