[ChrisH]

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.

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