How to associate a level or reference plane to an in-place family

[steve5JY5S]

Hello - I have created a column with an in-place family (extrusion) . . . how do I tie (associate) the top of that column to a level or reference plane? I see where you can give the "Extrusion End" a parameter, how do I use that to tie it to a level?

[syman2000]

When you edit in-place, did you click on edit workplane and change the level?

[alan.johnson7YLND]

I don't think you can use the Extrusion End parameter that way, but you could just Align and lock the top face of your column to a Level or Ref Plane.

Or create it as a family using the Column template which has an upper level reference.

[barthbradley · Accepted solution]

Why don't you Align the Extrusion to the Levels in Elevation View before you finalize and close out of In-Place modeling mode?  

[steve5JY5S]

Thanks, all - yes, I did align/lock the top of the column to the level, that's how I've always done it. I just wondered if you could do it thru the parameters in its properties, that way you could go to its properties and see which level it was associated with; thought maybe that was a better way to do it. No biggie - I'll just keep doing it that way.

[syman2000]

You can tie the in-place family parameter with global parameter.

[ToanDN]

Lower and Upper Levels are specific properties of Column family templates, not in place families.  If you want top or base offset then place reference planes in the family to constrain the extrusions, then place parametric dimensions from the planes to the levels.