View Full Version : 56mm, 24 pole brushless outrunner kit

08-09-2005, 11:27 PM
I am currently working on my own version of the CDrom type outrunner motors. i have come across a good source for these huge 56mm 24 pole stators, and am currently working on my own custom rotors and backplates for these stators. If i were to get a working prototype, would anyone be interested in a wind-it-yourself kit type thing? Very similar to the go-brushless deal, except with a much higher degree of versatility because each of the parts are handmade out of lightweight aluminum by me. So, if you wanted a particular feature or mounting style, or you wanted a rotor to perfectly fit a certain number of stators, a certain prop size or even rotor face design (thickness, number, shape and placement of cooling holes etc) it would not be a problem to make it to your specifications, since it is not all programmed into a cnc machine, rather made on a manual mill and hand fitted.

Is anyone interested in something like this? Please reply if so, becuase i would like to see what the demand for something like this would be.

here is a picture of my first test rotor. it's not perfect, (hence the word test) but it will give me the idea as to what improvements need to be made before selling these. obviously, if i begin production, i will purchase the correct tools rather than just use what i have, and i will have much tighter tolorances than this model.

08-10-2005, 05:52 AM
Are you familiar with Ralp Okon's www.powerditto.de (http://www.powerditto.de) (English and German sites). It has lots of info on large diameter diy multipole motors.

And maybe the 'Crocodile' project will give you some more design ideas:
http://www.powerditto.de/crocodile-projectengl.html (http://www.powerditto.de/crocodile-project.html)
'Crocodile' discussion:
www.rcgroups.com/forums/showthread.php?t=392627 (http://www.rcgroups.com/forums/showthread.php?t=392627)
Sketches and drawings in this discussion:
www.rclineforum.de/forum/thread.php?threadid=88112 (http://www.rclineforum.de/forum/thread.php?threadid=88112&sid=&threadview=0&hilight=&hilightuser=&page=4)

08-10-2005, 07:48 AM
i've seen it. i had come across these motors, and i had searched google for everything and i was thuroughly convinced that i was the first to bring up this idea publicly, when someone gave me the link. however, my idea is rather than starting a production run, i would make each motor by hand anyway so why not offer my services to make a motor fit to each customer's tastes, size and configuration preferances? i am currently on summer break, and not having a paying profession, my time is worth little in cash, and so i dont need to charge much to be making more money than watching TV, plus i can be putting my mill and lathe skills to work.
i also have a wide veriaty of other stators as well, it's not just limited to the 56mm ones. however, those are the only ones that i can reliably obtain when my current supply runs out so those are the ones i am going to pursue the hardest.