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Larry  
#1 Posted : Tuesday, October 21, 2014 9:29:02 AM(UTC)
Larry

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I am trying to draw an aircraft propeller with all its twists and changing profiles. I need to make the drawing so it can be exported to a CAM program for use on a CNC router table. Any help would be greatly appreciated.
Tim Olson  
#2 Posted : Monday, October 27, 2014 11:48:23 AM(UTC)
Tim Olson

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Joined: 2/2/2007(UTC)
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Hi Larry

My understanding is that the blade of a propeller is similar to a wing with additional pitch and chord thickness distributed across the length of the blade.

Below is a URL that has some basic considerations for a propeller plus a link to a CLARK Y airfoil in DWG format.

http://www.nmine.com/propeller.htm

Once you create and position your airfoils you could use the skin tool to create the surfaces.

If the ClarkY does not work, a fantastic source for airfoils is :

http://m-selig.ae.illinois.edu/ads/coord_database.html

Once you complete the blade portion I think you would need to design a hub and tip cap.

Tim

Edited by user Monday, October 27, 2014 12:37:36 PM(UTC)  | Reason: Not specified

Tim Olson
IMSI Design/Encore
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