tenshock brushless motors

[florianz]

Originally Posted by littlegiant

Yeah it looks heavy with all the metal in it. And definitely ugly!

...that's definately an important criteria

To me that looks really solid, clever idea, and is probably cheaper to manufacture.

Wrapping may NOT be the ultimate solution:

my Losi Xcelorin's Kevlar bonding/wrapping of the rotor got damaged by sand that got into the motor. That almost killed the rotor, I was able to fix it by putting super glue on it a couple of times. like that the kevlar didn't get loose any further.

The rotor of a mate's Losi xcelorin got seriously damaged like that: the magnets got loose, he didn't put super glue on it, then damage was too much.

They say that the newer rotors of the xcelorins (1/8) have now carbon-wrapping.

an other downside of a wrapping is:
it needs space, but the less space between the winds and rotor, the better.

[littlegiant]

Originally Posted by florianz

...that's definately an important criteria

To me that looks really solid, clever idea, and is probably cheaper to manufacture.

Wrapping may NOT be the ultimate solution:

my Losi Xcelorin's Kevlar bonding/wrapping of the rotor got damaged by sand that got into the motor. That almost killed the rotor, I was able to fix it by putting super glue on it a couple of times. like that the kevlar didn't get loose any further.

The rotor of a mate's Losi xcelorin got seriously damaged like that: the magnets got loose, he didn't put super glue on it, then damage was too much.

They say that the newer rotors of the xcelorins (1/8) have now carbon-wrapping.

an other downside of a wrapping is:
it needs space, but the less space between the winds and rotor, the better.

Y not just wrap the rotor with an ultra thin heatshrink over it? Just kidding. Hey u have have a very good point there. I didn't realise that sand can damage kevlar wrappings. But how did sand get into the xcelorin motor in the first place? Aren't the endbells sealed?

[lutach]

The problem is not the Kevlar, but the Epoxy used. Most epoxy works best with carbon fiber. I'll be waiting for results on vehicles running this motor(s).

I just ran mine, but I had to stop because the rear casing flew off after an agressive cartwheel. Guess I'll have to use glue to hold it in place.

I had the eagle tree with me, but somehow it's stuck in recording mode and my pc won't recognize it...

[florianz]

Originally Posted by littlegiant

Y not just wrap the rotor with an ultra thin heatshrink over it? Just kidding. Hey u have have a very good point there. I didn't realise that sand can damage kevlar wrappings. But how did sand get into the xcelorin motor in the first place? Aren't the endbells sealed?

The front/endbell are closed; but there are various mounting-holes for the screws in the frontbell, and that's enought to let sand in, which sands off the first layers of the kevlar. if you don't act early enought (sealing the holes wich are not used, sealing the kevlar-fibres with super glue), the magnets get loose.

I didn't believe what I saw when I opended the motor the first time, lots of sand, damaged bearing, damaged kevlar. Even though I keep my car clean inside!