Pemox

[pemox1]

Sorry, of course, you´re right.
There are no related laminates like I mean. And of course, it´s difficult to make a coil around it.
I meant - it´s easy to take a transformer and - with it´s overlapped laminates should the gap between the laminates not really become a problem.

The cores, you linked, looks great - but take care of welded joints, may be, that´s worse than an air gap.
It´s a good idea to take only E-laminates - and a simulation shows not a great difference, as you can see attached.

But I think, the greater problem will be the rotor - not the stator ?
Have you any idea, how to make the rotor?

[Airstriker]

Found also this one:
http://www.sz-wholesaler.com/p/505/531-2/mini-motor-rotor-82-158119.html

However, there is not much place for a coil in this stator. The rotor also cannot be used unfortunately. Have to think about the rotor's design for a second... or two

For sure it would have to be laminated like this one:
http://china-rotor.en.made-in-china.com/product/XoNEDLxCnSWY/China-Motor-Rotor-Core-Distributor-YC0003-.html

but without the middle part - there has to be a non-magnetic separation between the leafs. Not easy ;/

[Airstriker]

Also, as for the stator laminates, remember to use only Cold-rolled non grain oriented silicon steel (CRNGO). The problem is, that very often in the transformators they use CRGO laminates, as GO (grain oriented) is anisotropic, offering better magnetic properties than GNO (grain non-oriented) in one direction. As the magnetic field in inductor and transformer cores is static (compared to that in electric motors), it is possible to use GO steel in the preferred orientation. But we don't want it We want GNO.