As you may have found by now, AutoCAD MEP 2012 introduced a new user interface for ducts. The goal of this was to move the interaction to the Properties Palette for adding and editing duct, similar to the changes made to pipe and conduit in prior releases.
For the most part, you will find that the settings in DuctPreferences have been moved onto the Properties Palette, making most configuration settings available everytime you add a duct, instead of having to dig into a separate set of windows.
The following series of images shows where the DuctPreferences settings in 2011 (image on left) correspond to the settings on the Properties Palette in 2012 (on the right). In a couple of cases, settings are still found in the DuctPreferences window, and some settings are now found in StyleManager.
Click on an image to enlarge.
Routing
Ducts
Vanes and Flanges
Flex Ducts
Parts
Connections
Adding Duct
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Thanks Martin! This is an excellent reference...one I could've used 4 mos ago lol. I produced a video of my own as part of a 'What's New in 2012' series, focusing on these changes alone. I might need to go back and double-check that I got all the details right, now that I have something "official" to go on :p
Posted by: Tim Kramer | August 08, 2011 at 01:30 PM
If DuctFittingModify is gone in 2012, what's the easiest way to modify (for example) a 45 deg. concentric transition to a 60 deg. transition- right now I'm finding it super frustrating to dig through sizes and reselect- I want my sizes to remain and just change the angle of the transition.. Thanks!
Posted by: RM | November 07, 2011 at 08:25 PM
Hi RM- It should be rather straight forward to do what you want... simply select the fitting, and modify the angle in the properties palette. See this linked video: http://youtu.be/CuKcmcXt4PI
Posted by: Martin Schmid | November 08, 2011 at 03:59 AM