topic Re: Variable array in Inventor Forum

Variable array

steven.coxVCM6J — Thu, 02 Oct 2025 12:12:46 GMT

Hi All,

I hate writing this post because there is a lot of solutions here, but I cannot seem to figure this out.

I want to create an array in an assembly that has a Max Spacing and is based on the width.

Ceil() and this unitless issue seems to be tripping me up. However, I am also using an imported Width parameter.

I will use this same setup in multiple locations (i.e. _Top) so it will be very useful to make work.

I am pretty sure I saw a video on this once but cannot get YouTube on my work computer!!!

Thanks so much for the help,

Steven

Re: Variable array

kacper.suchomski — Thu, 02 Oct 2025 12:21:27 GMT

In your equation there is a division (in/in) which logically cancels out the units.

Re: Variable array

steven.coxVCM6J — Thu, 02 Oct 2025 12:27:55 GMT

So why does the Ceil(Width / BF_MaxSpacing_Top) - 1ul Not work?

Or will that not accomplish what I want? Maybe I am going the wrong direction.

Thanks, Steven

Re: Variable array

steven.coxVCM6J — Thu, 02 Oct 2025 12:30:16 GMT

I guess one important note I left out of the original post is that I want to equally space BF across the Width.

Just more Parameters I supose.

Re: Variable array

andrewiv — Thu, 02 Oct 2025 12:36:39 GMT

Your instance count has to be an integer if you want to use it as a value for a pattern. I would set the formula to Ceil(Width/BF_MaxSpacing_Top)+1. Then your spacing formula can be Width/(BF_InstanceCount_Top-1).

Re: Variable array

steven.coxVCM6J — Thu, 02 Oct 2025 13:40:49 GMT

For some reason the InstanceCount formula does not work. What am I missing?

Thanks, Steven

Re: Variable array

CCarreiras — Thu, 02 Oct 2025 14:00:15 GMT

must be :

ceil

not:

Ceil

Re: Variable array

andrewiv — Thu, 02 Oct 2025 14:11:38 GMT

@CCarreiras is correct. That's my mistake, ceil cannot be capitalized.

Re: Variable array

steven.coxVCM6J — Thu, 02 Oct 2025 14:25:01 GMT

You have got to be kidding me!! I knew it was going to something I was overlooking but never expected that.

Thanks so much!!!!!