Parametric sheet with parametric folding marks

[danielfgpontes]

I'm trying to make a parametric sheet, with instance parameters for length and width (I need it in instance because the sheet size [width: min 30cm - max 60cm; length: min 40cm - max 150cm] need to be variable, even in the same project). I've able to achieve almost everything I need but stumbled on the folding marks, I need then to be placed every 18.5cm, with is simple with array parameter with rounddown but the problem is that I can't find a way to move marks with variable width parameter that define the sheet upper border.
Image 01, as intedeed:

Image 02, the problem:

I will atach the RFA file here, it's a Revit 2022 file

 

[syman2000 · Accepted solution]

You may want to create a separate nested generic annotation family to achieve that array. Usually array won't lock in position within the current family.

[danielfgpontes]

Thank you! I just adapted your fix file with my previous array formula and it worked like the intended.