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    AutoCAD MEP

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    Active Member
    Posts: 6
    Registered: ‎08-24-2008

    Flex duct take off to air terminal

    921 Views, 9 Replies
    06-29-2011 12:32 AM

    I'm sure I'm missing something simple here but I can't figure it out. In MEP 2012 when I click on the add duct grip on an air terminal and connect the terminal to the trunk line I get flex duct as expected but it connects to the bottom of the trunk instead of the side. Take off is 10" round and trunk is 20/20. What am I missing here? How do I get the flex to connect to the side of the trunk as in previous versions?

     

    Thanks

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    Active Member
    Posts: 6
    Registered: ‎08-24-2008

    Re: Flex duct take off to air terminal

    07-29-2011 06:38 AM in reply to: shane

     

    Any Ideas?

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    Employee
    Posts: 1,278
    Registered: ‎11-16-2005

    Re: Flex duct take off to air terminal

    08-04-2011 08:55 AM in reply to: shane

    can you post a simple sample file of the 'before', then provide a video demonstrating the steps you are using? (I.e., using Jing)

     

    Something like this: http://screencast.com/t/3xzfiamMzUX 

     



    Martin Schmid, P.E.
    Product Manager - Analysis and Countrification
    Architecture, Engineering, and Construction
    Autodesk, Inc.

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    *Expert Elite*
    Keith.Brown
    Posts: 754
    Registered: ‎03-13-2008

    Re: Flex duct take off to air terminal

    08-05-2011 07:01 AM in reply to: shane

    Out of curiosity, are you using the line, arc or spline method.  I find that the spline option works the best and arc is definately a better solution than line.  Line will take a direct route to the duct and will not allow the flex duct to flex.  It might be worth the time to make sure that this is not what is happening.


    Keith Brown AutoCAD MEP BLOG | RSS Feed
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    Active Contributor
    Posts: 42
    Registered: ‎10-17-2009

    Re: Flex duct take off to air terminal

    08-05-2011 10:48 AM in reply to: Keith.Brown

    With 2012 just draw a duct and a terminal, then use the terminal's add duct grip to connect to the duct. It always connects to the bottom, in fact it will go out of its way to do so. I dont think it is user error here.

     

    If you use the add flex command and do not use the terminal's add grip, you get a side mounted takeoff as expected.

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    Employee
    Posts: 1,278
    Registered: ‎11-16-2005

    Re: Flex duct take off to air terminal

    08-05-2011 11:35 AM in reply to: Micaletti

    I'm not able to reproduce "It always connects to the bottom"

     

    See linked.. both attach to the side... using CTRL + grip:

    http://screencast.com/t/HkbgDiJdigDf

     

    Even in a case where it isn't clear if it should connect to the side or the bottom, it still connects to the side:

    http://screencast.com/t/FJcfC05YMbzf 

     

    If you can help provide cases that provide unexpected results, I can get them to Dev and PD to see if it can be made to act more sensibly.

     

    TIA_

     

     



    Martin Schmid, P.E.
    Product Manager - Analysis and Countrification
    Architecture, Engineering, and Construction
    Autodesk, Inc.

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    Active Contributor
    Posts: 42
    Registered: ‎10-17-2009

    Re: Flex duct take off to air terminal

    08-05-2011 11:56 AM in reply to: martin.schmid

    Holding CTRL, then clicking the add grip starts the add flex command. Like I said, that works.

     

    Setting the "Terminal-duct connection" setting to "Flexible" and using the grip without holding CTRL will net you a flex duct and a bottom takeoff.

     

     

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    Employee
    Posts: 1,278
    Registered: ‎11-16-2005

    Re: Flex duct take off to air terminal

    08-05-2011 12:51 PM in reply to: Micaletti

    I definately see different behavior between 2011 and 2012... but not as has been described.

     

    In 2011, I see the flex connects to the side... but in 2012, a connection fails to make... the same drawing is used in both screencaptures... first 2011.. then 2012:

    http://screencast.com/t/jHPc7zkX

     

    Can you provide a case where in 2011 it connected to the side, but in 2012 it connects to the bottom?

     



    Martin Schmid, P.E.
    Product Manager - Analysis and Countrification
    Architecture, Engineering, and Construction
    Autodesk, Inc.

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    Active Contributor
    Posts: 42
    Registered: ‎10-17-2009

    Re: Flex duct take off to air terminal

    08-05-2011 01:39 PM in reply to: martin.schmid

    In your last video, the 2011 example is connecting to the bottom of the duct, not the side. It will do that no matter the elevation of the two parts.

     

    This is not a problem for me because I do not use the terminal add grips in this way, however it does not look like intended behavior in either example.

     

    If holding CTRL is the intended method, the "Terminal-duct connection" "Flexible" option should not be available, or it should work like CTRL was used.

     

    Regards,

     

    Steven

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    Employee
    Posts: 1,278
    Registered: ‎11-16-2005

    Re: Flex duct take off to air terminal

    08-05-2011 01:49 PM in reply to: Micaletti

    oops, you're right, I mis-typed it is clearly on the bottom, and that was my point... the prior posts indicated this was only a problem with 2012, but since I am seeing this in 2011, I would expect it to work the same way in 2012.

     

    Additionally, since I am not seeing this in 2012, I'm curious about the posts that indicate it is happening this way in 2012... in what cases is it working that way?

     

    In any event, the behavior is different between 2011 and 2012, and that should be looked into... additionally, I appreciate the feedback that you'd expect it to be consistent with the CTRL method.

     

    Cheers-

    MS



    Martin Schmid, P.E.
    Product Manager - Analysis and Countrification
    Architecture, Engineering, and Construction
    Autodesk, Inc.

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