[ron_van_sommeren]

Magnet suppliers for do-it-yourself motors:
http://www.engconcepts.net = http://www.supermagnetman.com
http://www.supermagnete.de (Euro's) = http://www.supermagnete.ch (Swiss francs)
http://www.neodymium.de = http://www.berlin-magnete.de
http://www.gobrushless.com
http://www.aircraft-world.com
http://www.magnetladen.de
http://www.komodohobby.com
http://www.strongrcmotors.com
http://www.cdrworks.com/
http://www.ibs-magnet.de

[ron_van_sommeren]

http://www.modellbau-letmathe.de/
http://www.brushless-kit.de/
http://www.high-torque.de = http://www.high-torque.com/
http://www.torcman.de/

Curved/arced magnets are available from Mr. George:
http://www.engconcepts.net/

Aceasta postare a fost editata de ron_van_sommeren: 05 June 2005 - 07:22 PM

[pavcostel]

Dear sir,
Also in Romania you can find all kind of powerfull magnets. Personally I use them for replacing in the western motors, as Lafert and others. (but for higher voltage and industrial applications). The only problem remain the order: if is not enough, they don't start the lines, and the price will be higher!
I think if somebody need seriosly this,he can contact the producers, but will need a lot of data, as field strenght, direction of field and others parameters.
Thank you anyway!


Best regards,
Costel

P.S. - maybe is more interresting how to build a brushless controller for around 30-40 Amps, because the materials in others forums are not so good.
Almost all have the big problem of start, because without sensors the rotor position cannot be known.Sometimes or some motors have problems even with Jeti or %^&&^%#$%&^ controllers! Personally I think iit will be a good subject for us!

Aceasta postare a fost editata de pavcostel: 05 June 2005 - 06:34 PM

[ron_van_sommeren]

Goedendag :) Costel. It's a known problem, manufacturers will not sell/produce in small quantities. Same here in the Netherlands. As for data, have a look at the links I provided, the most important (only) parameters are: strength, orientation, maximum temperature (H, SH, UH) and plating (nickel, gold, etc). It would be nice if some Rumanian diy motor builder would take some in stock for his fellow builders. How about a group order??

Anyway, ordering from http://www.aircraft-world.com is easy. Worldwide delivery for 2.50 $ postage and packaging. The firm is based in Japan but the owner, David Radford, is from the USA. Lots of members of the do-it-yourself brushless motor group have ordered from him and from Mr.George: http://www.engconcepts.net

I already started a diy brushless controller thread in this forum:
http://www.rhc.ro/fo...t/ST/f/8/t/4942

Aceasta postare a fost editata de ron_van_sommeren: 05 June 2005 - 07:31 PM

[pavcostel]

Dear sir,
Yes, you're right in some problems. I spoke only in my name, but it will be nice to go with some group order...

Also, for the controllers, It is very interesting and me too I want to have some results. I know about the new topic, also same subject in many Forums. Still frustrating about results, with peoples involved who have far more technical possibilities.
I don't want to be negative, take it just as one info. Maybe someday it will be useful.

Best regards,
Costel

P.S. - see on controllers thread!