Thread: New Product Change Sun 10 blade 70mm
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Old Aug 03, 2012, 03:20 PM
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United States, TX, Grand Prairie
Joined Nov 2005
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Originally Posted by frank40 View Post
I modified a CS 90 to a 70mm version, I started by cutting the motor mount and the stators out, it was sanded to fit a 70 fan-house that I made of fibreglass. Then I cut the rotor to fit, whit about 0.8 mm spacing to the fan-house wall. I borrowed a 1850KV out runner spec. to max 1600W. ( Still trying to find the right motor). First try with 7 cells gave me 2.1Kg at 2KW... I noted that the air was hot at high power, so I guess the efficiency of the motor is low at this point. The scale was not moving all that well, so after fixing this and with full charged batteries I got 2,6 Kg peak at 2,3KW ( for a very short time)
Pray tell, how were you able to cut the blades down and balance them?

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