For the above example you have to create the six datum planes as below:

You have to create all the required Unigraphics datum plane now.

Press Ctrl + m key from the key board now.

Next, it will ask for the already created components to be added in the assembly, for top down assembly you need to click Cancel here.

You can change the name of the UG part/assembly as well. Also, you need to set the Folder, where you wish to save your Unigraphics files.

Here you select Assembly template from the Templates list.

Open the UG NX 6 (or whatever version you have) and click the Create New File icon and you will get a window ( New) like below:.

Anyways, for creating the assembly by top down approach in UGS, do as below: This sort of assembly is used for press tool die models. Let’s say we have to create a Unigraphics assembly of three rectangular plates like below:

So, if the main assembly is at the top most level and the components are in bottom most level, then you are coming from top to bottom and it’s top down assembly. In short, in the top down approach you have to create the blank assembly first and then you have to go on creating the sub-assemblies and parts in it. What is the Top Down 3D CAD Assembly Approach? In this UG tutorial we will discuss the top down approach of UGS assembly and its application. Like ProE, Unigraphics also permits you to create an assembly using two different approaches: top down assembly and bottom up assembly.

Ug unigraphics nx