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Engagement
  • Author Author: dubbie
  • Date Created: 11 Dec 2020 5:46 PM Date Created
  • Views 1039 views
  • Likes 10 likes
  • Comments 9 comments
  • worm robot
  • crawling robot
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Crawling Worm Robot

dubbie
dubbie
11 Dec 2020

I have seen these crawling worm robot kits around for some time and always thought they looked interesting, so while I was buying other people Christmas presents, I bought one for myself as well.

 

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It has some neat design features to make it simpler to construction and low cost. The battery compartment comes with a built-in switch. Not a good picture below  but you can just about see the lever that you turn to make a contact with the other battery terminal.

 

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It probably took about an hour to put together and it does have some very small screws and some fiddly assembly sequences. Additionally the instructions were in Chinese but by carefully viewing the diagrams on the leaflet and overcoming my fat fingers and less that perfect eyesight I managed to put it together.

 

image

 

A fascinating motion. It truly zips along at some speed.

 

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Technically, it is not a robot as it does not have any sensors or even a controller, but I think it would be relatively easy to add an Arduino of some description, plus a sensor, and then it will be able to interact with it's environment. I wonder if I can connect two or more together to make a much longer worm?

 

Dubbie

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Top Comments

  • beacon_dave
    beacon_dave over 2 years ago +5
    Is this 'bait' for your cat detector ? genebren this type of action may drive your whistle bellows for your Mr Machine
  • DAB
    DAB over 2 years ago +4
    Nice build. It would cause my dog to attack it immediately. She likes to chase anything that moves. DAB
  • ntewinkel
    ntewinkel over 2 years ago +3
    Aahaha that's awesome! Is the worm action used to propel it forward, or is all of that just in the drive wheels? -Nico
  • DAB
    DAB over 2 years ago in reply to dubbie

    I used an RC car to tease my Jack Russel.

    She would attack it until it stopped moving.

    All I had to do was make it twitch and she would pounce on it again.

    She eventually took most of a tire off.

     

    DAB

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  • dubbie
    dubbie over 2 years ago in reply to DAB

    DAB,

     

    Well, it would give the dog some fun, one at least!

     

    Dubbie

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  • dubbie
    dubbie over 2 years ago in reply to kmikemoo

    Mike,

     

    I too was greatly surprised by how fast it goes. It is almost as fast on carpet as well.

     

    Dubbie

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  • dubbie
    dubbie over 2 years ago in reply to ntewinkel

    Nico,

     

    Yes, it is the worm action that propels it forwards. The white wheels are unpowered and just roll. It is something to do with the momentum and although not easily visible, there are two elastic bands which I thought couldn't be doing much, but it works much better when they are installed. I might have a go at trying to think about how it works - although I'm not sure I have the brain power to do that any more. It must be fairly simple physics and conservation of energy (momentum? ). I might have to read some physics.

     

    Dubbie

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  • dubbie
    dubbie over 2 years ago in reply to beacon_dave

    Dave,

     

    I hadn't thought of that concept. The cat or cats are currently using my newly planted pots of bulbs as toilets - which is not generating any good feelings towards them at present. I have been thinking of creating some sort of sentinel robot to protect my pots from cats, maybe a larger version of this worm robot  might do the job.

     

    If I can crack that problem I might start looking at anti-slug robots as something is currently eating my cauliflowers at a rapid rate.

     

    Dubbie

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