Step motori sa 4 zice

sasa979: imam ja svu elektroniku od tog stampaca iz kog je i izvadjen,ali ovo cudo meni treba samo da vrti i nista vise ako je to moguce bez nekih komplikovanih zahvata
hvala jos jednom

zica49: Nisam primjetio nikakvu razliku pre i poslije otvaranja i zatvaranja....

how to disassemble a Nema stepper motor?

That's the easy part. The hard part is remagnetizing the rotor...

At the stepper motor factory, they (with some exceptions, your mileage may vary) magnetize the rotor after assembling the motor, by putting the whole motor in a giant electromagnet with carefully shaped pole pieces, then clobbering it with a monster pulse. Because the rotor is held in place, this actually works.

The alternative requires carefully slipping a pre-magnetized rotor in place using an alignment fixture that prevents it from flopping around. We shade-tree mechanics don't have that fixture.

Anyhow, when you take the thing apart, the rotor smacks against the stator, its magnetic field shorts through the armature, and that partially demagnetizes the rotor. That's the hand-waving explanation, but it's close.

The motor will seem to work after you put it back together, but the rotor has only a fraction of its original magnetization and so develops only a fraction of its original torque. If that's enough for what you're doing with it, all's well, but you may find the motor doesn't work nearly as well as it used to.

It's much better than no motor at all, so you have nothing to lose...

Good luck!