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Forums >> Revit Structure >> Technical Support >> Invisible Structural Trusses

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Fri, Nov 8, 2013 at 7:05:35 PM | Invisible Structural Trusses

#1

Katiebones


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Joined: Mon, Aug 12, 2013
4 Posts
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I made custom trusses based on a tutorial video months ago. I just found out that some of the sizing isn't correct. So I went into the family and fixed the problem. My problem is that when I try to load it back into the project, the truss is now invisible. I can see the basic geometry if I hover my cursor over where it is which tells me it is at least in the model. Last time this happened I just had to assign materials to the truss (my truss is made of double L angles) but when I try to edit the newly invisible truss, it doesn't do anything. Even if I try to edit the materials before editing the familty, there is no effect. There is no problem with VG or detail level.


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Fri, Nov 8, 2013 at 8:15:22 PM | Invisible Structural Trusses

#2

WWHub


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Joined: Tue, May 16, 2006
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3.5 Stars: 370 Votes


You have obviously changed something in the family.  We can't even guess what that might be.  If you load the family, someone will look at it.


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Fri, Nov 8, 2013 at 8:55:13 PM | Invisible Structural Trusses

#3

Katiebones


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Joined: Mon, Aug 12, 2013
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I did not save any of the attempts I made to change the truss. Once I loaded it into the project and saw it had turned invisible, I closed the project and reopened it. I didn't want to end up with an invisible truss I couldn't fix.

The problem is the heights on the start height and end height (which needs to be adjusted along with the slope of the top chord). When it was originally drawn, 6'-4" is the end heights and 11'-0" is the centerpoint height. I found that once loaded into the project, when the angles are added, the truss takes on new dimensions (I assume it is because the angles are centered on the geometry lines).

When I edited the truss, I originally took out the existing top chord and redrew it correctly (the top chord ends about an inch higher than the end height). When this caused the invisibility issues, I reset to the original truss and made sure not to delete or redraw anything. The next few times I simply moved the lines to where they needed to be so as to not end up with a "new" top chord.

The problem persists whether I only move the lines (so I don't delete and recreate anything) OR if I draw a whole new line. I never got any messages while editing the family (no constaint messages, etc.).



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Fri, Nov 8, 2013 at 9:00:11 PM | Invisible Structural Trusses

#4

Katiebones


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Joined: Mon, Aug 12, 2013
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So sorry, I do not know why the site posted that three times.


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