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Remote mower build electric start NEED HELP PLEASE

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New ( offline )
Posts: 9
Posted: 2013-02-11 22:36 
Hi all,

This is a great forum and I am glad I found it!
I am working on a 4wd remote control mower build. Here is what I have:
20 hp electric start briggs gas engine
DX5E controller
2 battle switches
sabertooth 2x60 motor controller
2 x wheel chair motors

This is the second remote mower project, the first one turned out great but it did not have electric start or electric deck adjustment. I need help figuring out how to wire the starter to start the gas engine via the remote. I also need help wiring an electric screw jack to be able to adjust the deck height up and down via the remote control. Any help would be GREATLY appreciated.


New ( offline )
Posts: 9
Posted: 2013-02-12 09:09 
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Admin ( offline )
Posts: 1060
Posted: 2013-02-12 09:39 
For automatic adjustment of the deck height, consider using a 4-bar mechanism and linear actuator with position feedback.

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New ( offline )
Posts: 9
Posted: 2013-02-12 09:53 
[quote]

We hap planned on using a 4 bar mechanism and electric screw jack, such as that found on a little rascal scooter to adjust seat height. We were going to mount it horizontal so that when it screws out it lowers the deck and when it screws in it raises the deck. My main concern is wiring that and the electric start?

Thanks

Mark


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Admin ( offline )
Posts: 1060
Posted: 2013-02-12 09:54 
You don't need an electric start if your entire system is electric. You control the DC linear actuator via a motor controller which is connected to the battery and the R/C receiver. Perhaps I misunderstood?

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Coleman Benson

RobotShop inc.
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New ( offline )
Posts: 9
Posted: 2013-02-12 10:54 
[quote]

The gas briggs engine was originally an electric start engine that started off of turning a key switch on the mower. We need to delete the key switch and be able to start and turn off the gas engine via the DX5E controller. I was told that I could add a starter solenoid and wire a battle switch to the solenoid to start the engine, but what I am worried about is that the battle switch is a 10 amp switch. I was also told I could use the second battle switch to shut the motor down by wiring it to the original kill switch?
As far as the electric screw jack its my understanding that I can use a double pole double throw relay to be able to adjust deck height? Am I on the right track?


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Admin ( offline )
Posts: 1060
Posted: 2013-02-12 11:10 
Quote:
what I am worried about is that the battle switch is a 10 amp switch


If the solenoid you choose consumes more than 10A on startup, you should be worried, and choose a more powerful relay.

Quote:
I can use a double pole double throw relay to be able to adjust deck height?


That gives you control over speed, but not position, so you won't actually have a good idea of the deck height without looking at it.

Quote:
... wiring it to the original kill switch?


You can certainly do that. Might also want a manual fail-safe too.

_________________
Coleman Benson

RobotShop inc.
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www.robotshop.com

Lynxmotion
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http://www.Lynxmotion.com


New ( offline )
Posts: 9
Posted: 2013-02-16 11:59 
Video of it in action




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Admin ( offline )
Posts: 1060
Posted: 2013-02-18 09:37 
Video does not seem to load.

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Coleman Benson

RobotShop inc.
Putting Robotics at your service!™
www.robotshop.com

Lynxmotion
Imagine it. Build it. Control it.™
http://www.Lynxmotion.com


New ( offline )
Posts: 9
Posted: 2013-03-05 11:09 
Another attempt at posting a video



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Admin ( offline )
Posts: 1060
Posted: 2013-03-05 13:26 
Video works well. You certainly have some inclines there. Looking forward to seeing it mow!

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Coleman Benson

RobotShop inc.
Putting Robotics at your service!™
www.robotshop.com

Lynxmotion
Imagine it. Build it. Control it.™
http://www.Lynxmotion.com


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Admin ( offline )
Posts: 1060
Posted: 2013-04-04 15:36 
Wow. Very cool and scary! It's missing a sign "Come closer... I want to play!"

_________________
Coleman Benson

RobotShop inc.
Putting Robotics at your service!™
www.robotshop.com

Lynxmotion
Imagine it. Build it. Control it.™
http://www.Lynxmotion.com


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Admin ( offline )
Posts: 1060
Posted: 2013-04-30 08:06 
Very impressive to be able to climb a ~35 degree dirt slope.

_________________
Coleman Benson

RobotShop inc.
Putting Robotics at your service!™
www.robotshop.com

Lynxmotion
Imagine it. Build it. Control it.™
http://www.Lynxmotion.com


 

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