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I found that photo on http://www.mccauleyandson.com/html/what.html
I've spoken to Joe McCauleuy, who reflects what you say Ron - these props worked well when through hub exhaust is required. I figure they should be faster than an equivelent through-hub cleaver
" Three may keep a secret if two of them are dead" Ben Franklin
" ------- well Doctor what have we got a Republic or Monarchy? A Republic he replies if you can keep it"
Benjamin Franklin, 1787 Constitutional Convention, as recorded by signer James McHenry's in his diary at the Library of Congress
Location: SW Orlando, Fl
I'm looking to get a 3D model printed once I've finished my design, anyone have any knowledge on different forms of plastic? Generally available ones are ABS, PLA and Nylon. Looking at ProPulse props it seems they chose Nylon, although it is fibreglass reinforced.
I suggest you use ABS. PLA pretty much s*cks to machine or shape. Been there done that, had to get new part made of ABS. Have no experience from printed nylon parts. donīt expect to use a printed propp for anyting but mock-up. IF you donīt use a Titanium printer that is
If you print with ABS you run a greater risk of the part warping(depending on the competency of the person running the printer). A possible idea is to print it in PLA then cast it. If you print in PLA, mold around it with plaster or sand, heat the mold so all the PLA melts out, then cast it you can obtain pretty good results. The same process can be done with ABS you just need to get the mold hotter than for PLA.
http://3dtopo.com/lostPLA/
Thanks for the replies, I'll probably just get one printed in ABS for show. I was looking at metal additive printing but the prices are still very high.
mathrich - thanks for the link, very interesting stuff. Think I'll look into that some more once the project is done
I have 4 or 5 old 2 blade yamoto props. Not the brass ones. They are stainless.If you would like to mess with them you can have them.
I'm not the op but I could use one. (: I'd like to try and print then cast a propeller like I described above. It would be nice to have a real race propeller to design off of.
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