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Nice Robot Arm on Ebay — Parallax Forums

Nice Robot Arm on Ebay

ercoerco Posts: 20,256
edited 2011-08-23 18:21 in Robotics
http://www.ebay.com/itm/CNC-ROBOT-LAB-VOLT-5100-CO-ROBOTIC-ARM-CONTROLLER-/360386891549?pt=BI_Robotics&hash=item53e8bb8f1d

Arm & controller look good, wish I had the room!

No bids yet, currently ~$560 shipped. Quite a deal if it works!

Comments

  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2011-08-18 17:35
    Ah, the days of the "big iron" robot arms. Scorbot, Lab Volt, Armdroid, Marcraft. PITA if there's a broken part because you probably have to buy two more just for the spares!

    These two statements from the listing have me burning up:

    APPEARS NOT TO EVER BEEN USED
    RELEASED FROM LOCAL ISD VOCATIONAL SCHOOL

    That is SO WRONG on so many levels. And sad.

    -- Gordon
  • charleyshfcharleyshf Posts: 165
    edited 2011-08-18 17:49
    I was just looking at that auction, I noticed also that the seller's feedback isn't so hot either.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2011-08-18 18:17
    Do you guys think this thing could pick of a full (of water) quart canning bottle?

    I use quart canning bottles in my lab. It would be great to have robot arm capable of lifting a full (and empty) bottle on to a balance and then replacing the bottle in its original position after the weight is recorded.

    I figure I'd probably need to modify the claw and maybe add a force sensor inside the claw so it wouldn't break the bottles (if it's strong enough).

    It looks like it uses plastic gears but the motors look adequate for my needs.

    Any thoughts?

    Duane
  • ercoerco Posts: 20,256
    edited 2011-08-18 20:03
    Heck yeah. Those are DRIVE BELTS and toothed nylon pulleys. Should pick up much more than a quart.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2011-08-18 20:12
    erco wrote: »
    Heck yeah. Those are DRIVE BELTS and toothed nylon pulleys. Should pick up much more than a quart.

    I think I'll probably bid on this one.

    Thanks for the heads up.

    Duane
  • ercoerco Posts: 20,256
    edited 2011-08-18 23:05
    Man, it looks clean and those gears do look unused. Hope you get it and it works.

    Must... resist... bidding... myself... :)
  • HumanoidoHumanoido Posts: 5,770
    edited 2011-08-19 01:17
    You can find this robot arm on other web sites but I didn't see any hard data or any info on torque and repeatability. Duane, it appears good to pick up weight capable liquid bottles and do pouring. Let us know if you win the bid!

    Because it has belts and if the gears are nylon, one would probably not want to do continuous fine resolution commercial reposition assembly. For that commercial work, typical designs use a ball screw assembly and more direct transmission.

    I favor robot arms having worked a number of years on designing and manufacturing a robot arm product for industrial precision applications in manufacturing where continuous use and fine repeatability was involved along with chemical dispensing. I'm currently working on a robot arm for defense and security applications on this project. http://forums.parallax.com/showthread.php?124495-Fill-the-Big-Brain
  • m10m10 Posts: 11
    edited 2011-08-19 21:11
    Wow. Interesting buy. It seems a bit spendy though, perhaps.
  • ercoerco Posts: 20,256
    edited 2011-08-21 16:44
    2 bids, an hour to go. Anybody here? :)
  • Martin_HMartin_H Posts: 4,051
    edited 2011-08-21 19:33
    The winning bid was $680 including shipping. If it works the robot is quite a find.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2011-08-23 18:21
    I was the first bidder but I didn't win it.

    Duane
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