i am looking for a flat motor in order to realize a POV lcd - Page 1
Forum section: electronics / general

author: legacy
author_rank: Super Contributor
timestamp: December 10, 2013, 06:07:41 pm
content: I am trying to build a Spinning aka POV (Persistence Of Vision) DisplayQuotethat should look like thisIn order to do that (hopefully with a better mechanical stuff) i need a good motor able to rotate the led-array, and more specifically i need a flat motor able to rotate at 1400 rpm at least.mechanically i think i need something like thisCAPSTAN MOTOR PU-60201Vunfortunately there is no electronic onboard and i am not able to find its documentation1) wandering if this kind of motor could be driven by a common hobby-ESC2) wandering if there are better solutions aroundwhat do you think ?

author: legacy
author_rank: Super Contributor
timestamp: December 10, 2013, 06:10:37 pm
content: it may be i am thinking about an other arduino or such a MPU-addictedproject(arduino Atmega328 project inside)

author: trackman44
author_rank: Regular Contributor
timestamp: December 10, 2013, 06:21:40 pm
content: Since it's a capstan motor from a JVC VCR, Google "JVC VCR repair" or "JVC VCR schematics". Worth a try.Will

author: SeanB
author_rank: Super Contributor
timestamp: December 10, 2013, 06:40:48 pm
content: Old floppy drive will have a motor and board as the drive motor. Single board that generally has a 4 wire connection to the main board. One is either 5v or 12V, one is ground and the third is an enable with the fourth being a tacho signal to the main board. Flat, very simple and cheap to get and will likely have the signals marked on the board. Take the whole plate out ( often it is a single plate held in by 3 screws) and there you have a nice motor. 5 1/4 in drives are generally best as they have a more powerful motor to turn the disk in the sleeve, but most of the 3 1/2 in drives have it on a single plate while the 5 1/4 tend to have a chassis with the motor on it. You might have to do some trimming or make a cover for the whole chassis to cover it.

author: mariush
author_rank: Super Contributor
timestamp: December 10, 2013, 07:18:29 pm
content: Consider using a regular 120-140 mm computer fan. The better quality ones have enough torque to spin that pcb with no problems.If you're careful you can cut away some of the plastic and still have a good base for the motor.. and you also have a nice way to adjust speed using either direct voltage or a pwm pulse.

author: legacy
author_rank: Super Contributor
timestamp: December 10, 2013, 11:08:04 pm
content: hereit is an other example of POV

author: legacy
author_rank: Super Contributor
timestamp: December 11, 2013, 12:30:21 am
content: that's incredible (you tube video) !

author: legacy
author_rank: Super Contributor
timestamp: December 11, 2013, 12:41:45 am
content: that's also interesting, "flying-volt-meter" made with a VCR motor.

author: nctnico
author_rank: Super Contributor
timestamp: December 11, 2013, 02:59:24 pm
content: How about using the motor from a hard drive? Those are very flat as well.

author: legacy
author_rank: Super Contributor
timestamp: December 11, 2013, 03:09:00 pm
content: yeah, it may be cool, just wandering if i can control a modern hard drive's motor with an ESC.

author: cwalex
author_rank: Frequent Contributor
timestamp: December 12, 2013, 12:09:03 pm
content: Quote from: legacy on December 11, 2013, 03:09:00 pmLots of good info here:https://www.eevblog.com/forum/beginners/what-to-do-with-a-hdd-motor/thanks to free electron and others.

author: legacy
author_rank: Super Contributor
timestamp: December 12, 2013, 11:29:05 pm
content: andhereit is more informations about BLDC and ESC

author: legacy
author_rank: Super Contributor
timestamp: December 24, 2013, 01:06:40 pm
content: i did a bit of experiments, good result with miniBLDC and BLDC i got form 2.5" and 3.5" hard drive.In order to control them i used a 20A ESC with home made pwm generator =P

author: legacy
author_rank: Super Contributor
timestamp: December 24, 2013, 03:48:33 pm
content: this is a mini BLDC i got from a 2.5" hard disk, i reversed it as 3 phases + a common signal, and it is working with a 20A ESC