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Contra-Rotating Propellers for Rubber Power (Read 194 times)
Reply #4 - Feb 11th, 2020 at 8:31pm

Sky9pilot   Offline
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Kelso, WA 98626 USA

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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. 
Sky9pilot
 

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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Reply #3 - Feb 11th, 2020 at 4:12pm

Rubber Rookie   Offline

Stick & Tissue
Fayetteville, Arkansas

Posts: 9
 
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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Reply #2 - Feb 11th, 2020 at 1:30pm

Sky9pilot   Offline
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Stick & Tissue
Kelso, WA 98626 USA

Posts: 11456
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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.
 

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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Reply #1 - Feb 11th, 2020 at 10:59am

Rubber Rookie   Offline

Stick & Tissue
Fayetteville, Arkansas

Posts: 9
 
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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Sep 13th, 2019 at 7:13pm

Sky9pilot   Offline
Administrator
Stick & Tissue
Kelso, WA 98626 USA

Posts: 11456
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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
Sky9pilot
 

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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