N Gauger's Scratchbuild '09 Summer Challenge

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and where it is on the model - the "floor" of the entrance foyer

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Some fan blades = one in the Jig - the other to show what it looks like after i trim it to size ( 5" wide)

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It's going together now!
The Bricks are starting to go up....

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The fan is getting more blades attached.. Does anyone else see a "potential" problem here????

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There will be 10 blades around the "hub"... I put a bead of glue along both sides of both suppports, the same as is used on model rocket's fins.

Is this enough support for the fan blades??? i think it is - since the blades only weigh about 4 oz. each.
Yes, "times 10" equals 40 oz. Almost 3 pounds! Plus the Hub weighs about 1/2 pound...

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It's DONE!!!!! The fan - that is!!!!!
After a bunch of desigining and re-building and gluing, here it is i couldn't even wait for it to dry....

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Got the "power supply for it too 2 RPM Motor

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even "rigged" a pulley for the motor Matches the brass pulley on the fan above

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For refrence I installed the fan, now I can start the chimney The prototype:

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and my model:

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and the fan has been installed ansd it works great!!! (Prototype first)

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my model

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Danger Danger will robinson

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Danger Danger will robinson

Yup!!!

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Here's a little more finished of the area above