Mower / Actuator / Emergency Stop

Help & Support Robot Parts
1

Hi folks!

I am working on my lawn mower project and I’d like to add some form of Emergency stop style safety to my 150 or so pounds of whirling blades of death machine.

So I’d like to mount an actuator to the main battery connection (anderson connectors) and having that controlled by a seperate remote, I would love to have it controlled by a seperate remote incase of some kind of failure with the main radio system.

For the control I was thinking;

For the actuator I was thinking;

And using this as it’s power source, independant from the main drive motor batteries;

The mower is petrol powered with pull start, I’d love to have a cable run back to the throttle linkage so in the event of me activating the emergency stop via the key fob remote it will also return the throttle to the stop position.

Can anyone see the flaws in my thinking with that set up? I’m a relative newbie to the electronics side of things, the mechanical and build side of things I’ve played with for a while now and I’m totally open to suggestions.

Thanks in advance :slight_smile:

2

@AussieBloke Welcome to the RobotShop Forum. There’s a potential issue - the wireless remote is not a simple toggle: when the button is pressed, the device on the other end will receive constant power one way or reversed with the other button.

Also, it’s not compatible with Firgelli -R type actuators (only two wire -S).

Last, it’s intended to be used with 12V as opposed to 6V actuators. We don’t seem to currently carry the 30mm, 100:1, 12V Limit switch from Firgelli. Other stroke lengths / gear ratios:

There may be more issues to work out, but those are the more evident.

3

Definitely food for thought, thank you so much I really appreciate it!