The Association of Model Submariners.

Would you like to react to this message? Create an account in a few clicks or log in to continue.

* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join send an email with your name , address and phone number to amstreasure@googlemail.com


For a guide to past events see the "Shows and Events" section.

....

Sub Weekend, Sheringham, North Norfolk, Sat/Sun 30,31 July 2022

Bournville Dive-In, Birmingham, Sunday 4th Sept 2022

Who is online?

In total there are 12 users online :: 0 Registered, 0 Hidden and 12 Guests

None


Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Latest topics

» My collection of fibreglass moulds.
How to choose a speed controller EmptyYesterday at 3:35 pm by david f

»  Submarine weekend, Sheringham, Norfolk,30th and 31st of July 2022
How to choose a speed controller EmptyYesterday at 3:22 pm by david f

» WW2 mini sub build
How to choose a speed controller EmptySun May 22, 2022 10:43 pm by SimonH

» Papplewick Pumping Station 2022
How to choose a speed controller EmptySat May 21, 2022 9:39 am by david f

» Akula 1/144 scratch build
How to choose a speed controller EmptyThu May 19, 2022 7:51 am by redboat219

» Darnell U class wanted
How to choose a speed controller EmptySat May 14, 2022 8:19 am by david f

» New modeller looking for U-Class to build
How to choose a speed controller EmptyFri May 13, 2022 3:35 pm by Paul Reilly

» K class plans
How to choose a speed controller EmptyFri May 13, 2022 10:18 am by david f

» Radio ideas -27Mhz
How to choose a speed controller EmptyWed May 11, 2022 12:29 pm by david f

Statistics

Our users have posted a total of 11692 messages in 1923 subjects

We have 952 registered users

The newest registered user is Confused

2 posters

    How to choose a speed controller

    avatar
    Manuel Garcia
    Guest


    Posts : 2
    Join date : 2015-07-22

    How to choose a speed controller Empty How to choose a speed controller

    Post  Manuel Garcia Sat Jul 25, 2015 9:47 pm

    I am new to rc submarines and I am building a typhoon class Russian submarine from scratch. I have two dc motors from a printer and I don't know what speed controller should I use. Each one consumes 700 ma ( with no charge) and 2,5 amp under pressure. I am going to use a 11,1 V lithium battery, so should I use a foward-reverse 6 amp speed controller? And where can I get one ? Thank you
    david f
    david f
    AMS Treasurer


    Posts : 2251
    Join date : 2010-11-10
    Age : 71
    Location : Cumbria

    How to choose a speed controller Empty Re: How to choose a speed controller

    Post  david f Sat Aug 01, 2015 10:34 am

    Hi Manuel,

    The 2.5 amp (stall?) current is a good guide for selection but multiply it by a few times. (Hold the shaft and measure the maximum current.)

    So 10 amp ESCs or so would be OK.

    And yes, one per motor.) and a channel each will give you the most control. (You may be able to do static turns but this can be hard with subs - props too close together.)

    Microgyro and Mtronik are both good suppliers which I have used.

    David

    (Try searching using the term ESC on this forum for more info.)
    avatar
    Manuel Garcia
    Guest


    Posts : 2
    Join date : 2015-07-22

    How to choose a speed controller Empty Re: How to choose a speed controller

    Post  Manuel Garcia Sun Aug 16, 2015 1:15 pm

    Thanks for your answer, David ;
    And yes, 2.5 amp was measured in stall.
    I have purchased a viper marine micro 10 from mtronics and I thought that the easiest way to turn was with a ruder, using the same speed controller for the two motors, putting a fuse for more safety, as I saw in other models.

      Current date/time is Sat May 28, 2022 5:35 am