Bang bang servo board

[mattsdragons]

Anyone got a good image or guide for making one? Need it for my heavy but I figured its probably no different

[harry hills]

Re: Bang bang servo board

thought you had 4qds?
for a hw its a really bad idea, hell for fw its a bad idea

[Anttazz]

Re: Bang bang servo board

Look at my build diary, I just posted photos of Rovers bang bang system.

[RogueTwoRobots]

Re: Bang bang servo board

You need to scale it up for heavyweights, so instead of a servo moving a switch, you have a servo moving a switch, which turns on a relay (which might turn on a bigger relay - not too sure on the HW logistics) and you'll need two relays per side. There is probably a diagram kicking about on the net/forum somewhere but, to be honest, I can't be arsed searching for it.

[mattsdragons]

Re: Bang bang servo board

I'll have a look but as my HW will only be about 9mph, I might use it so I can go for 36v and have higher gearing

[Anttazz]

Re: Bang bang servo board

Just meant that the basic concept is on my build thread, quite complicated to look at without properly following the wires and having a think about why it works the way it does. Connecting up a suitable relay to the version being used in Rover I assumed you would be able to handle on your own

[psycho_fling]

Re: Bang bang servo board

Just to let you know BOW now uses a bang bang system, enough said

[PJ-27]

Re: Bang bang servo board

It's known as the MAG (Maryland Attack Group) control system (I believe) someone posted it in the old Bitza thread, or you could Google it.

The basic change is instead of using the microswitches to turn the motors on and off you use the micro switches to turn beefy relays on and off which in turn connect to the motors.

[woody]

Re: Bang bang servo board

http://www.rctankcombat.com/articles/speed-control/

[PJ-27]

Re: Bang bang servo board

That's the one, cheers Woody.