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Forums >> General Discussion >> Revit Project Management >> I cannot figure out how to model this piece...

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Fri, Jan 20, 2012 at 11:06:40 AM | I cannot figure out how to model this piece...

#1

Pdoak


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Joined: Wed, Dec 22, 2010
34 Posts
5 Stars: 1 Votes


I have a foundation I'm trying to model and cannot figure out how to take it beyond what I have. It is a foundation that 4 pipes will be coming into and mounting to the face. The 4 pipes are a mirrored image of each other, so if you split it in half the two on the left are same as two on the right, just mirrored. Each of the pipes are coming in at a different angle and skewed.

So far, I have been able to get the pipes cut off at the foundation tangential to the radius, and the mass I have created so far creates the general shape of the foundation with the faces flush with the tangential face of the pipe (except I need to offset the faces down about 2" to allow for connection plate and grout), but I need the foundation to be rounded in elevation view, not segmented as I have it now. However, I cannot figure out how to create the new mass. I have tried sweep blends but can't figure out how to get it to work. It needs to be accurate too. I was able to hide the foundation in elevation and just create a filled region in the shape I want, but it would be nice to have an actual modeled element so I don't need to do that.

I've attached images of what I have so far. Please let me know if anyone has any ides, or let me know if it's possible.

Thank you!



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101936_Plan_view.jpg101936_3d_View.jpg101936_Front_View.jpg101936_Rear_View.jpg101936_Side_View.jpg

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Fri, Jan 20, 2012 at 11:19:17 AM | I cannot figure out how to model this piece...

#2

WWHub


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Joined: Tue, May 16, 2006
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I assume you might have more than one of these?  In any case, why not do this as a family?  And why a mass?  I would make it be a foundation.

 

Just do a curved extrusion, then cut that with multiple voids to get your flat surfaces.  Then add the pipes and cut those with voids if you need to.


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Sat, Jan 21, 2012 at 6:12:48 AM | I cannot figure out how to model this piece...

#3

Typhoon


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Like WW said don't use mass for that, just create "in-place" for that foundation in the right category with a "solid blend" then use a Void to cut what you don't want, and, for those pipes create a "generic model face based" where you can control the radius, lenght, thickness of those pipes and with a little more work create the grout where you can have a parameter to control the angle of the grout in project (instance parameter), use "Ref. LINES" for that!

Hope this help...

 



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101972_column1.png101972_column2.png101972_column3.png

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Mon, Jan 23, 2012 at 1:38:02 PM | I cannot figure out how to model this piece...

#4

Pdoak


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Joined: Wed, Dec 22, 2010
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I think I have it (still a mass) almost where I want it, it's getting the sloped top that I seem to be having problems with. I can't seem to be able to figure out how to go about forming the void sweep blend so that it leaves me with a sloped top, where it is at the correct elevation at the point where the pipes come in. It seems that the correct shape to cut would be half an elliptical cone, but I can't figure out how to get it so it's accurate... sorry to be redundant... Any suggestions? It looks like, Typhoon, your example's pipes come in tangential with the face of the foundation. How did you do that?


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Mon, Jan 23, 2012 at 4:14:45 PM | I cannot figure out how to model this piece...

#5

Pdoak


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Joined: Wed, Dec 22, 2010
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I was finally able to get something to work! The mass I had, and the way I had it, allowed me to place 3d points at the proper points along the foundation. I then used 3d spline to create the shapes along the curved, sloped foundation, and used the shapes to make voids which I used to shape the foundation properly. Thanks for your help! Attached are some images: There's a couple things I would have done differently from the beginning, which would be what you suggested instead of using a mass.



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102048_Plan_view2.jpg102048_Front_View2.jpg102048_Side_View2.jpg102048_3d_View2.jpg102048_Render_of_Spine_Foundation.jpg

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