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Post Info TOPIC: Someone has VAWT 3D moddeling CAD file ?
mzamora


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RE: Someone has VAWT 3D moddeling CAD file ?
 

I forgot. What are the dimensions of the chord, height and diameter of the turbine?



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mzamora


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RE: Someone has VAWT 3D moddeling CAD file ?
 

I was kind of out of life and now that I'm back on the internet I've seen your assignment. Let me get home and I'll make a basic model.

Do you need just the blades? In which format do you prefer to have it?

Regards,



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Caleb


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RE: Someone has VAWT 3D moddeling CAD file ?
 

brother paul wrote:

how is that command in freecad ?

 I don't know.  That is just a command in SolidWorks.



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- Bryan

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brother paul


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RE: Someone has VAWT 3D moddeling CAD file ?
 

how is that command in freecad ?



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brother paul


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RE: Someone has VAWT 3D moddeling CAD file ?
 

where is the 3d file



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Caleb


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RE: Someone has VAWT 3D moddeling CAD file ?
 

Not a problem. Just use the "shell" command. :-)

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- Bryan

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brother paul


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RE: Someone has VAWT 3D moddeling CAD file ?
 

i was thinking, evidently when you make a model to be printable, you need to think about the 'inside' of the blades. you should make them hollow but structuraly strong enough, fe 3-5mm thick and internal supports.



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brother paul


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RE: Someone has VAWT 3D moddeling CAD file ?
 

i got it, i don't hav good cad software...



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Caleb


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RE: Someone has VAWT 3D moddeling CAD file ?
 

More recent 3D CAD packages allow for helical extrusions.  I've had pretty good results using just 60 data points for a blade, 90 should be plenty for something to be pretty.  You then take that profile and sweep it along a helical path.  To get the new profile, I imagine you would create a plane perpendicular to the helical path and slice the solid.



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- Bryan

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brother paul


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Someone has VAWT 3D moddeling CAD file ?
 

ok i have the following problem...

the description of the assignment is in the pdf

and the 3D model is in the wrl file

just discuss how you could do this ? Don't feel obliged

 

i have no problems to create an naca2420 airfoil in cad, just import the coordiantes files, but i don't get it how i can make it helicoidal ?

 



-- Edited by brother paul on Wednesday 20th of June 2012 12:32:14 PM

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