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Forums >> Revit Building >> Technical Support >> REVIT 2015 Stair - Straight Run to Curve Run

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Wed, Dec 3, 2014 at 6:59:21 PM | REVIT 2015 Stair - Straight Run to Curve Run

#1

alabaster2513


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Has anyone come up with a positive solution for a steel pan stair that has a run that transitions from straight to curved? I have a fairly complex ornate stair that I am trying to use multiple railings and the stringer to sweep along the edge. I am attaching a basic version just to illustrate how the stringer doesn't quite align which causes problems with our railing as well. I've tried stringers, railings, sweeps, swept blends, adaptive components. Nothing seems to work properly.



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Wed, Dec 3, 2014 at 7:20:55 PM | REVIT 2015 Stair - Straight Run to Curve Run

#2

WWHub


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alabaster - is that one stair sketch - not two?


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Wed, Dec 3, 2014 at 7:26:31 PM | REVIT 2015 Stair - Straight Run to Curve Run

#3

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just one. it was originally started and a component stair then converted to sketch


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Wed, Dec 3, 2014 at 7:34:51 PM | REVIT 2015 Stair - Straight Run to Curve Run

#4

WWHub


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That miss-alignment should never have happened - I don't see how it did.   Seperate sketches or maybe changed tread depth maybe but I have never seen this on a single sketch.

 

Send to autodesk. 


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Wed, Dec 3, 2014 at 9:09:49 PM | REVIT 2015 Stair - Straight Run to Curve Run

#5

alabaster2513


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Yeah I even tried from a OTB template just to make sure it isn't my custom template messing things up. Watch this video and see what happens. It's a head scratcher.

 

http://screencast.com/t/JEN2LdxE


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Wed, Dec 3, 2014 at 9:14:35 PM | REVIT 2015 Stair - Straight Run to Curve Run

#6

WWHub


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I tried this myself and it has the same problem.   I guess I had never done this.  It appears to be a bug.


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Wed, Dec 3, 2014 at 9:48:42 PM | REVIT 2015 Stair - Straight Run to Curve Run

#7

WWHub


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Alabaster - did you notice that Revit doesn't use the same stringer in the curve area?  It uses a smaller section.   I don't know where it gets it because the element says it is the same stringer.

 



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Wed, Dec 3, 2014 at 10:11:41 PM | REVIT 2015 Stair - Straight Run to Curve Run

#8

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Yeah, when a curve meets a straight line it seems to shift and warp. I had tried changing the stringer to a C-channel, same effect. Then I tried a custom profile for the stringer, same effect.

 

I know what my boss will say... "So you're telling me this Revit VooDoo can't build simple stairs?!"

 


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Thu, Dec 4, 2014 at 2:04:58 PM | REVIT 2015 Stair - Straight Run to Curve Run

#9

WWHub


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It can do simple stairs.   Don't start with a component stair.   A regular stair sketch which only has a box stringer works just fine.   It is the stringer that is the problem.  Redo your stair from scratch and live with the box.



Edited on: Thu, Dec 4, 2014 at 8:05:35 AM

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Fri, Dec 5, 2014 at 5:06:59 AM | REVIT 2015 Stair - Straight Run to Curve Run

#10

pijpiwo


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With the stair by sketch, setting the slope of the boundary to ‘sloped’ seems to fix the issue with the stringer. The railing is still kinda screwy though.

The component stair (converted) just totally refuses to cooperate. However, with the ‘sloped’ boundary line and if you flip the stair direction a few times, it does make the difference. It doesn’t fix the problem, it just looks better somewhat.

Weird.



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