Hi Fabio, first the bad knews, Ludwig Retzbach's booklet is not available in English. I offered to do the translation but haven't heard from them since
You can of course experiment with the number of winds and thickness of the wire. Six coils will not work since you alreay have 6 magnetpoles, the motor would not know which way to turn. Either 4 or 8 coils. I don't have the winding scheme at hand here at my friends place, I know it's somewhere in the thread. I can look it up for you once I get home. You can read the German threads mentioned in the Ezone thread using online transation tools, just enter the internet address:
http://babelfish.altavista.com/babelfish/tr http://translate.google.com/translate_t
You can order magnets from:
http://www.supermagnete.ch (Switzerland)
http://www.engconcepts.net (USA)
http://www.engconcepts.net/Magnets/Pages/L...max_Magnets.htm http://www.aircraft-world.com/shopdisplayp...+CD-ROM+and+Acc
Engconcepts ((Mr.George) and aircraft-world (David Radford, a.k.a. Nippon Dave), deliver worldwide (posting and packiging costs are low), don't know if supermagnete delivers outside Europe. All three suppliers are very popular in motor homebuilders circles, see the discussiongroups:
http://www.yahoogroups.com/group/lrk-torquemax/ (English, moderated by me)
http://www.yahoogroups.com/group/moteur-perso/ (Français, moderated by Jean-François Delhove from Belgium)