Reverse your winch motor

[jmz6]

I had a servo with a burned IC board that didn't want to chuck and I wanted to replace my creeping winch servo so.... The problem was how to reverse the motor polarity so I could use this servo as a winch. DIG setups are big now so it wasn't hard to come up with a variation that would make sense to others.

So after stripping the board from the servo, soldering a set of leads to the servo motor and wiring up a set of micro switches, I now have a setup that will accept other motors as well.
The wiring

Both switches open = Static
One switch depressed = One direction
Other switch depressed = Opposite direction

Using a Hitec HS-56 and a couple small micro switches

Self contained & small enough to fit into a WP box if needed, although the switches and servo can be mounted anyway that works...

 

[dorji]

have you actually tried this?

It wont work, cause there is only one wire going to the motor from each switch.

 

[jmz6]

have you actually tried this?

It wont work, cause there is only one wire going to the motor from each switch.

That's the idea, you don't really want more than one wire going to each pole of the motor and.... Yes it does work, the switches take care of the transfer, that's why they are there.

Follow the diagram
NC = normally closed
NO = normally open
C = common

At static the motor gets + to both poles (could be set up to allow - to both poles also)
Depress either switch and it kills the positive connection on that side and allows the negative to flow. The opposite happens on the other side, it just reverses the polarity. If you hit them both at the same time, both sides of the motor will get neg.

 

[cyberdog]

So what kv/t motor would u say is good to use for a winch motor using ur idea ?

 

[Gula]

I'm about to do something similar, but not using a servo for the winch, basically setting up the 3rd chanel servo to throw between two dig switches one being the motor to the tranny the other to a motor that will run the winch. There won't be freewheel and I wont be able to help the winch by giving the "drive motor" throttle but the winch will consist of a maxx diff, gd600 and a hpi transfer case that should have plenty power to pull a 20+lbs rig

 

[jmz6]

So what kv/t motor would u say is good to use for a winch motor using ur idea ?

Any motor that you could set up as a winch, I used small micro switches because I was using a servo motor, but there are plenty using the bigger micro switches for dig, using 540 size cans.

 

[jmz6]

I'm about to do something similar, but not using a servo for the winch, basically setting up the 3rd chanel servo to throw between two dig switches one being the motor to the tranny the other to a motor that will run the winch. There won't be freewheel and I wont be able to help the winch by giving the "drive motor" throttle but the winch will consist of a maxx diff, gd600 and a hpi transfer case that should have plenty power to pull a 20+lbs rig

Maybe I am not understanding.... Why wouldn't you just use a setup something like this just to control the winch motor and leave the drive motor channel alone? There still is no freewheel but you can reverse the motor to cable out. Sounds like your winch will have plenty of pull though...

 

[Kamikaze]

A modified Tower Pro servo will have enough to dead lift a 20lbs rig, with way less clutter.