ok. i rewound the rc motor with awg 34 magnet wire like before with 2 opposing coils.i used a bit over 7 meters,about 100-120 turns each coil and it measures 8.4 ohms dcr.
now it's a motor.it's easy to start from 6 volts and up.it goes well for 1 phase out of 6 driven half the time.
i got timing lights hooked up,but nothing to point them at yet.
t1 is a mje 340 and only gets warm at 13.8 v.next step is to try dual iso trafo timing on it.
3 phase motors have various combinations of coil and pole counts.before you go rewinding a motor draw a sketch of the poles and coils as a visual aid to understanding the characteristics of that combination. the floppy hub motor was 12 coils 16 poles,so i could run it on 1 or more factory wound phases as the 4 coils in each phase/strand all send a coherent bemf signal.i.e all face the same pole at exactly the same time.
this motor with 12 coils and 14 magnets can only give a coherent signal for zero crossing points for any 2 opposing and counterwound coils on the stator.hence my interpretation of it as a 6 phase motor.also if you rewind 2 opposing coils in 1 of these motors remember to divide the magnet count by 2.if you get an even number wind both coils the same way,say both cwise.if, like this motor 14 magnets divided by 2 = 7,then wind 1 coil cwise,the other ccwise as they face a north and a south simultaneously.
between being delta wound and the factory winding strategy wtf? these motors must seriously push against themselves and generate lots of avoidable heat in their standard application.maybe that's why it was $3 + shipping. could be 1 of a dud batch.nuthin else wrong with them.pull it apart,rewind it thus,drive it thus and happy days.i think it would be powerful and efficient with 6 windings, each switched with 1 of these timing circuits.more so if the revolt scheme can be successfully applied to this motor. *turns out that's a yes.
it has absolutely no ability as a flywheel.adding some inertia would probably be essential for a motor-gen/3bgs application.it has a 3mm shaft.
i found it handy to join 2 equal lengths of wire with a blob of solder,or you could just find the middle of a length, and a bit of heatshrink on top, and hold that with a thumb to the core of the stator to get started and wind each side from there.that way the turns can be got fairly even without having to count.just match the lengths.but then i'm just an amateur.
cheers.
now it's a motor.it's easy to start from 6 volts and up.it goes well for 1 phase out of 6 driven half the time.
i got timing lights hooked up,but nothing to point them at yet.
t1 is a mje 340 and only gets warm at 13.8 v.next step is to try dual iso trafo timing on it.
3 phase motors have various combinations of coil and pole counts.before you go rewinding a motor draw a sketch of the poles and coils as a visual aid to understanding the characteristics of that combination. the floppy hub motor was 12 coils 16 poles,so i could run it on 1 or more factory wound phases as the 4 coils in each phase/strand all send a coherent bemf signal.i.e all face the same pole at exactly the same time.
this motor with 12 coils and 14 magnets can only give a coherent signal for zero crossing points for any 2 opposing and counterwound coils on the stator.hence my interpretation of it as a 6 phase motor.also if you rewind 2 opposing coils in 1 of these motors remember to divide the magnet count by 2.if you get an even number wind both coils the same way,say both cwise.if, like this motor 14 magnets divided by 2 = 7,then wind 1 coil cwise,the other ccwise as they face a north and a south simultaneously.
between being delta wound and the factory winding strategy wtf? these motors must seriously push against themselves and generate lots of avoidable heat in their standard application.maybe that's why it was $3 + shipping. could be 1 of a dud batch.nuthin else wrong with them.pull it apart,rewind it thus,drive it thus and happy days.i think it would be powerful and efficient with 6 windings, each switched with 1 of these timing circuits.more so if the revolt scheme can be successfully applied to this motor. *turns out that's a yes.
it has absolutely no ability as a flywheel.adding some inertia would probably be essential for a motor-gen/3bgs application.it has a 3mm shaft.
i found it handy to join 2 equal lengths of wire with a blob of solder,or you could just find the middle of a length, and a bit of heatshrink on top, and hold that with a thumb to the core of the stator to get started and wind each side from there.that way the turns can be got fairly even without having to count.just match the lengths.but then i'm just an amateur.
cheers.
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