AutoCAD MEP General Discussion

AutoCAD MEP General Discussion

Active Contributor
31 Posts
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Registered: ‎09-30-2008
Post 1 of 3

Showing hidden center lines in ducts going down

258 Views, 2 Replies
03-16-2012 01:20 PM


how can i show the center lines in the duct that goes downwards hidden?  I do have the round part of the duct that is hidden showing that way but the centerlines show as cont. lines.  Does anybody have a solution to this?



11 Posts
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Registered: ‎01-28-2010
Post 2 of 3

Re: Showing hidden center lines in ducts going down

03-20-2012 07:52 AM in reply to: silviaberian

I believe that is a block. Poke around in the rise and drop styles under HVAC Objects in the Styles manager.

Product Support
519 Posts
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Registered: ‎08-23-2006
Post 3 of 3

Re: Showing hidden center lines in ducts going down

04-04-2012 06:36 AM in reply to: johnc1s

The centerpoint that represents where the center line goes down in a rise-drop block is mapped to a non-plot layer.  It is necessary to be able to select vertical segments in a selection set.  It also is handy if you need to Osnap to the center.  It should not plot unless someone changes the layer inside the rise-drop block itself.

Joshua Benoist, PE
Senior Support Specialist
Product Support
Autodesk, Inc.

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