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Re: That is easy for you to say...
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Originally Posted by CJO
The FP motors are good as far as they go, however, sums them up quite nicely. During the nationals alone, we had to replace our FP motor 4 times, so, yes they have a lot of power, but I have literally seen copper melt out of the casings.
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Then you have been running them too hot or too slow. I design mechanisms to operate at 75% of free speed and 25% max torque. This leaves plenty of margin power (approximately 50%) and with the high rpms you get plenty of cooling air through the motors. By operating on the fast side of max power, when things bog down, you actually get an increase in power. BTW I learned this the hard way myself. I am ashamed at what I did to our poor little Van Door motors our first year. Talk about torture
ChrisH
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Christopher H Husmann, PE
"Who is John Galt?"
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Also, I'm tired of the "FIRST is a simulation of the real world"-- it isn't. If the real world was like FIRST, there wouldn't be any need for this organization. - cadandcookies [more] 
11-01-2005, 17:03
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