Slo-Syn yet again

[kanga]

I have just picked up a couple of Slo-syn SS422T synchronous motors. SS indicate 72 rpm, 422 is the torque. Also rated at 220V 0.3 A.


Can these motors be used in a normal way as stepper motors,eg using geckodrives? It seems to have been asked several times before in round about ways without a clear answer:
http://cnczone.com/forums/showthread...863#post686969

http://cnczone.com/forums/showthread...212#post640893

and many more.

An interesting link is from the Paul Jones site for modification of a slo-syn into a stepping motor."The only drawback is they are slower than death."

http://www.cnconabudget.com/freebies.html

Does this conversion apply to all slo syn motors. They have dc stepper motors and ac synchronous motors - is this conversion applicable to both, are they the same motor?

I know this is leading to a fundamental understanding of the workings of stepper motors which I do not have but maybe someone would be kind enough to provide some light or links! These motors seem to be cheaply available from stripped machines so it would be useful to know if they are a waste of time or a bargain.

[rowbare]

I think it is a waste of time. If you are going to spend the money on a Geckodrive then get motors that will work properly with it. All you would end up with is a crappy motor of uncertain specs and dismal performance.

The other threads you referenced are talking about slo-syn steppers not synchronous motors.

[kanga]

Yes I think you are probably correct.

What is causing part of my confusion is that the motor has a clear plate stating "synchronous/stepper motor" but I think this generic and saves on making two different nameplates. Anyway this may help to save others making the same mistake of buying what they believe to be a stepper motor.