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How to do an organic Egg roof

9 REPLIES 9
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Message 1 of 10
Anonymous
1018 Views, 9 Replies

How to do an organic Egg roof

Anonymous
Not applicable

A2-View.PNGA-View.PNGFrontFrontSideSideT-View.PNG

How can I make this shaped roof. This roof was made in Rhino. Unfortunately the revolve tool will not work in this instance as the Egg radii and form is not constant.

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How to do an organic Egg roof

A2-View.PNGA-View.PNGFrontFrontSideSideT-View.PNG

How can I make this shaped roof. This roof was made in Rhino. Unfortunately the revolve tool will not work in this instance as the Egg radii and form is not constant.

9 REPLIES 9
Message 2 of 10
ToanDN
in reply to: Anonymous

ToanDN
Consultant
Consultant
You could just import the Rhino model in as a mass and create the roof by face.
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You could just import the Rhino model in as a mass and create the roof by face.
Message 3 of 10
barthbradley
in reply to: Anonymous

barthbradley
Consultant
Consultant

Sure looks to me like a 180 degree Revolve would work -- along with an extrusion for the base.  Is the "egg" profile not identical on both sides of the longitudinal axis?   

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Sure looks to me like a 180 degree Revolve would work -- along with an extrusion for the base.  Is the "egg" profile not identical on both sides of the longitudinal axis?   

Message 4 of 10
constantin.stroescu
in reply to: Anonymous

constantin.stroescu
Mentor
Mentor
Accepted solution

I suppose that ToanDN' s sollution is the most obvious one in this case.

Anyway you can do it in Revit too. One way could be by using Mass modeling and then, Roof or Wall by Face....

In my example a simplified form using only nine reference points. I've used an ellipse as bottom pattern.

Image 3.png

 

 

Constantin Stroescu

EESignature

I suppose that ToanDN' s sollution is the most obvious one in this case.

Anyway you can do it in Revit too. One way could be by using Mass modeling and then, Roof or Wall by Face....

In my example a simplified form using only nine reference points. I've used an ellipse as bottom pattern.

Image 3.png

 

 

Constantin Stroescu

EESignature

Message 5 of 10
Anonymous
in reply to: constantin.stroescu

Anonymous
Not applicable

That is excellent, thank you very very much for the guidance, that is awesome.

 

If I may ask another question pertaining to the model? Now what if we want to put a skirt at the bottom of the model, so the convex top merges into the skirt with a concave curve and then it almost goes completely flat...as seen in the pic.

Convex top into concave bottomConvex top into concave bottom

Or would I do that in a separate model and reference it back to the dome shape??

Thank you again.

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That is excellent, thank you very very much for the guidance, that is awesome.

 

If I may ask another question pertaining to the model? Now what if we want to put a skirt at the bottom of the model, so the convex top merges into the skirt with a concave curve and then it almost goes completely flat...as seen in the pic.

Convex top into concave bottomConvex top into concave bottom

Or would I do that in a separate model and reference it back to the dome shape??

Thank you again.

Message 6 of 10
Anonymous
in reply to: ToanDN

Anonymous
Not applicable

Hi ToanDN

I have imported the model as reference and tried roof by face and wall by face, and unfortunately it did not work.

However thanks for the input, appreciate it.


 

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Hi ToanDN

I have imported the model as reference and tried roof by face and wall by face, and unfortunately it did not work.

However thanks for the input, appreciate it.


 

Message 7 of 10
Anonymous
in reply to: barthbradley

Anonymous
Not applicable

Hi Barthbradley

180 degree revolved worked in the back portion because that is symmetrical, however the front portion is not symmetrical to that. Also from a convex top it then blends into a concave skirt.

Thanks tho for your feedback

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Hi Barthbradley

180 degree revolved worked in the back portion because that is symmetrical, however the front portion is not symmetrical to that. Also from a convex top it then blends into a concave skirt.

Thanks tho for your feedback

Message 8 of 10
Anonymous
in reply to: Anonymous

Anonymous
Not applicable

Thanks all who have given feedback. Based on Constantin's method, I managed to do my egg dome with additional point to get the inflection [concavity at the ends].

One problem that I am having is that it will not work with roof by face. I have to use wall by face and then it makes the roof. I suppose we can make a brick vaulted roof.Brick vaulted eggBrick vaulted egg

Thanks all who have given feedback. Based on Constantin's method, I managed to do my egg dome with additional point to get the inflection [concavity at the ends].

One problem that I am having is that it will not work with roof by face. I have to use wall by face and then it makes the roof. I suppose we can make a brick vaulted roof.Brick vaulted eggBrick vaulted egg

Message 9 of 10
constantin.stroescu
in reply to: Anonymous

constantin.stroescu
Mentor
Mentor
Accepted solution

So , as you already did it, you can do it by increasing the number of points.

Another way could be by using Loft function: a series of horizontal closed profiles merged together, something similar to my following screencast:

 

Image 1.png

 

 

 

Constantin Stroescu

EESignature

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So , as you already did it, you can do it by increasing the number of points.

Another way could be by using Loft function: a series of horizontal closed profiles merged together, something similar to my following screencast:

 

Image 1.png

 

 

 

Constantin Stroescu

EESignature

Message 10 of 10
Anonymous
in reply to: constantin.stroescu

Anonymous
Not applicable

Hi Constantin

Wow that is amazing, a second way of doing the same thing, cool, thank you very much.

It looks like a helmet, but the principal is there. This is a much easier way of doing it then?

 

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Hi Constantin

Wow that is amazing, a second way of doing the same thing, cool, thank you very much.

It looks like a helmet, but the principal is there. This is a much easier way of doing it then?

 

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