geo dome panel thickness and angle?

[sagee schachter]

hey there, i'm looking to make a small half geo-dome from 1" ply wood.

was wondering about a software or just a simple calculator than can give me the angles of the panels, i mean the angles in which i need to cut the panels for them to connect nicely..

not sure what's the proper term for those angles :)

thanx,

CJ.

[norm...@gmail.com]

You'll have to be a little more specific on what dome you were thinking of building....2V, 3V etc... that will determine the angles necessary.

Will the panels be self-supporting or do you plan on a frame?

[Gerry in Quebec]

Here are links to dihedral angle calculators in Microsoft Excel, posted earlier to this discussion group:

 

1)

https://groups.google.com/forum/#!searchin/geodesichelp/Dihedral$20Angles/geodesichelp/vH-B0eX-ccM/2wCNh4B1Kg8J

 

Filename: dihedral-calculator-geodesic-dome.xls

 

The Excel file is attached to the 5th message, dated 2/21/12, in the "Dihedral Angles" thread. Just plug in the chord factors.

 

2)

https://groups.google.com/forum/#!searchin/geodesichelp/Dihedral$20angle$20calculator/geodesichelp/a5upLyCT8f4/yxncHDeerCcJ

 

Filename: dihedral-1-trig-function.xls

 

3)

https://groups.google.com/forum/#!searchin/geodesichelp/Dihedral$20angle$20calculator/geodesichelp/u-Aa_oRjXvg/koXO5ip9DS0J

 

Filename: Dihedral-angle-panel-calculator-SIP.xls

 

- Gerry Toomey in Quebec

[Hector Alfredo Hernández Hdez.]

Is exact half diedral angle.

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[Hector Alfredo Hernández Hdez.]

Just half diedral angle, meadured from vertical..

[Hector Alfredo Hernández Hdez.]

But..... thinking in thinkness of playwood and perfect match... the true is that

Arent just a half, but two neirbor angles have a sum perfect diedral angle.

Soon I'll put pics of that.

El abr 25, 2015 8:52 a.m., "Hector Alfredo Hernández Hdez." <hecto...@gmail.com> escribió:

[Dick Fischbeck]

I hope there are no leaks! How do you do that?

[Paul Kranz]

Sagee:

The angles of the triangles are called "face angles.." The angles between the triangles are called dihedral angles. There are also axial angles which are the angles formed between the ends of the triangles and a line drawn towards the center of the circumscribed sphere. Fun stuff!

Paul sends...

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Very high regards,

 

Paul sends...

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