Model Boat Mayhem

Mess Deck: General Section => Model Boating => Topic started by: Stan on August 04, 2011, 10:29:25 pm

Title: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: Stan on August 04, 2011, 10:29:25 pm

HI  fellow members can any one recommend a supplier in the uk for very small electric motors. I need this drive a radar scanner will have be direct drive from the motor shaft. Any idea on how to connect the very small shaft of a tiny motor.

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: triumphjon on August 04, 2011, 10:46:53 pm

im using a small swiss motor from fratton model shop ( unbuiltnautilus ) in my boats connected to the shaft with a small peice of rubber tubing

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: sentry on August 04, 2011, 11:26:43 pm

Hi Stan,
 Have you looked at Mobile Marine models small flick motors
                   regards Sentry.

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: DickyD on August 04, 2011, 11:27:29 pm

Small motors for radars, where else, ACTion Electronics.

Dave's a nice man, a really really nice man he will sort you out. (http://i124.photobucket.com/albums/p8/DickyD_photos/indexphp-3.gif)

http://www.action-electronics.co.uk/stuff1.php

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: brianB6 on August 04, 2011, 11:38:48 pm

Cornwall Model boats have them geared down to 1640 :1
More expensive but really slow.
I have used the micro 500:1 for gun elevation and 1000:1 for radars on my "Dorina"  beautifully made.
http://www.cornwallmodelboats.co.uk/acatalog/motors_accessory.html

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: MikeA on August 05, 2011, 12:33:58 am

if your using the 2mm shaft type motors like this:

(http://s3.postimage.org/hxxsrfwk/260_30.jpg) (http://postimage.org/image/hxxsrfwk/)
 the shafts can be joined with a peice wire sheath. if ya take an odinary 240v wire or something with that diameter strip it but dont cut along the length apply it to the shafts with a push fit and it holds fine. ive used this method for prop shafts so itl definately work for a radar.

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: Stan on August 05, 2011, 08:39:44 am

Many thanks for getting back to me with your comments will follow these up this weekend.

Stan :-)) :-)) :-)) :-))

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: Circlip on August 05, 2011, 09:46:48 am

Tried these Stan?  http://www.micronradiocontrol.co.uk/micro_motors.html

  Regards  Ian.

 Or these http://www.dccsupplies.com/shop/product_info.php?cPath=170&products_id=1000

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: morgsy on August 05, 2011, 01:21:19 pm

I have cannibalised a micro servo that works fantasticaly, but it is a little noisy.

Title: Re: VERY SMALL ELECTRIC MOTORS 1.5 VOLTS TO 3 VOLTS
Post by: More Coffee on August 05, 2011, 03:07:45 pm

heres a solution a 3v 30rpm gear head motor

http://www.ebay.ca/itm/3V-30RPM-Torque-Gear-Box-Motor-New-/320681822577?pt=LH_DefaultDomain_0&hash=item4aaa204971


If you look around ..you will find that most radars turn on average 30rpm..on the low side 25rpm..on the highside 40rpm..

Thers a few ways to hook it up ..silicon fuel line ,electrical insulation as mentioned,
If your crafty and have a friend that has a lathe..a simple coupling would take about 10m's to whip out ..with a grub screw..