So I got a side project at work from an under sheriff that has 3 wheelchairs he need to be controlled by radio control.
I for sure was up for the challenge and couldn't wait to get started. He plans on using them for movable target practice and also one to strap a paintball gun on for urban scenarios.
I got the wheelchair this week which is below. He got it at a surplus for $75.00 and has a budget of $500. But I'd like to get paid some money for the work too. So working on a budget.
It's missing all the the controls so I took it apart to see what I had to work with.
Its got 2 12V batteries wired in a series. With a 50amp circuit breaker.
1 main power and 1 main ground from the 24V power supply goes to the plug that originally connected to the remote.
Then 1 main ground and 1 main power from each motor, left and right, go to the same plug.
Then 1 small ground and 1 small power from each motor go to the switch, but are connecting each other.
Pics below
I bypassed the switch and applied 12V power to one motor to make sure it moved, and it did, but of course super slow.
So I'm stumped one a few things.
First, what are the small wired from each motor (ground, and power) doing? Whats the purpose? Is this to ensure each motor has the same power so its not going left or right when hitting different obstacles?
Secound.. How to rc?
My initial thought was to do similar to the old school home made digs, where a servo turns and closes and opens a circuit to allow power on and off.
My two concerns with this r, 1. Will it hold up to the abuse it may see. I'd hate to see it catch fire.
2, how would you kill power to one when wanting to turn?
I for sure was up for the challenge and couldn't wait to get started. He plans on using them for movable target practice and also one to strap a paintball gun on for urban scenarios.
I got the wheelchair this week which is below. He got it at a surplus for $75.00 and has a budget of $500. But I'd like to get paid some money for the work too. So working on a budget.
It's missing all the the controls so I took it apart to see what I had to work with.
Its got 2 12V batteries wired in a series. With a 50amp circuit breaker.
1 main power and 1 main ground from the 24V power supply goes to the plug that originally connected to the remote.
Then 1 main ground and 1 main power from each motor, left and right, go to the same plug.
Then 1 small ground and 1 small power from each motor go to the switch, but are connecting each other.
Pics below
I bypassed the switch and applied 12V power to one motor to make sure it moved, and it did, but of course super slow.
So I'm stumped one a few things.
First, what are the small wired from each motor (ground, and power) doing? Whats the purpose? Is this to ensure each motor has the same power so its not going left or right when hitting different obstacles?
Secound.. How to rc?
My initial thought was to do similar to the old school home made digs, where a servo turns and closes and opens a circuit to allow power on and off.
My two concerns with this r, 1. Will it hold up to the abuse it may see. I'd hate to see it catch fire.
2, how would you kill power to one when wanting to turn?
