How to Work With Parametric Arrays and Constraints in Revit Families

Applying parameters to arrays in Revit can be challenging and typically comes with a number of warnings if not done properly.

In this BIMsmith Revit Tutorial, Pete Heibel covers the basics of a useful workflow when defining parametric arrays, including nested families, reporting/instance parameters, and constraint techniques to better handle user input.

[tylerwallace]

5:55 for the array portion, this is what I needed, thanks!

[tres]

This was awesome!
So much packed into this.
I was close to doing this on a product that has this function on a trellis system.
The formulas are clutch!
Thanks, BIMsmith!!!

[Fayad]

@2:29. I did not see the dim in parameters options to map the profile width and depth. what am missing? I did add the parameters in the profile family.

[mthornhill]

Nice Video. Very helpful. Maybe slow down a touch so we can keep up a little better.

[KevinCaron-dz]

Thanks, super cool video. It's simpler to put the formula for the number of louvers as Panel height / Louver width, it gives the same result.

[StpdNameSomeoneElseNotTaken]

At 2.25 when you go into the type properties, the Depth and Width parameters, where do they come from, when I go in to type properties of my profil, theres no dimension parameters there?

[evgeniydenisyuk]

Hi, BIMsmith
Thank you for tutorial. I want to count amount of louvers into spec. But when I enable "shared" into every nested family, the final family is crashing down. Could you advise me something to do?

[Fayad]

how do you even get to that initial setup? I added dim with parameters to them but I can't change them unless if I click on my lines to make sure they are working. would that be the same thing?

[zsombokd]

Is there a good way to create an array, but have the opportunity to individually offset the position of elements?

[MalavikaJayan-bi]

I made this with void sweep, to make an array of openings in a panel instead of louvres. the void isnt cutting the panel(extrusion). can anyone tell me why?

[liliyan]

I did not really get it about open en closed. How the formula controled the Rotation. I thought should make it with type catalog to let it open or close.

[realblackmonday]

Great. Pity the resolution on the screen is bad. Could not read some of the symbols used to constrain the angle of rotation

[gggygg]

Great presentation but to me this is a lot of steps, since I am 'toopid. Have you compiled the steps in written form so I can follow in my usual glacial manner?

[rijncruz]

Dude, I followed your formula. All I ever get are errors. I'm out, my mind's getting crazy. :((((

[StpdNameSomeoneElseNotTaken]

At 2.25 in type properties, where do the dimension parameters come from? When I go into type properties if my profil I have no dimension parameters