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Normal Topic Contra-Rotating Propellers for Rubber Power (Read 1486 times)
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Re: Contra-Rotating Propellers for Rubber Power
Reply #4 - Feb 11th, 2020 at 7:31pm
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If you can do the CAD you have the option of the suggested Program files, your programs (mine's TurboCad) but also offers DWG,DXF,etc. when you save the one you're working on. You might want to check with your friend and see what his printer requires. 
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Re: Contra-Rotating Propellers for Rubber Power
Reply #3 - Feb 11th, 2020 at 3:12pm
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I can probably do the CAD.  Not sure I can get it saved in the proper format.  One of my co-workers has a 3D printer.  I might just have to ask him what I need to do.
  
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Re: Contra-Rotating Propellers for Rubber Power
Reply #2 - Feb 11th, 2020 at 12:30pm
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I'm sure that would be possible.  It would require a CAD or .DWG, .DXF, or similar drawing file of each of the components inorder to print them.  I'm sure someone out there in cyber land can do this. It's beyond my capabilities at the present.
  
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Re: Contra-Rotating Propellers for Rubber Power
Reply #1 - Feb 11th, 2020 at 9:59am
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I've been wondering if anyone has tried to 3D print all the parts needed for a counter-rotating prop.  Something like what Don Ross shows in his book.  I don't have a 3D printer, so I don't know if this is possible.
  
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Contra-Rotating Propellers for Rubber Power
Sep 13th, 2019 at 6:13pm
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Prosper (modeler on HPA) used this system on his Martin-Baker MB-V 21 and I drew this up from his photos on HPA.  It's a viable option for anyone building a contr-rotating prop aircraft...
Click Here for his build thread
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contra_rotating_props_rubber.PDF ( 724 KB | 111 Downloads )
If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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