Re-winding a PMDC motor?
I have a 12V 5000RPM 15A PMDC motor and even at its top speed I can stop it by hand which is just not right. I took the armature out and here is what I found:
Its a 2pole with 16 winding slots, each winding is quite large but theirs only 3 wraps! I know if you half the wire surface area and double the wraps you get half the RPM. Currently the rotor has 3 wraps per coil of 18guage wire with easily enough room for 10x that.
What wire size and how many wraps should I re-wind this motor to get maximum torque at 2000RPM?