super tiny brushless motor

ive just found an outrunner brushless motor with an outside diameter of 1.9 cm !!
it came from a laptop floppy disk drive [img]/ubbthreads/images/graemlins/crazy.gif[/img]

i will weigh it with the backplate and try and get some photos this evening. its probably lighter than an IPS, might make a good brushless tail rotor system! [img]/ubbthreads/images/graemlins/shocked.gif[/img]

ok just weighed it on some scales

apparantley its 9 grams with the pcb mounting board! [img]/ubbthreads/images/graemlins/laugh.gif[/img]

That's pretty darn small!!!! [img]/ubbthreads/images/graemlins/ooo.gif[/img] I hope you've got small hands if you're thinking of rewinding and remagneting it! [img]/ubbthreads/images/graemlins/blush.gif[/img]

I always thought floppy disk motors were huge! Oh well! [img]/ubbthreads/images/graemlins/smile.gif[/img] Get those pics uploaded ASAP! [img]/ubbthreads/images/graemlins/smile.gif[/img]

yeah this is from a portable floppy disk. the motor spun a big drum on a belt drive. the only reason i found it at all was because i saw the belt that it was driving. just gotta wait for dad to get back with his cam [img]/ubbthreads/images/graemlins/grin.gif[/img]

I hope it wasn't your Dad's laptop that floppy drive came from! [img]/ubbthreads/images/graemlins/blush.gif[/img]

here it is [img]/ubbthreads/images/graemlins/smirk.gif[/img]

[MikeJ]

That is the same motor I converted to use on my fixed pitch. It works great with 19 turns and a 10 tooth pinion. I put ball bearings in it and use a carbon fiber shaft. I used epoxy to glue the 2 mm shaft to the bell. It has loads of power and the magnets that came on it work perfectly.

@ hogster. i meant maybe you could have it to use ON YOUR moth! [img]/ubbthreads/images/graemlins/smirk.gif[/img]
sorry if that came across wrong [img]/ubbthreads/images/graemlins/wink.gif[/img]


Mike J thanks very much for that info! its very encouraging. if i may ask what ESC did you use?

thanks again! [img]/ubbthreads/images/graemlins/grin.gif[/img]

Oh I see! [img]/ubbthreads/images/graemlins/tongue.gif[/img] You could stick it on a plank and use it to clear the air at Farnborough before I try to fly my Moth - that'd be a good use! [img]/ubbthreads/images/graemlins/grin.gif[/img]

indeed [img]/ubbthreads/images/graemlins/tongue.gif[/img] i MAY try that although im ordering a mini AC 20 for my pic ATM [img]/ubbthreads/images/graemlins/laugh.gif[/img] so maybe another time [img]/ubbthreads/images/graemlins/laugh.gif[/img]