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4x4 RC lawnmover - please help for components

Old 03-21-2020, 03:07 PM
  #1  
buconova
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Default 4x4 RC lawnmover - please help for components

Hello

I'm advertising from Slovenia. Yes, we also have COVID-19, so we're all in the same boat

Well, at the beginning, I'm not fluent in English either, so I'm using Google

I don't understand anything about RC either, so I also write and ask for some help.

I would like to make a remote controlled lawnmower - RC

To begin with, what I already have:

Gasoline garden lawn mower
Battery power
4 brushless motors / wheels from hoverboards
Remote Control - Turnigy TGY-i6 Mode 2 AFHDS Transmitter and 6CH Receiver

What I don't have:

I need my electronics, speed controller, ESC or whatever it is called. In short - the controller

And here is the first question and I ask for help which controller to buy. Probably more of them.

The motors are 350W - 36V

The controller must have a hall sensor input

According to your expertise, which one do you advise?

However, I would like to avoid the motherboard of the hoverboard itself, because of the flash of the firmware and all that it pulls along, so I'd rather go for what seems simpler to the individual controllers.

Once I have that, I'll still ask you for help with the whole connection and setting up the remote control. The remote control has a v-tail function which I think I will use with the project.

That will be a start, when we reconcile and procure it, we will move on

Thanks for the help.
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Old 03-21-2020, 09:50 PM
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Panther
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Not sure anyone on here would have the expertise you are looking for with a project like that. It is beyond most of us. (my thoughts)
I do have a buddy who was hoping to try that and fit a Pixhawk to guide it but he has since become too busy with his businesses.
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Old 03-22-2020, 06:13 AM
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buconova
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For an easier idea of what I want ...
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Old 03-22-2020, 08:39 PM
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ron_van_sommeren
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This forum deals with propellors.

But a wheel-load is different from a propellor-load, especially at startup: high-torque ('=' high-current) and difficult (sensorless) rotor position detection versus low-torque ('=' low-current) and rotor position more easy to determine.

The forum at e.g. www.endless-sphere.com deals with electric traction (bicycles, scooters, motorbikes, scooters, ...)

Last edited by ron_van_sommeren; 03-22-2020 at 09:25 PM.
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Old 03-22-2020, 08:54 PM
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buconova
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Thank you. I will try my luck on the suggested forum
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Old 03-22-2020, 09:27 PM
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ron_van_sommeren
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Originally Posted by ron_van_sommeren View Post
... high-torque ('=' high-current) ...
... low-torque ('=' low-current) ...
... because torque and current are proportional:
torque = current × Kv
And conversely:
current = torque / Kv
Both calculations must be in SI units!: newtonmeter per ampère and radians per second per volt, 2π rad = 360°.
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Old 03-22-2020, 09:54 PM
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buconova
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Dude, thanks for the hard. But I will say who ... why would I now seek your help and discover "warm water" if the ancestors have already done all this.

In other words ..., I give you another link, easy to connect two hoverboards into one whole, most likely with an arduino nano and an RF board and it is. It just has to be tied together, according to the scheme or mind and it is.

Here, another link, see? Imagine this wooden board holding a hoverboard together to be my lunchbox, it's all art. We don't need any hot water here. Strength, if it turns out to be too low to rush something, we will later upgrade with stronger components.


If I knew the powers, I probably would have got them el so that the machine was already made, but the terror is something else.

Mostly, thank you
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