Detect Clearance
To determine the clearance distance between two parts
1. Click 3D Access and then, in the Window group, click the arrow next to Toolbars.
2. Click > to activate the Modeling Commands toolbar.
3. In the Modeling Commands toolbar, click 
Clash. The Clash dialog box opens.
Clash. The Clash dialog box opens.4. Select Clearance in the Type box.
5. Under List vs List,
◦ Click 1st Parts and identify the first part. For instance, /housing_assy
◦ Click 2nd Parts and identify the second part. For instance, /battery_cover
6. Click 
.
.Creo Elements/Direct 3D Access displays an output window with the separation distance of the parts.
 | If you are only interested in clearances that fall within a specific distance, type this value in the Clrnce Dist box. |
Use:
List vs. List | To specify two lists of parts or assemblies. All elements of list one are checked against all elements of list two. This includes the simple case of just checking two parts. |
All in List | To specify a set of parts. All elements in the list are checked against each other. |
Calculating the Clearance between Parts
 | If you do a clash of assembly1 against assembly2, you get the shortest distance over all pairs in assembly1 and assembly2. To get the shortest distance between all parts in assembly1 and assembly2 you must select the parts via all parts in assembly1 and all parts in assembly2. |
Learn more
Also see Detect interference (clash) and Position parts and assemblies