Doing multistrand is a pain. You have to pair all the long wires before winding. I bet you could find an equivalent cross-sectional area that would still be windable with one wire. I’ve got 22 gauge and it’s still very pliable.
I gave up winding my motors because it was very hard to access with the stator permenantly stuck on and found I kept making shorts with the necessary roughness of getting it on. I did learn some things though… and I found an LC meter for measuring the inductance was really helpful in seeing if there were shorts and also how good a winding I was doing. (A multimeter’s resistance measurements were not accurate enough for such small resistance and a short wouldn’t show!) I found if I rushed and ended up with a messy tooth it had much less inductance than consistent loops. You want to end up with them all consistent as well of course.
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I spent at least 10 hours unwinding and winding all included…take your time or else it’s a shorting nightmare.
As I wrote the LRK wind makes it much easier.
Don’t try to just put everything deep inside or it will eventually collapse and you won’t get much in. Try to wind the tooth itself from front to back and back to front. Everytime I ended up with space available but I couldn’t get the wire through the shrinking slot between the teeth.
Use a small wooden dowel to push stuff down. Even a destroyed pencil worked for me.
I really wanted to succeed at this myself. I have a lot more respect for the winders of these motors. It takes time
***when u say “20 strands” do you mean 20 small wires, as that would be the nomenclature, or do you mean 20 turns around each tooth? U need to redo the turns around the tooth the same to redo the same kv. Someone above said otherwise. So 20 turns with 8 thin strands or 20 turns with one thick one is the same kv