enquiry about unable to draw autobending cable tray

[amg.monaco]

 it is unable to draw cable tray with auto bending function which apply automaticly to joint of cable tray

but in some example project the auto bend function does well. when auto bend function is able,

pipe's auto bend function is not able.

what is it? what option is realated with that point ?

[CoreyDaun · Accepted solution]

For that particular Cable Tray Type, it is likely that there is no default Cable Tray Fittings assigned, which is a common case if the Project was starting using a different Project Template or no Project Template. Select a portion of that Cable Tray and click "Type Properties", on the Properties palette. In the following dialog, use the pull-downs for the various Fittings to establish the default Cable Tray Fittings that will be automatically used by Revit when drawing the Cable Tray.