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Blog motorized scissor cutting weed - Automatic Weeding Robot #10
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  • Author Author: weiwei2
  • Date Created: 24 Mar 2019 10:55 AM Date Created
  • Views 1985 views
  • Likes 8 likes
  • Comments 9 comments
  • motorized scissor
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motorized scissor cutting weed - Automatic Weeding Robot #10

weiwei2
weiwei2
24 Mar 2019

Due to really lack of time, rush out this simple motorized scissor

first, i cut out a L shaped holder from old table calendar cardboard. it is hard enough and easier to work with

image

After that, i glue the scissor to the L-shape holder. well i could have attached it with screw, but...to save time, glue is useful

image

And this is the video that it is in operation. i do find that it needs at least 5V to operate properly. At 3V, it cannot move

From the power supply, we can also see that it needs 0.3A with load (compared to 0.1A during my testing load free)

 

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was originally thinking to put the magnetic sensor to detect the position of the scissor (either open or close) but let me do that last minute now it is to do system integration

putting everything together.

 

decided to use load sensor to sense grass

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Top Comments

  • BigG
    BigG over 6 years ago +1
    That's brilliant! I cannot ever remember hearing that you have to have elegance to be more effectiveness. Keeping it simple works for me....
  • 14rhb
    14rhb over 6 years ago +1
    This is a really neat solution, suitably bookmarked so I can find it in the future. I turned the volume up to see if I could hear anyone in your kitchen asking where the scissors were Rod
  • weiwei2
    weiwei2 over 6 years ago in reply to 14rhb +1
    in fact my home now has an extra scissor as i bought a replacement Hahahahh
  • dubbie
    dubbie over 6 years ago

    It is amazing what you can do with some plastic bottle tops and a pair of scissors. I look forward to seeing this cutting grass and or weeds.

     

    Dubbie

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  • jw0752
    jw0752 over 6 years ago

    With a scissor you will need to have a program sequence where the unit opens the scissor, drives 3 inches, closes the scissor and then repeats the process. Good proof of concept.

     

    John

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  • weiwei2
    weiwei2 over 6 years ago

    Now i am kinda rethink of the benefits of having access to many gears, a CAD + CAE for modeling and 3D printer to design precisely the mechanical mechanism

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  • three-phase
    three-phase over 6 years ago

    Great piece of ingenuity to move your project along.

     

    Kind regards

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  • weiwei2
    weiwei2 over 6 years ago in reply to DAB

    you are right. in fact i have a bigger circle half prepared but due to time constraint, put aside first as this scissor can minimally cut for now image

    But it is definitely something i want to improve after i complete all other pending stuff

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