One-Servo Robot Challenge

245

Comments

  • WBA ConsultingWBA Consulting Posts: 2,646
    edited January 2015 Vote Up0Vote Down
    erco wrote: »
    So it should be a simple matter for you to build your creation and post the first video...? :)

    No problem, just felt I needed to harass you a bit... As for making one, you don't know how bad I wanted to make it Monday night. For some reason the idea really sparked in my head. Unfortunately, work is in survival mode right now (insanely busy) and my free time is being spent on finalizing the datacomm infrastructure for the new office building at my church. Installed all the gear into the rack to get the full network live last night (hub, power strip, POE injector, Ubiquiti access point, and cables). Tonight I am hoping to clean up the mess that Comcast made with the punchdown block to reroute the VOIP lines and phone system extensions over to the new building. Comcast didn't use any standard method on the block/cables and marked nothing.
    Andrew Williams
    WBA Consulting
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    VOIP, Schmoip. They'll understand. This is SCIENCE, dangit!

    I want to bang one out just to get the ball rolling. Either your wiggle walk idea or a two-legged tail dragger. Eventually both.
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • kwinnkwinn Posts: 7,589
    edited January 2015 Vote Up0Vote Down
    Where's my love Erco?? I posted the exact same idea 2 days ago in post #4.. now, where's that crying emoticon.............

    Sorry Andrew, didn't mean to steal your idea. I did read your post, and it sounded like a pretty complicated mechanism that was intended for a walker. Have to admit that your description of the servo motor action was the inspiration for my suggestion, but my aim was for the simplest possible mechanism that did the job.
    In science there is no authority. There is only experiment.
    Life is unpredictable. Eat dessert first.
  • W9GFOW9GFO Posts: 3,728
    edited January 2015 Vote Up0Vote Down
    Actually I think Phil was the first to mention the ratcheting wheel idea in post #6.
  • WBA ConsultingWBA Consulting Posts: 2,646
    edited January 2015 Vote Up0Vote Down
    kwinn, no problem, I don't think you stole my idea, I was just giving Erco a bad time because he skipped right over my post with his replies. Besides, I can't claim the idea anyhow since like my post says, I don't have the mechanical knowledge to explain my idea properly.

    Erco, yes, please make one if you can. Would love to see one in action.
    Andrew Williams
    WBA Consulting
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    Erco, yes, please make one if you can. Would love to see one in action.

    All I did so far today was this one servo robo-flower. Had to do something with the girls today! That's a dollar servo driving a dollar veggie steamer. Are batteries and servo testers down to a buck yet? :)
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • WhitWhit Posts: 3,706
    edited January 2015 Vote Up0Vote Down
    If the sides of the flower opened opposite of each other (one side open - one side closed or if the open part rotated around the flower) and the steamer was placed upside down on a flat surface - would it crawl? Can the steamer open like that. Just for fun turn it over and see what it does just as is! Strong enough?
    Whit+

    "We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths." - Walt Disney
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    Cool idea, Whitman! I love the way you think.

    This particular dollar store steamer wouldn't last like that. The aluminum is very thin and the hinges are just part of the stamped aluminum. Any load like crawling would bend or break them. It's barely up to this flower app!

    So when you build yours, start with a quality steamer, Pal!
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    I have something on the bench now which looks promising, a passive-legged mashup up of ideas discussed thus far. Should be working by tomorrow, just in case someone is racing me to be first. Working tomorrow doesn't mean finished and figure 8 ready, necessarily. :)

    I'm having lunch next Wednesday with my hero Sir Gordon McComb. In my dream scenario, my bot will figure 8 effortlessly around 2 plates of tasty Peruvian chicken.
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • PublisonPublison Posts: 9,734
    edited January 2015 Vote Up0Vote Down
    erco wrote: »
    I have something on the bench now which looks promising, a passive-legged mashup up of ideas discussed thus far. Should be working by tomorrow, just in case someone is racing me to be first. Working tomorrow doesn't mean finished and figure 8 ready, necessarily. :)

    I'm having lunch next Wednesday with my hero Sir Gordon McComb. In my dream scenario, my bot will figure 8 effortlessly around 2 plates of tasty Peruvian chicken.

    Do give Sir Gordon our regards!
    Infernal Machine
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    Couldn't wait, I slapped a servo tester on just to see the "Turtle" make its first steps today. It's a mashup of the alternating ratchet wheels mentioned by several and the ramp walker Rich mentioned. Very slow movement here will improve when I add a real control circuit. It will be able to turn left & right in addition to the more or less straight shuffle shown here. Plenty of sensor possibilities, too.
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • WhitWhit Posts: 3,706
    edited January 2015 Vote Up0Vote Down
    Fantastic work erco! I love the way the turtle moves.

    I am with Publison - give Gordon a shout out from all of us.
    Whit+

    "We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths." - Walt Disney
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    Whit wrote: »
    I am with Publison - give Gordon a shout out from all of us.

    He'll get a shoutout AND a Parallax hat! Then I'll only have one left for the next forumista to visit me. :)
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    A faster and more maneuverable turtle.

    The turtle can run circles around this poor fellow (see video): http://www.ebay.com/itm/Robot-Dog-Kit-Toy-Car-Educational-DIY-Car-Hobby-Robot-Puzzle-IQ-Gadget-/391009088419
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • mindrobotsmindrobots Posts: 6,488
    edited January 2015 Vote Up0Vote Down
    Well done! He is "quick"!

    The turns are awesome!

    Picaxe?
    MOV OUTA, PEACE <div>Rick </div><div>"I've stopped using programming languages with Garbage Collection, they keep deleting my source code!!"</div>
  • zappmanzappman Posts: 356
    edited January 2015 Vote Up0Vote Down
    Very nice job!
    Looks like 1 servo, 1 IC, 1 Cap, 1 battery, 1 speaker and the mechanical parts???
  • GordonMcCombGordonMcComb Posts: 3,119
    edited January 2015 Vote Up0Vote Down
    erco wrote: »
    A faster and more maneuverable turtle.

    One word: amazing!
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    Thanks for the kind words, lads. Especially high praise from Gordon! This one might become a kit before long as I'm getting into the robot camp/birthday party business. It's perfect for 3D printing and customizing.

    @Rick: Yes, it's an 08M2.

    @zappman: One 08M2, one servo, two caps, two resistors, one switch, 1/8" programming jack, beeper & mosfet (underneath), and am IR sensor. I still have 2 unused GPIOs which may become a light tracker (2 photocells/phototransistors).

    Or twin flamethrowers. Don't tease the Turtle!
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • mindrobotsmindrobots Posts: 6,488
    edited January 2015 Vote Up0Vote Down
    erco wrote: »
    This one might become a kit before long as I'm getting into the robot camp/birthday party business.

    You mean kids in the LA area will soon be able to choose between a pony, Zippy the clown or Uncle Erco's Flameboyant Robots???

    I want Uncle Erco at *MY* next party!!!!!
    MOV OUTA, PEACE <div>Rick </div><div>"I've stopped using programming languages with Garbage Collection, they keep deleting my source code!!"</div>
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    mindrobots wrote: »
    I want Uncle Erco at *MY* next party!!!!!

    Multiple countywide restraining orders notwithstanding...
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    From "related posts" I am reminded that OBC posed this challenge long before I did. Just as Curious One does, I've been out-erco-ed again!

    http://forums.parallax.com/showthread.php/134173-I-need-your-help.-Simple-Single-Servo-Robot
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • WhitWhit Posts: 3,706
    edited January 2015 Vote Up0Vote Down
    Awesome Turtle-bot erco! Very fast...
    Whit+

    "We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths." - Walt Disney
  • ercoerco Posts: 18,414
    edited January 2015 Vote Up0Vote Down
    Don't let me have all the fun, fellas! I'm starting on single servo bot #2 already...

    I just ordered ten more 9g servos for $19: http://www.ebay.com/itm/141201759695

    Come on in, the water's fine!
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • xanaduxanadu Posts: 3,102
    edited January 2015 Vote Up0Vote Down
    Awesome! It's fun to watch :)
  • ercoerco Posts: 18,414
    edited February 2015 Vote Up0Vote Down
    This one uses the ratcheting wheels discussed earlier. :)
    "When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."

    - Pablo Picasso
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 21,233
    edited February 2015 Vote Up0Vote Down
    Elegantly executed, Mr. erco!

    -Phil
    “Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away. -Antoine de Saint-Exupery
  • NikosGNikosG Posts: 605
    edited February 2015 Vote Up0Vote Down
    erco wrote: »
    This one uses the ratcheting wheels discussed earlier.

    Not only with one servo but it also have and e perfect balance with only two wheels!
  • Martin_HMartin_H Posts: 3,988
    edited February 2015 Vote Up0Vote Down
    Neat. I like the minimal use of parts. I'd never be able to pull that off.
  • WhitWhit Posts: 3,706
    edited February 2015 Vote Up0Vote Down
    Very well done erco! You are on a single servo roll...
    Whit+

    "We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths." - Walt Disney
  • W9GFOW9GFO Posts: 3,728
    edited February 2015 Vote Up0Vote Down
    This Kickstarter video has a pretty good single servo robot, watch at about the 30 second mark.

    http://www.kickstarter.com/projects/1687812426/quirkbot-make-your-own-robots-with-drinking-straws?ref=HappeningNewsletterFeb0615
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