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fever
02-24-2005, 08:30 PM
hi all
i recently dismattled my old HDD for its head driving motor.i dono what it is,imean servo or some thing else.it looks same as in the below picture(having 4 terminals).now i want to use this motor for my propeller clock(http://www.bobblick.com/techref/projects/propclock/propclock.html)
this motor shld run Continuously when ever power is switched on.so if any one know how to drive it.(a simple powering circuit)
pls help me
thanks
fever
http://terasan.okiraku-pc.net/kousaku/hdd/motor.jpg

some links of propeller clock
http://home.tiscali.be/henkenkatrien/propellerclock/

http://www.bobblick.com/techref/projects/propclock/propclock.html

http://myweb.tiscali.co.uk/crowley/mattweb/propclock/

fever
02-26-2005, 01:37 AM
no replies :cry:

asimov_18
02-26-2005, 10:42 AM
hi friend ,
well have u thrown away the pcb that came with the hard-disk .this is because the motor is not a dc motor that u can attach to a battery and it will start running u need a control circuit for it its actually a type of stepper motor in which the windings r connected in star mode (assuming that it has 4 pins).so u definately need a controller to run it.
asimov_18

fever
02-26-2005, 05:42 PM
no i did't.i have its pcb.i think if we sort some terminal bertween power and data line the motor will run.but i have no idea.how to do.
any one

samrat189
02-27-2005, 04:24 AM
hey i hop this my help u:

http://www.pcguide.com/ref/hdd/op/spin.htm

http://www.pcguide.com/ref/hdd/op/index.htm

http://www.pcguide.com/ref/cd/constSpindle-c.html

asimov_18
02-27-2005, 10:08 PM
hi friend ,
there is one prob to remove the motor u would have removed the platters and the heads .if u connect the motor to the pcb and connect the pcb to 5 &12v power supplies the motor will spin for 10 sec and will stop this is becase th circuits r so designed the if the reading heads dont read any data from the platter they turn off the motor as a preventive measure. instead try making ur own t-bridges with mosfets and micro-conts then this will work or ask some body else as i dont know how else to sole this prob.
asimov_18

ice
02-28-2005, 10:14 AM
if your really need to make a propeller clock,try using a normal DC brushless motor,the ones found in CPUs.

One of the links provided by you uses this kind of motor...
Its much lighter and quieter than a HDD motor.

fever
03-01-2005, 06:12 PM
i agree.but why iam choosing HDD motor is bcz of its compact ness and smooth operation.it runs very smoothly.and can get 2500-3000 r.p.m easily.and fixing of the propeller board on HDD motor is very easy.

Weazuul
03-05-2005, 10:11 PM
what you have there is a brushless motor
you will need a brushless dc controller to make it work
you will find schematics here and software here:
http://home.versanet.de/~b-konze/index_en.html
http://rcgroups.com/forums/ on the DYI section

You might also wanna look at this:
http://www.gobrushless.com/GBL_single_v2.pdf
for bether torque(Wye) or speed(Delta)

have fun

fever
03-10-2005, 04:45 PM
recently i found a new propeller clock schematic.http://hot-streamer.com/hilo90mhz/electronics/prop_clock.htm.in this he is providing built in pulser circuit to drive disk driver motors.have a lookhttp://hot-streamer.com/hilo90mhz/electronics/prop_clock/schematic2.gif
can we seperate this circuit from rest to drive HDD motor.is it possible.if yes pls give a modified schematic
thanks