Model Boat Mayhem

Mess Deck: General Section => Tugs and Towing => Topic started by: first tug on May 08, 2009, 03:09:28 pm

Title: rotating
Post by: first tug on May 08, 2009, 03:09:28 pm

Need help with rotating radar on my Tug What motor does one use.

Title: Re: rotating
Post by: catengineman on May 08, 2009, 03:19:19 pm

There are several ways to get the radar or even radars revolving.
I myself modify mini servos to run constantly (1.5volts) then if I need two radars I fix drive wheels to shafts and have an elastic band between them.
There are very small motors on sale (I think if you contact 1 Mr FLJ) he may steer you in the right direction for those
Then there has been use of a "toy" disco light thing stripped down for the drive system.

So as you can see the possibilities are almost endless, the big question is where on your vessel do you want the radar because that will influence the type of drive

R.

Title: Re: rotating
Post by: Colin Bishop on May 08, 2009, 03:20:33 pm

There have been a number of recent posts on this subject. Try typing radar scanner into the search box on the Forum home page.

Colin

Title: Re: rotating
Post by: norry on May 08, 2009, 06:21:26 pm

   ...Hi Guys...

There are small geared motors for sale at present on E-Bay...The seller is in Canada...I have bought these & they are very good

Type in Geared Motor & then go to international sellers...You will find them there...

Or for the easy way out....The Drive Part of A Pot Noodle Fork...Although its a bit Big & Noisy...

...Best Regards...Norry...

Title: Re: rotating
Post by: Ghost in the shell on May 10, 2009, 09:10:23 pm

the easiest way is to rip the guts out of an old servo so its just motor and gearset.  hack the stop dog off the large white output cog

Title: Re: rotating
Post by: col426 on May 13, 2009, 02:22:02 am

These blokes have 6mm geared motors with rotational speeds suited to radar speeds: http://www.gizmoszone.com/shopping/storepro5/agora.cgi?product=Gearmotor&user4=612series;ppinc=1b.  They list 40 & 200 RPM motors

Phillip

Title: Re: rotating
Post by: SlimRick on June 20, 2009, 10:57:34 am

I've used a motor from a cd drive tray coupled to a £2.99 gears project kit from Maplin.