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[J.beazley]

i need help on how to wire up a boat im playing with, ive got twin motors running 9.6v the trouble is i need :

both motors to run forward together,
both motors to run backwards together and
one motor to run forwards and the other to run backwards for turning.

the forwards and backwards is easy to figure out but what do i need to make each motor run alternatly so to speak???

any help would be good cheers
Jay

[Youngat65]

I have my twin prop models set up on mixers does exactly what you have discribed you want to do, quite a few radio sets now have on board mixers such as the Hitec Eclipse whuch is what I use hope this helps
                            Cheers
                                 Bob B

[J.beazley]

im guessing the mixer's go somewhere in between the reciever and the speed controller?

im probably being thick but the more help the more i learn 

[Youngat65]

The mixers on the set I use are built into the tranny

[J.beazley]

looking in my ripmax catalogue ive found a 2 channel mixer would this be any good ?

[CAD2]

Try this link

http://www.modelboatmayhem.co.uk/Common/Electrics/Twin_motors.htm

Both ASTEC and ACTion make suitable mixers for model boats. Beware of mixers intended for aircraft (e.g. for Vee tails or "flapperons"); they can work against you in reverse.
CAD2

[Peterm]

I have an Aqua Riva which is steered by two motors.   I took the easy way out and used a speed controller (Viper 15) for each motor, each ESC controlled by its own stick on the transmitter.   This system works well.   Pete M

[J.beazley]

cheers for the link CAD2 thats just what im after and theres diagrams aswell which is a big help as i can see where things go.

what would be best 2 or 4 channel as im not going to be using rudders for the moment??

 
cheers
Jay

[flag-d]

Jay, you don't say what type of boat it is, ie fast or slow.  For a faster boat, I'd certainly use rudders as they will enable smooth turns without an excessive loss of speed.  I'd go with Pete on using twin ESC's, one for each motor.  This gives excellent manouverability and fine control, possibly what you're looking for, especially in a slower model.  Mixers work very well, but work on mixing the rudder servo signal with the throttles (at least I think they do...I haven't used them before) so you'll need a rudder channel anyway.  I'd be tempted to go straight for the 4 ch set, but then I'm just greedy!

Hope you get it sorted out OK, whatever you choose.

Mike

[J.beazley]

im upgrading my Severn again as ive fried the electrics (used to thin a wire me thinks), its only the small "toy" version but its in need of the internals apart from motors.

i want to change my c.c.lee victory fast electric from dog drive to hydro drive with surface piercing props thus why i ask about mixers for that, on the other hand everything above is for my Severn.

hope i make sence cause sometimes i dont make sence myself. ::)

[cbr900]

To do what you want just follow the diagram and it will work perfectly and it is as cheap as chips..


Roy

[J.beazley]

cheers for the diagram but what does the writing say ? when i blow the picture up to view it the writing becomes all blury so i cant read it, which doesnt help me figure things out :(

will get there in the end i expect 

[cbr900]

Jay,

Have sent yo an email showing a lot better picture it does work well as I have used it several times in models, and I have not yet encountered a problem..

Roy