Has anyone had any experience building stepper motors?

There's tons of information on stepper formulae, theory, basics, etc., but I haven't found any DIY attempts.

Thiis site, http://www.aerodesign.de/peter/2001/LRK350/index_eng.html was very cool, and the closest thing I've yet seen to a DIY stepper motor blog.

I'll continue to search, because I'd like to try my hand at building some motors, learning from my inevitable mistakes, then building some decent motors. :D

Interesting project! But I'm suspicious about performance of DIY stepper. I'd rather try to build a servo motor instead.. wait.. actually I'we been buiding those things in our shop.

We build three phase permanent magnet axial flux generators/motors (see image). This design gives 1.7 kW power at 250 rpm.

More info (sorry, Finnish only):
http://www.kylmatec.com/windg.php

xerxes,
Any way to tranlsate your website to english?

Phil

Translated version is coming when I have enough time to do it.

Here is picture of principle. Multiple rotors/stators can be stacked to get greater power.

tastefulasever,
i found this artical you might be interested in.
http://www.flyelectric.ukgateway.net/machin.htm
it tells how to make brushless motors.

just found another one for the lrk-torquemax
http://forums.radiocontrolzone.com/showthread.php?s=&threadid=84200
looks like it would make a good spindle motor.might make one myself to test the posibilities. :banana: