Re: [CAD_CAM_EDM_DRO] Re: spindles powered by REGULAR AC induction motor

Oh yeah, there was a story in the paper about two years ago. An
aircraft instrument technician in the St. Louis area was killed by an
aircraft gyroscope that blew up! I'm guessing he fired up a 12 V
gyro on 28 V by mistake, and it overspeeded! Now, this thing has
a rotor weighing about a pound, and it was presumably only going
twice its rated speed!

Likely 4x the speed. Remember "Twinkle Twinkle little star, power
equals V *SQUARED* over R". 2x voltage, 4x power. (dc motors and
resistors anyway).

-dp-
Organizer, The New England Rubbish Deconstruction Society; The NERDS.
We are the first US team to compete in the British Scrapheap Challenge
series. (called "Junkyard Wars" in the US) <a
href="http://www.the-nerds.org/" >The NERDS</a> We won the submarine
challenge. Watch us build a steam powered race car December 20.

This planet needs a lot more kids that think taking the lawnmowers'
engine apart is more fun than playing nintendo.