Attached Duct not moving with Diffuser

[asommer]

2013 MEP - I have diffusers hosted to a Reference Plane.  If I move the plane, the diffusers will move, but the duct detaches itself from the diffuser.  The flows seem to remain.  This did not happen in previous versions.

Anyone else notice this?

[alan.quinn]

I tested and it seems to work for me. See the following video and file

https://dl.dropbox.com/u/11938886/07639255_Video_1.mp4

https://dl.dropbox.com/u/11938886/07639255_File.rvt

If you are doing something different and its not working I will need to know your steps. Please create a video and post for review.

Thanks for posting.

[asommer]

Try a Sidewall Diffuser (Vertical Face Hosted).

[asommer]

Also, How do you create a video from your Revit?  This would be handy for training...

[alan.quinn]

Same results in that it works. See the below and Jing (its free) is the tool I use for video's.

https://dl.dropbox.com/u/11938886/07639255_File_1.rvt

https://dl.dropbox.com/u/11938886/07639255_Video_2.mp4

Thank you,

[asommer]

I will try the video soon.  I have an area of exposed duct, with exposed sidewall diffusers (No Wall).  I have to place the diffuser on a vertical Reference Plane, not perpendicular like you had it.  Revit will not connect a duct to a diffuser that is hosted to the duct's end.  I place the diffuser on the Vertial Reference Plane, then draw a duct from the diffuser's connector, tapping it into a main duct.  I then move the Reference Plane, noticing the diffuser moves, but the duct does not extend with the diffuser.

In the sketch you sent, try moving the wall.  you might see the duct not moving with the diffuser.

[asommer]

I Downloaded the Jing and created this... Please see Attached.

[asommer]

Sorry, could not Attach SWF or a WMV.  How do you attach anything here?  How did you attach the mp4? It gives me a warning that it is not a supported extension.

[alan.quinn]

You can only attach images. If you have a Dropbox account place the Revit file and video in it and send me the address. Thank you,

[asommer]

I cannot share my Revit file, but I can send you the wmv.  I think this works, I've never used this before.

https://www.dropbox.com/sh/n7d1g3sdaslxett/h4drBDAJmQ

[asommer]

I don't think that worked.  You could send me a message with your e-mail, I could send it directly.  I never used drop box before.

[alan.quinn · Accepted solution]

In your video it looks like you have a main duct with seceral Diffusers conencting to it with short ductign between. The order of operations is as follows:

1. Click on Diffuser and choose Connect Into.

2. Pick the duct you want to connect too.

3. In Plan > Lock and Align the Diffuser to the Ref Plane.

4. Move the Ref Plane.

I'm not sure what expereience you have in the application but it you do not have any formal training it may be a good idea to get some. Also the Autodesk Wikihelp site for 2013 is full of great information on ducts and many other features in Revit. Go here for search results on Ducts: http://wikihelp.autodesk.com/search?source=help&product=Revit&q=ducts&language=ENU&version=2013

I have also places another video and file in my Dropbox. I did not do the above steps on one diffuser and duct. I suggest you practice in my file.

https://dl.dropbox.com/u/11938886/07639255_Video_3.mp4

https://dl.dropbox.com/u/11938886/07639255_File_3.rvt

[asommer]

Well, The diffusers I use are Face Hosted, so I cannot place them in mid-air without a Reference plane to host to.  I also don't have to "Align" and "Lock" the diffuser to the Plane.

I see you had to use the "Connect Into" to get it to work properly.  Is that the only way?  In previous versions, I had no problems with this.  when you connect duct to a diffuser (manually), it should remain connected, even when you move the diffuser.  Now, you have to tell the Revit you want it to remain connected, even after you physically connect it?  What is the reason for the change?

I've been using Revit MEP since version 2008 (with formal training) , and Architectural since 2004 (my 10 yo. nephew could figure it out).

Please let me know why you have to use "Connect Into" to get the connection to stay.