Interesting design, :-) I wonder what the weight-advantage is against a CD-ROM LRK with all the CA glue and big massive ferro-cores. These coils are easy to ...
Olaf, Its the simplest axial flux motor. The coils need to be between the magnetic flux when the efficiency will be much better. Much of disc drive motors are...
2539
lrk-torquemax@yahoogr...
Aug 1, 2003 12:38 pm
This lrk-torquemax mailing-list help message is sent out every month and upon subscription. CONTENTS ... * LIST ARCHIVE & SEARCH * MESSAGE DELIVERY OPTIONS *...
I've been looking at the LRK brushless motor idea for a while, and I think it's the way to go until prices drop on commercial products. However, the speed...
Hi all, I received the message below from Yahoo Groups. Only item 1 is relevant for our lrk-torquemax mailing list.Item 2 is not relevant because I disabled...
Yes, of course. Sensored BL controller is simple enough. Only add 3 half-bridge ends with needed power and the sensors. Hall-effect sensors be finded from disk...
Hi all, A book about designing Brushless Permanent Magnet Motor Design, by Duane Hanselman: http://www.eece.maine.edu/motor/ The price is in the OUCH region,...
Hi: For information in American English see: http://www.onsemi.com/pub/Collateral/MC33033-D.PDF The chips are fairly large. The instructions say that a PCB...
Hi all, A cd-rom/lrk homepage, some nice ideas: http://free.pages.at/flying/Motor.html Testbench: http://free.pages.at/flying/Modellfliegen.html Met...
jaa, nice "wooden things" but unfortunately 1 phase stuff. First moror is 9 tooth cd-rom, OK. The second one need to heve 3 stages like it. I have maden from 3...
Hi all, An Ezone thread about outrunners and controller problems, in the 'Casle Creations' vendors subforum. CC's Shawn Palmer is doing a good job there: ...
Hi Ron Thanks for that link. I'm using a CC 45Amp controller (on my CD motor - going to fly it today!) and find the info very relevant. Groetjes Christo (South...
... Hi Herbert, the author wrote, that he built this 3 Gramm 3-pole same way as a Mini-LRK and so its a BLDC-motor. Its the right size for the Eco Piccolo-heli...
We look a different motors I think. These 2. and 3. motors about I wrote impossible to use as Piccolo tail motor ;-) But no matter - its a last possibility to...
My vote goes to George Mizzel of http://www.engconcepts.net. I made a small order of 5mm square magnets for a cd-rom motor I'm building. George responded to...
I agree with David, I also order the same magnets for the same purpose and I think it is one af the best services I received in yaers of buyer activity. ...
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2537805797&category=4660 This guy on ebay is selling Brushless hard drive motors. $1.25 each if anyones...
Hi I have updated my homepage with new LRK and boat pic. and some more information about my planes. Look at: http://users.cybercity.dk/~ccc16084/ Soren...
I had one that looks "exactly" the same. Found it to be near impossible to take apart. These might be different though. Regards, Franck ... From: UltraJim To:...
Mh,mh, Nice, but the drives I like to take apart myself. I have done maybe 500 or more diferent kind of drives. Lot of screws, shafts, sensors, alu parts, ball...
Hi all, ... Notably for this group, Soren is a mass LRK and Speedy-BL ESC builder: http://users.cybercity.dk/~ccc16084/LRK.htm Met vriendelijke groet ;-) Ron...
I've disassembled and rewired an older CD/ROM motor (9 pole stator) and I was thinking of replacing the ring magnet with George's N38 or N45 square magnets....
Hi Alan, In case of CD-ROM Magnets they shouldt be magnetized through the thickness that means north is on one flat side, south on the other. N45 are stronger...
Hi Soren and all, I noticed you wind all teeth: http://users.cybercity.dk/~ccc16084/LRK.htm Do you wind the two neighbouring teeth, i.e. 1:2:1 or one ...
Hi I wind all tooth 1:1 - or more correct 1/2:1/2 I use the normal method for calculation the total number of windings. I wind the half number of windings on...
Soren, have you tried both the sps and the "all winded" technique for motor with same dimension and same number of windings? And so did you have some number...
2566
Dirk J. De Lange
deld@...
Aug 8, 2003 8:36 am
unsubscribe Dirk De Lange 0825519832 ... From: Massimo Ferraresso [mailto:max.ferra@...] Sent: 07 August 2003 09:27 To: lrk-torquemax@yahoogroups.com ...
