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Build a Paper Robot — Parallax Forums

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  • prof_brainoprof_braino Posts: 4,313
    edited 2012-10-17 04:51
    That is a really cool idea.

    Next step is to figure out where to mount the batteries. I guess we need for mechanical engineers to show structural trick for carrying load with paper.
  • Martin_HMartin_H Posts: 4,051
    edited 2012-10-17 05:26
    If we laminated layers of this wood fiber together I bet we could make it thicker and stronger.
  • PJAllenPJAllen Banned Posts: 5,065
    edited 2012-10-17 17:02
    Yeah - cardboard.
    And plywood's just glorified cardboard, right?

    ***
  • Martin_HMartin_H Posts: 4,051
    edited 2012-10-17 17:16
    PJ Allen wrote: »
    Yeah - cardboard.
    And plywood's just glorified cardboard, right?

    Bingo! Except I would say that plywood is what cardboard aspires to be.
  • ercoerco Posts: 20,256
    edited 2012-10-17 19:42
    PJ Allen wrote: »
    Yeah - cardboard.
    And plywood's just glorified cardboard, right?

    ***

    And to think I nominated that man as "most helpful"...

    He just set back my plywood movement a whole year!
  • NWCCTVNWCCTV Posts: 3,629
    edited 2012-10-17 19:48
    I was just getting ready to post about ruffling erco's feathers with this one!!!
  • Duane DegnDuane Degn Posts: 10,588
    edited 2012-10-17 20:22
    Here's another paper robot.
  • YanomaniYanomani Posts: 1,524
    edited 2012-10-17 21:07
    Corrugated cardboard can be very stiff.
    Maybe the batteries could be installed in the robot's feet or shoes. Perhaps something like Herman Munster's boots.
    One could assemble up to four 4LR44 6V alkalines using the boots to house them.
    In a more conservative aproach, one battery and a micro motor in each boot plus two more batteries as the lower half "muscles" of both legs.
    Caterpillar chains or soft rubber wheels, axles, leadscrews or pinions and some gears will fulfill the drive requirements.
    Add a tiny Prop board (flex, maybe) to its hart and some transistors and you are ready to go. A bunch of "vein" wires and leds and you get blinking eyes.
    Dual colored red/green to express emotions or acknowledge for commands.
    Wich commands? IR remote, of course.

    Am I dreaming? Maybe a little.

    Yanomani
  • ercoerco Posts: 20,256
    edited 2012-10-18 10:21
    Didn't Marie Osbot sing this?

    Paper Robots
    Paper Robots
    Yes I know those robots seem so good!

    But they're only imitation
    Paper never lasts as long as plywood
  • RobotWorkshopRobotWorkshop Posts: 2,307
    edited 2012-10-18 10:40
    Or, you can build a working robot arm out of cardboard:

    http://thecardboardrobot.com/
  • RobotWorkshopRobotWorkshop Posts: 2,307
    edited 2012-10-18 10:49
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2012-10-18 10:52
    erco wrote:
    Didn't Marie Osbot sing this?

    I was thinking more of a Malvina Reynolds song:
    Paper robots on the hillside
    Paper robots made of ticky-tacky
    Paper robots on the hillside
    Paper robots all the same.

    -Phil
  • jazzedjazzed Posts: 11,803
    edited 2012-10-18 10:56
    Nice thread.
    Next step is to figure out where to mount the batteries. I guess we need for mechanical engineers to show structural trick for carrying load with paper.

    Not to mention the servos and other junk.

    Functional paper robots will require out of the box thinking.
    - There was a mention of a flexible battery recently.
    - Maybe the toothbrush-bot can be used for transport (one per foot).
    - other ideas?
  • ercoerco Posts: 20,256
    edited 2012-10-18 13:22
    Too bad the name PaPeRo is alreday taken. Not a paper bot though. http://en.wikipedia.org/wiki/PaPeRo
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2012-10-18 13:36
    jazzed wrote:
    Functional paper robots will require out of the box thinking.
    For sure! Most boxes are made of heavier material. :) 'Sorry, couldn't resist!

    -Phil
  • prof_brainoprof_braino Posts: 4,313
    edited 2012-10-18 13:44
    memory wire insteads of servo?
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2012-10-18 13:52
    Memory wire requires a lot of current, so the battery would have to be bigger. But it's a tradeoff against the mass of a comparable servo that might still work.

    All kidding aside, paper structures can be made quite strong. Look at corrugated cardboard. It isn't really cardboard at all, but three layers of kraft paper glued together in a configuration that adds stiffness and strength.

    -Phil
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