how to add attribute data

[Anonymous]

I have made a 3D model of a car, where i take every part of it as a different object. i want to store data of every object but i can not find any solution to it. For eg. the engine should be storing information about its characteristics, same for wheels, steering etc. i can attach an excel file but i want to split the data respectively to its relevant object. Plz help, it would be appreciated.

[WarrenGeissler]

If you are using AutoCAD Map 3D then you may want to look at Object Data as it is the easiest:

https://knowledge.autodesk.com/support/autocad-map-3d/learn-explore/caas/CloudHelp/cloudhelp/2019/EN...

Keep in mind it's a bit limited

If you are using plain AutoCAD then take a look at database linking:

https://knowledge.autodesk.com/support/autocad/getting-started/caas/CloudHelp/cloudhelp/2019/ENU/Aut...

If you have Map 3D and are more interested in Database linking - then Map 3D has an easier interface:

https://knowledge.autodesk.com/support/autocad-map-3d/learn-explore/caas/CloudHelp/cloudhelp/2020/EN...

[АлексЮстасу]

Yes, as WarrenGeissler put it, Map 3D has Object Data (OD) for that. Civil, Architecture, MEP still has Property Sets (PS).
But in normal AutoCAD it will be Proxy, and there will be no access to them.

By WarrenGeissler's first reference:
Create descriptions of the desired OD tables with the desired fields for the attributes - ADEDEFDATA.
Attach OD to graphics feature - ADEATTACHDATA.
You can enter and edit attribute values in the AutoCAD Properties window - Ctrl+1.
Etc.

Using OD and PS, you can define attributes for any objects, including 3D. But other Map 3D and Civil tools may be useless, not working with 3DSilid, etc.