Magnetic strength of Neu motor

My 1515/2.5D definately cannot be rotated by hand.

[macr0w]

Originally Posted by fkadir

My 1515/2.5D definately cannot be rotated by hand.

Is yours a Neu or a Tekno Neu?

Originally Posted by macr0w

Is yours a Neu or a Tekno Neu?

Mine's an older-version Neu. Apparently the newest motors from Neu have a new design to minimise cogging. :)

[zeropointbug]

'new design to minimize cogging' .... What the #$!@ could they have done differently to reduce cogging?! This is almost entirely up to controller design, not so much motor... but, who knows. What cogging has to be reduced anyhow? My Neu (1512) hardly ever cogs.

[lincpimp]

I have a 1515 1.5d, and was also supprised to see that it turned over easily by hand without a pinion. I am not sure how old it is, as I bought it used. I do have a medusa v2 motor, which is supposedly a neu clone. The shaft is much harder to turn than the neu.

I can still feel the magnet poles on my neu, it does not spin as easily as a hacker of feigao.

[What's_nitro?]

Originally Posted by zeropointbug

'new design to minimize cogging' .... What the #$!@ could they have done differently to reduce cogging?! This is almost entirely up to controller design, not so much motor... but, who knows. What cogging has to be reduced anyhow? My Neu (1512) hardly ever cogs.

Maybe, instead of having the stator slots be parallel to the rotor poles, they twisted the stator into a sort of helix so that the rotor's poles are always engaged to more than one "slot". Thus making it fell smoother since the poles aren't "jumping" between slots.

[zeropointbug]

That would be a slotless design...

[zeropointbug]

There are varying degrees of slotless as well...