why is a neu better than a feigao?

[lincpimp]

Originally Posted by _paralyzed_

makes sense. I learn so much here.

Just about everythig I know about rc has come from here and experimenting. This really is a great forum!

Originally Posted by magman

Yes, Yes I am!

Thought so. Don't be mad, I told them that you and your "partner" would be happy to go shopping with them!

[zeropointbug]

Just to elaborate on the laminations a bit more... the laminations play a large role in the efficiency of there small motors because when you have a magnetic field at a decent frequency on a piece of iron, it will heat up, it heats up because it causes 'micro turbulence's' within the field and causes little whirls of current, or 'Eddy currents', these currents are basically micro shorts, which are doing NO work, and making only heat as the biproduct (also affects magnetic strength a small amount). The higher frequency you go, the more heat is created in this manner, basically a linear curve, that's why when you add enough cells to a setup the rpm's increase, and this causes lot's of heat buildup, in particular a feaiaiago motor is cursed with this symptom. This happens because iron is conductive... NOW, if we were to make very thin sections of this iron and electrically insulate each lamination with a resin/bonding agent, then the Eddy currents are much smaller, and thus less heat is created, and less energy wasted equals more energy to make motive power, hence a more efficient motor.

Just plain tolerances/quality control make a better, more efficient motor as well, which the feiaiaiaieiegao's are missing.

Shouldn't there be a sticky post on this kind of stuff here? This is RCM!

[littlegiant]

Originally Posted by zeropointbug

Just to elaborate on the laminations a bit more... the laminations play a large role in the efficiency of there small motors because when you have a magnetic field at a decent frequency on a piece of iron, it will heat up, it heats up because it causes 'micro turbulence's' within the field and causes little whirls of current, or 'Eddy currents', these currents are basically micro shorts, which are doing NO work, and making only heat as the biproduct (also affects magnetic strength a small amount). The higher frequency you go, the more heat is created in this manner, basically a linear curve, that's why when you add enough cells to a setup the rpm's increase, and this causes lot's of heat buildup, in particular a feaiaiago motor is cursed with this symptom. This happens because iron is conductive... NOW, if we were to make very thin sections of this iron and electrically insulate each lamination with a resin/bonding agent, then the Eddy currents are much smaller, and thus less heat is created, and less energy wasted equals more energy to make motive power, hence a more efficient motor.

Just plain tolerances/quality control make a better, more efficient motor as well, which the feiaiaiaieiegao's are missing.

Shouldn't there be a sticky post on this kind of stuff here? This is RCM!

Does this mean that Air core motors suffer no iron loss since there is no iron cores in them?

[zeropointbug]

Originally Posted by littlegiant

Does this mean that Air core motors suffer no iron loss since there is no iron cores in them?

Even being an air core motor, there is still iron in them, as a magnetic shield around the stator, which is magnetically coupled to the winds that are contained therein. The rotors of a cheap motor will also be one piece, non-sintered, which also are doomed to the same eddy currents as a crappy non laminated iron stator core, which heats up the rotor. Because the rotor is not directly thermally coupled to anything for active cooling, they just heat up and heat up, and this is another reason why feiago's cannot typically run very long without over heating or burning up. They need heatsiking and fans, which not very many people here like to use.

[_paralyzed_]

thanks zeropointbug, that's more of what I was looking for

Originally Posted by lincpimp

Just about everythig I know about rc has come from here and experimenting. This really is a great forum!

i thought you only "experimented in college", I knew you were still curious!

[lincpimp]

Originally Posted by _paralyzed_

i thought you only "experimented in college", I knew you were still curious!

Yeah, still curious, but not bi-curious like you Harold... I still to women, singles or multiples if at all possible. I even try to make sure the camera-person is female, but that is not always possible.

Originally Posted by lincpimp

Yeah, still curious, but not bi-curious like you Harold... I still to women, singles or multiples if at all possible. I even try to make sure the camera-person is female, but that is not always possible.

i can hold the camera and if ya get exausted you can tag me in