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Old 08-30-2012, 01:06 PM
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iankoglin iankoglin is offline
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Join Date: Mar 2009
Posts: 453
Different winding Directions

Originally Posted by norman6538 View Post
Thank you Ian for your input. You are the first person to get your head wrapped around
the coil/commutator/btush timing stuff. I'm cogitating/thinking about the cw/ccw point.
I did nothear anyone say the coils had different winding directions. Is that true folks?

My big concern now is about proper 180 degree coil/commutator/brush electrical matched phasing. If this is not right it will degrade the potential and we have to get all the potential
there is. The 2 brush even combination with the odd coil setup is probably designed to make the motor start by never being at a magnet coil lockup point. So for now I am sticking
with two pole where its dead on.

G'Day Norman

Take a length of wire say 1 meter long wind it CW around a round piece of pipe wood broomstick or whatever as a core say 20 turns.
Take it off the core and what do you have a coil of wire 20 or so turns
Now carefully bend this coil in half at 180 degrees and now notice that this coil seems to now be one strand two separate windings joined together half CCW and half CW CCW

Kindest Regards

Kogs still at it
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