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Author Topic: radar drive motor  (Read 5650 times)

Eddy Matthews

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radar drive motor
« on: April 28, 2006, 06:41:22 PM »

Does anyone know of a really small motor suitable for a radar drive?

Ideally I'd like something no longer than 1/2" - But is there something that small available?

Regards
Eddy
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Shipmate60

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Re: radar drive motor
« Reply #1 on: April 28, 2006, 07:47:58 PM »

Yes, there are some small Swiss geared motors in some of the shows, they rotate at 60 rpm on 3 volts.
They are about an inch long and about a third of an inch diameter.
Also doesnt Alistaire at  model Motors Direct have some motors suitable for radars?

Bob
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jumpin_jack

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Re: radar drive motor
« Reply #2 on: April 28, 2006, 08:15:31 PM »

Hi Eddy,
   I use a solar motor drive unit  (item code no 570-454) from squires in Bognor, its the best ?3.95 ive spent in a long time.
especially as the same product from other traders will set you back a tenner, just because they call it a radar motor. ;D
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Fast Electricals

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Re: radar drive motor
« Reply #3 on: April 28, 2006, 10:40:25 PM »

You could always strip out the motor from an old servo. I suggest that you keep the original servo gearbox and cut off the small tab that prevents full rotation of the arm.

Neil

Eddy Matthews

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Re: radar drive motor
« Reply #4 on: April 28, 2006, 10:56:51 PM »

I appreciate the replies guys, thanks.

But a servo motor is too big, as is a Buehler motor or anything that Alistair lists at Model Motors Direct :-(

What are the dimensions on the solar motor you mentioned Jumpin Jack?

Sorry, but I'm really stuck for space to fit this, hence my original message stated 1/2" maximum length - Diameter isn't such a problem, I could probly get away with 1.5" dia, but length is critical...

Regards
Eddy
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HS93 (RIP)

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Re: radar drive motor
« Reply #5 on: April 28, 2006, 10:57:26 PM »

Try ? ? http://www.fastcomponents.co.uk/product_info.php?products_id=56&osCsid=ec911a9155d889c0b93d66bbf7fba4af

they are very small 33rpm Miniature Geared DC Motor and work on 1.5v ? Peter
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Cargo

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Re: radar drive motor
« Reply #6 on: April 28, 2006, 11:46:09 PM »

i have found these small ones, Faulhaber Micro-Motor:

15 ? x 12 mm
 3 Volt / 324:1 / 32 Upm

But the price is hot: 44,00 EUR

http://www.faulhaber-group.com/

For example: http://www.faulhaber-group.com/uploadpk/e_1506SR_FTB.pdf

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malcolmfrary

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Re: radar drive motor
« Reply #7 on: April 29, 2006, 10:17:22 PM »

I recently bought a micro serv for under ?7.00.  Removing the electronics and the stop tab on the output gear should give a small, light motor and gearbox capable of rotating a radar at a reasonable speed.  Or, if you can use a spare channel to control it, just disable the drive to the position sensing pot when you take the stop off the output gear.
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Jankers

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Re: radar drive motor
« Reply #8 on: May 26, 2006, 11:12:50 PM »

Only just read this but if you're srill stuck you could try

http://www.distel.co.uk/asps/details1.asp?ID=KV70

Not done any business with them, just saw the site.

J.
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Guy Bagley

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Re: radar drive motor
« Reply #9 on: June 07, 2006, 09:42:25 AM »

Does anyone know of a really small motor suitable for a radar drive?

Ideally I'd like something no longer than 1/2" - But is there something that small available?

Regards
Eddy

 i use a tiny electric motor and gearbox that i took out of a LEGO kit,  its red in colour and  15mm x 15mmx 15mm - basically a cube......sadly i dont have any more, but worth a look on say ebay....its happy operating on anything from 3.6volt to  12 volt- the gear ratio is so low geared the increased voltage does not seem increase the output speed  !
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JayDee

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Re: radar drive motor
« Reply #10 on: June 07, 2006, 09:58:04 AM »

Hello,
In a Mobile Phone, that vibrates to let you know a message has arrived, is the smallest motor I have ever seen!!.
About 1/4 inch dia, less than 1/2 inch long.
The motor shaft had a offset weight on it to make the unit shake while running.
They were on sale at a Computer Fair, but dont know which one !.
Check out the phone folk!.
John.
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andywright

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Re: radar drive motor
« Reply #11 on: October 01, 2006, 07:21:05 PM »

Action Electronics do  aneat motor and gearbox for about a tenner. It will run off 6v 0r 12v depending which resistor is fitted, full instructions included.
http://www.actionkit.co.uk/
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