recumpence said:This motor has been tested to 30,000 RPM without failure.
Matt
recumpence said:This motor has been tested to 30,000 RPM without failure.
Matt
Andje, I agree.Andje said:this soup can could open itself at about 20,000 rpm... you'd need a 50 stage reduction tranny.
liveforphysics said:recumpence said:This motor has been tested to 30,000 RPM without failure.
Matt
It's kinda a bummer to see 50kv on a test motor though. For a given voltage limit fixed by controller limits, it won't offer power advantages
..katou said:Dental drills go up to 100,000 rpm, and they seem okay.....Katou
..I didnt read it as a concern,..more a humorous comment 8)katou said:Would you care to explain your concern a little further? ..Katou
Whats your plans for a controler?coleasterling said:We'll be feeding this beast 120V nominal and well north of 200A if testing works out(which I am almost sure it will!).
Coffee cans are too big(I compared a few, ha!). The big soup cans are about right, but just a little small in diameter. Regardless, everyone else who has seen this thing immediately thought soup can for some reason. I dunno.
johnrobholmes said:Smaller, lighter, has more thermal mass on the motor. What is not to love?
liveforphysics said:It's all to love, and I love it, and I think it will be bad-ass. I just had my hopes up to see it be something with more power on tap than a normal 3220 is able to do.
And yes, you're absolutely right, in this configuration, it will be an absolute kitten on controllers. 12-fet will stay nice and cool, and be ultra reliable for it. Likely even a 6-fet would handle it fine. From extrapolating off the 3220 datasheet, the winding resistance should be well over 100mOhm, so it's like 1/5th the controller burden of driving the big HXT motor. The 100v shorted current for this motor is going to be well under 1000amps, and the rise time will be a nice gradual slope, so it should be friendly even to low PWM speeds, and super friendly to FETs. That's a really nice feature to have in a world where controller technology is lagging behind motors by a good bit.