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    Project Re: More Mule then Rover?

    jwatte, that is correct.

    7438

    I got a few of these last year for that purpose, but the 110vac inverter was just too
    easy to implement (plug & play). I guess easy isn't always best(or...
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    Project 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.

    7436

    7437

    but, not ideas are good ideas.
    I was thinking it would be nice to have all...
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    Project 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.
    7433

    I like this...
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    Project 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"...
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    Project 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...
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    Project Re: More Mule then Rover?

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

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    7432
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    Project Re: More Mule then Rover?

    baby steps.
    7429

    7430
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    Project 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.
    7427

    and the motor brake had to hold all the weight that I put in
    the bucket.
    ...
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    Project 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...
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    Project Re: More Mule then Rover?

    https://www.youtube.com/watch?v=_qXii29on2g
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    Project Re: More Mule then Rover?

    I was able to test the dumping drive setup.
    the speed is manageable but, even with a 1" shaft because of
    the amount it's unsupported on each end it acts like a leaf spring(crap).

    7425
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    Project Re: More Mule then Rover?

    to set the height of the blade I had these welded on($25.00 sweet!)
    for small casters and a orange plow marker flag(should show up on camera).

    7424

    I'm going to one more shaft, 12 teeth and 45...
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    Project Re: More Mule then Rover?

    hope to test the dumping setup this week(waiting on motor with brake)

    7419
    7420
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    7422
    7423
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    Project Re: More Mule then Rover?

    Not sure about the plan A for dumping.

    the gear motor I plan to use has a 180rpm output, and the sprocket on the buckets
    only turns 90deg. to make it at least reasonable if things go sideways, I...
  15. Replies
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    Project Re: More Mule then Rover?

    with all the effort & costs that went into making the lifting frame, I'm going
    to install a second prox switch on each end of travel, that shuts down drive
    and turns on the brake.

    or the...
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    Project Re: More Mule then Rover?

    smooth!


    https://youtu.be/ngi4qHbGw-M
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    Project Re: More Mule then Rover?

    jwatte, nothing gives that warm&fuzzy feeling like good visibility.

    While I couldn't use the ballscrews I have available for the lifting of the bucket(too slow, small pitch)
    they may work out...
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    Project Re: More Mule then Rover?

    baby steps.

    got the prox switches for the lift installed.

    7415

    also moved the bucket out 2" to give me room to mount the dump
    motor under the bucket support arm(so it doesn't block camera...
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    Project Re: More Mule then Rover?

    the lift works as envisioned, 5 sec. for full lift height, tested lifting 290lb, it lifted
    it with no measurable slow down.(Sweet!) the braking system worked perfect also.

    everything very...
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    Project Re: More Mule then Rover?

    plan A is to use one 1000W motor for lifting and one for dumping.

    plan B is to use two 1000W motors for lifting and one for dumping.

    7410

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    7412
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    Project Re: More Mule then Rover?

    I should have the bucket mounted to the lift soon

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    7407

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    7409
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    Project Re: More Mule then Rover?

    Lucky for me I ordered a manufactured steel bucket(80lb) from Home Depot, if I made it,
    chances are it would weigh 300lb.(like the lifting frame I'm working on)

    there is lots of aluminium in the...
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    Project Re: More Mule then Rover?

    baby steps
    7380

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    7402 7403

    I'm going to test lifting the bucket while still just bolted together, before I take it back
    to the welder. the bucket with dump motor and brackets is...
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    Project Re: More Mule then Rover?

    these passed the 24 hour heat test.
    7376

    they also have a 200A version with the same foot print.
    which I'll most likely use when both sabertooth 2x60's are in use.

    when I made the motor mount...
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    Project Re: More Mule then Rover?

    jwatte, if plan D fails I may just do something like that.

    plan D is to use the same thing I would use to enable a drive on a machine.
    I can get these with 24Vdc coils.
    7375
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    Project Re: More Mule then Rover?

    jwatte, I've never worked or played with a Teensy yet. sounds like a good
    way to spend a winter.(testing Teensy's,Pi's and Edison's)


    I'm also not going to be able the use the cheap plastic...
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    Project Re: More Mule then Rover?

    mother nature must be checking in on this topic, 20 miles south of me got 10" of snow this week.
    she dropped none on me.


    I was thinking of using 2 Arduino Nano's for controlling the mule, but I...
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    Project Re: More Mule then Rover?

    baby steps.

    7372

    7371

    I should have the remote controller done by time the lift is ready.

    when this mod. is complete there should be 3 sabertooth 2x60 speed controllers,
    and I found an...
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    Project Re: More Mule then Rover?

    tician, I agree, something like a RC snubber would add to the warm&fuzzy feeling.
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    Project Re: More Mule then Rover?

    jwatte, very good advice.

    I started using EATON solid state relays 15yrs ago for work, and over the years have found them to be
    very reliable, but not cheap @$36.00 for the 15A units, @$26.00 2A...
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    Project Re: More Mule then Rover?

    tician, my bad. I'm going to be running the load output contacts in series.
    that way if the contacts stick on one of relays the other can still drop the drive voltage
    in case of emergency.

    my...
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    Project Re: More Mule then Rover?

    baby steps.
    which sucks because we got 6" of snow on way.

    7362
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    Project Re: More Mule then Rover?

    two of these in series should give me a warm&fuzzy for a Drive enable relay(s).

    7361

    two of them should draw .400 Amps (coil listed as 60 ohm)
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    Project Re: More Mule then Rover?

    tician, too hot to touch, that was with no load.

    Just relay connected to 24vdc battery over night.
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    Project Re: More Mule then Rover?

    I was thinking of using this SPST 300A 24Vdc relay for the Drive enable relay.
    It was listed as continuous duty, but still gets very hot after prolonged use.
    and it draws .5amps

    7359

    this is...
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    Project Re: More Mule then Rover?

    jwatte, while the 80A relays are cheap, the solid state relays needed for the arduino to control them are not, and
    I don't have a lot of them in my parts bin. because I have the sabertooth already...
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    Project Re: More Mule then Rover?

    I only have a single axis motor drive sitting around(sabertooth 50), and
    I can't see a need to lift and dumping at the same time. so I got
    a 80A DPDT 24vdc relay to switch between motors(lift/dump)...
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    Project Re: More Mule then Rover?

    Jwatte, that's one of the things that makes the 1.5 hour drive(each way) to the office worth
    the drive, the Mill has a conversational control on it(very sweet!), a lathe, surface grinder,
    and Steel...
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    Project Re: More Mule then Rover?

    baby steps.

    7354

    7355
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    Project Re: More Mule then Rover?

    Baby steps.
    7350

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    7352

    7353
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