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
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How to choose a speed controller
david f- AMS Treasurer
- Posts : 2395
Join date : 2010-11-10
Age : 73
Location : Cumbria
- Post n°2
Re: How to choose a speed controller
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.)
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.)
Manuel Garcia- Guest
- Posts : 2
Join date : 2015-07-22
- Post n°3
Re: How to choose a speed controller
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.
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.
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