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Thread: More Mule then Rover?

  1. #211

    Re: More Mule then Rover?

    jwatte, truth is, I'm not ready for snow.

    I'm going to try plan B for the dumping setup.
    I did get the new motor and tested the brake to insure
    it can hold the bucket up.

    heading back to office.

  2. #212

    Re: More Mule then Rover?

    The way I first tested to do it the only way to adjust the chain tension was to
    shim the bucket support arm.
    Click image for larger version. 

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    and the motor brake had to hold all the weight that I put in
    the bucket.

    plan B is to replace the lower chain with an Arm off the dump output shaft,
    if when the bucket is in the up position and the arm is at top dead center
    the dump output shaft should hold must of the weight not the motor brake.

    top dead center should be something like this
    Click image for larger version. 

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  3. #213

    Re: More Mule then Rover?

    baby steps.
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    Click image for larger version. 

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  4. #214

    Re: More Mule then Rover?

    now with limit switches installed, and the plan B arm completed
    the dump setup can be tested(sweet).

    Click image for larger version. 

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    Click image for larger version. 

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  5. #215

    Re: More Mule then Rover?

    plan B for dumping worked out good enough to play with some snow.(kinda fast)

    with the bucket dump all the way up, it's tilted back a small amount(to help keep snow in bucket when lifting)
    I programmed a button on the controller to release the brake on the dump motor to let it tilt to the ground
    by it's own weight, but because I have it at top dead center it does not float down on it's own.(crap)

    Last edited by Tommy_T; 12-25-2018 at 12:47 PM.

  6. #216

    Re: More Mule then Rover?

    From what I've learned from hand-pulled snow scoops, you may want to support up to 20 degrees backwards tilt to keep the scooped snow on the bucket. It's annoying when you try to lift things, but they fall off in front...

    Anyway, I like the speed, it looks powerful and smooth!

  7. #217

    Re: More Mule then Rover?

    I hope mother nature delivers some snow soon, I need to
    test with snow now.

    jwatte, I can only tilt back 10deg with the current bucket support arm.
    and because that arm is the weakest link(1/8" tube steel), replacing it
    would not hurt my feeling.

    I hope to have the cameras on this weekend(back to the office)

  8. #218

    Re: More Mule then Rover?

    After playing with the bucket for a short time it became clear
    the switch idea isn't going to fly, too much time.

    so I added a few more push buttons to the remote controller.
    Click image for larger version. 

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    I like this better because I can lift or dump while the Mule is
    moving. much better.

    I kept the switches on the remote controller because I'm sure
    I'l find a use for them sometime.
    Last edited by Tommy_T; 01-05-2019 at 06:05 PM.

  9. #219

    Re: More Mule then Rover?

    I was wondering if I could tilt the bucket back enough to keep
    the snow in the bucket when lifting.

    Click image for larger version. 

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    Click image for larger version. 

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    but, not ideas are good ideas.
    I was thinking it would be nice to have all systems running off
    one battery bank and needing only one charger, not a good idea..
    if a heavy load is placed on the drives,it drives the battery voltage
    below the cutoff voltage for the 110ac inverter which then drops the
    wifi and cameras.(crap)
    Last edited by Tommy_T; 01-19-2019 at 10:13 AM.

  10. #220

    Re: More Mule then Rover?

    I imagine the WiFi and cameras use wall warts plugged into the 110V inverter?

    I then imagine you could use a wide-input-range buck regulator (or two) to output the appropriate voltage for each of those things, without going up through 110V. You'd just need to wrap it up in some silicone tape or a Bud box with a seal or something to get it out of the weather.
    Tons of cheap buck converters from Pololu or Amazon ...

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