amazingdiy

Just playing around with tech stuff (as ALWAYS!) I discovered that you can build surprisingly
efficient propellers from cylindrical objects, or laminated on top of one.
Flight of scratch built quadcopter at the end, enjoy!
https://www.youtube.com/watch?v=JQmFwtc0HOw Quadcopter facts:
15x15 mm aluminum tubing and coroplast fairings
Take-Off-Weight: 4150g, It is a 1:4 scale model, could be built lighter if your goal is making a R/C quad.
Hover time: 25min with 14.8V 13000mAh
Motors: Turnigy LD3727A-1300 Brushless Motor
Propellers: 600 mm of DIY fiberglass!
Reduction: 130/20
Battery: 2x ZIPPY Traxxas 13000mAh 2S1P 30C (1400g, 34% of TOW)
ESC :40-60A (Oversized to cope with enclosed mounting)
Flight controller: KK 1.6 firmware

blvdbuzzard

I have used soda cans for prop molds for a long time. Way back when, you had to make the prop for your rubber powered plane. You would soak the balsa in water and amonia, then rubber band it to a pipe, can or other suitable curved surface, let dry, cut to shape.

Always fun to make instead of buying.


Buzz.