Knex Crane Capeble of Lifting 3kg

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It doesn't have the looks but gets the job done. I used a pulley system and a lot of gear wheels. (I didn't use to much gear wheels otherwise it would go very slow.) On a simple electric engine. Sorry but i am not going to post this, trust me making a crane like this is much more fun by your own. It took me to make it about 8 hours to get it up to 3kg.

I also made some other instructables.

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    17 Discussions

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    rustymia

    7 years ago on Introduction

    Check out my knex crane on instructables here: https://www.instructables.com/id/Worlds-Strongest-Knex-Crane-Lifts-13lbs/

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    tarantula123

    8 years ago on Introduction

    would you please send me insteructions on how to make this please, because i looks cool!

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    tarantula123

    8 years ago on Introduction

    you know what, this looks like the crane they used in chile to rescue 33 trapped miners

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    ferrari484Randomguy65

    Reply 9 years ago on Introduction

     I can certainty understand that. Ow and if would poot 3,5kg on it. The rod connected to the engine bends. And if you wait to long ill just snap.

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    Goochmasterferrari484

    Reply 9 years ago on Introduction

    Nope..
    BUT
    It can lift a knex ball,
    it lowers the box, and picks up the ball, all by itself :)
    its weak, but very fancy!

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    ferrari484

    9 years ago on Introduction

    Sorry but i already took it apart and i used a nylon string. I axially don't make those pictures so you all can figure it out your self and make it even better.

    1 reply
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    xobile001

    9 years ago on Introduction

    Nice job on the pulley system. Pictures of the top of the crane showing the pulleys would be nice, maybe you can add those (unless you took it apart already). What kind of string/cable/wire did you use?