Which arrangement of magnets in a homemade electric motor is better?
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I don't know if I interpret the colors correctly. But at the top, it seems to me that you have to put another punch on the rotor so that it gets started. At the lower motor, the movement always begins in the same direction, no matter how the position at the beginning is. I would therefore prefer the lower one.
But in the upper picture of this is the arrangement of such small electric motors that you get at Amazon for 5 euros, and they always run in the same direction.
This depends on when the current flows through the different coils. I don't recognize that in the sketches.
The lower picture is of course better!
The upper one can't work.
And why is the arrangement of the upper picture for each smaller electric motor like that?
If she's not, look right again… there's no magnets so wide!
Something… or they are multi-pin!!
But the magnets are bent or not in smaller engines?