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Forums >> General Discussion >> Revit Project Management >> Conditional Parameters Setting In Revit

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Sat, Jun 23, 2018 at 7:05:38 AM | Conditional Parameters Setting In Revit




Joined: Fri, Jan 26, 2018
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Hello All,

I am trying to make a parametric model (attached picture)

I want to relate Bottom Circle Height with Height


Bottom Circle Height must be less than Height + Thickness of Top Plate

Can someone please help me out to derive its formula.


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Mon, Jun 25, 2018 at 12:55:42 PM | Conditional Parameters Setting In Revit




Joined: Wed, Aug 19, 2015
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I will assume you want the bottom plate thickness to be such that it touches the face of the top plate. If so you will need another parameter to do so.

Make a parameter called "Inner Circle Thickness Actual" and use this as the tickness for the bottom plate.

Then you will use this formula for the "Inner Circle Thickness Actual" 

if((Height - Top Thickness - Bottom Circle Height) > Inner Circle Thickness, Inner Circle Thickness, Height - Top Thickness - Bottom Circle Height)

This formula will use the Inner Circle Thickness when there is room for that value otherwise it will compute the left over space and use that value.

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Tue, Jun 26, 2018 at 12:25:52 PM | Conditional Parameters Setting In Revit



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Joined: Mon, Nov 19, 2007
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3.5 Stars: 6 Votes

Start in elevation by drawing reference lines to key dimensional boundaries (top of plate/s, bottom of plate/s). Place dimensions on these, lock them and associate them to parameters. Test to see that adjusting the parameters moves the reference lines. Now go to plan and draw each plate. Lock its centre to the family's fixed reference planes. Create radii dimension and change it to parameter. Now go to elevation and align bottom and top of plate to reference planes and lock them. Job done.


__________I'm the guy they come to when they didn't follow my recommended workflows.__________

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