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Dan Curhan

People Skills : 4281
Registration date : 2009-03-14
Age : 27
Location : Sarasota, FL

PostSubject: brushless motors   Fri Mar 12, 2010 11:57 am

So... Shred began life with an Exceed RC Alpha series brushless outrunner. It did its job fairly well, for a $12 motor. As I don't have much experience with brushless motors, I didn't realize that the wire leads coming off the motors are coated and unsolderable.... I had cut them short, soldered them to the ESC, and was running like that. I noticed strange things happening when I tried spinning up the disk, and it would almost struggle, then the ESC would kill power to it after two seconds because it thought that the motor wasn't spinning properly, and the motor was getting pretty hot. I untaped my solder joints, and saw that all but one or two strands in two of the three connections had come free. So, having bought two Turnigy replacements, I opted to solder banana plug connectors on the ESC, and replace the $12 Exceed RC motor with a $15 Turnigy. The difference astounded me. Granted, they're both cheap chinese motors, but I guess not all cheap chinese motors are made the same! The Turnigy has SO MUCH MORE TORQUE!! Spin up time was practically cut in half!

basically, the moral of the story is, when buying cheap chinese motors, don't buy Exceed RC. Buy TURNIGY!

If you like HEAVY METAL, check out my band.
Or my my other band.

-Captain of Copperheads 2 to pi, mastermind of the Dethinator, Creator of Conundrum, and Sultan of Shred. Heh. Sultan of Shred. It's kinda catchy... I like it!
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Chief Bottle Washer
Chief Bottle Washer

People Skills : 5866
Registration date : 2009-03-31
Location : Miami

PostSubject: Re: brushless motors   Fri Mar 12, 2010 12:08 pm

you need to sand the wired lightly to remove the coating, before soldering

Ready to Rumble combat robots
Advisor to MLEC BotsIQ team...2010 BotsIQ champions (1st and 2nd places)
Spinning Tortoise...Possibly the World's first Brushless Melty!!
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People Skills : 3324
Registration date : 2009-07-12

PostSubject: Re: brushless motors   Fri Mar 12, 2010 2:26 pm

Yup, I second Richard's word. Motors are wound using magnet wire, meaning they have a very light coating on them (because winding a motor without coating would short everywhere!). To solder to that stuff, you have to sand the coating off. Usually turns a more brilliant gold when ready.
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ULTRA contributor
ULTRA contributor

People Skills : 3858
Registration date : 2009-07-05
Age : 27
Location : PA

PostSubject: Re: brushless motors   Fri Mar 12, 2010 4:37 pm

yes turnigy is the cheap way to go Wink
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super contributor
super contributor

People Skills : 3621
Registration date : 2009-11-01
Age : 46
Location : Brownsville, Pennsylvania

PostSubject: Re: brushless motors   Sat Mar 13, 2010 7:16 am

My daughters boyfriend is out at an RC show in Lebanon PA this weekend 3-12-10 through 3-14-10..

He said they have some blowout prices on all kind of motors and electronics...

If anyone is in need of some motors and electro's send me a list and I'll pass it on to him to get the prices..

Might be a cheap way to fill up a shopping list!

Text my cell: (412) 691-1434
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