Ages 9+

Crawling Robot


Take the next step in your engineering adventures with a crawling robot you build yourself! Construct intricate mechanical legs that let your robot walk like a crab. Add a set of wiggling arms, or design your own with custom arm connectors. Then learn about the engineering behind real-life robots that walk just like yours!

Why it’s awesome

  1. Make-it-move engineering

    Use real electronic components to make mechanical motion.

  2. Mesmerizing motion

    Crab-inspired leg linkages bend and sidestep.

  3. Create-a-critter

    Add eyes, arms, or custom attachments for a unique ‘bot.

What’s included?

  • motor

  • AA battery pack

  • 2 sticky foam sheets

  • 2 cranks

  • wood set (34 pcs)

  • 2 rods

  • 18 pegs

  • 4 clips

  • 22 foam donuts

  • 2 zip ties

  • body piece

  • screwdriver

  • 4 screws

  • 24 push washers

  • 4 arms

  • 4 arm connectors

  • 4 custom arm papers

  • 4 wiggle eyes

  • illustrated instruction booklet

Topics explored

  1. Robotics

  2. Engineering + design

  3. Mechanical linkages

From the desk of the product designer:

Behind the design

Because we had such a blast prototyping different arm designs, we decided to add customizable arm connectors so users could join in the creative fun!

- KiwiCo Product Designer

By the numbers


Links in the legs


Arm prototypes


Test distance walked



4 reviews

    Mark P


    Crawling Robot. Nice quality product. A real challenge to assemble. Good example of mechanics.






    Our grandson, age 8, was able to independently assemble the robot. The screwdriver was too small so he used the one in his sister’s eureka kit. He prefers the architectural sheet of directions over having them in a booklet. The robot worked well and entertained he family.



    We got a crawling robot from someone and some instruction was missing. I emailed KiwiCo to send us a video or any online instructions. They didn’t have anything, so they sent me a whole new kit for free. It was so sweet and generous of them! My 10 year old was thrilled, and you just gained a new customer, because we will order more kits in the future. Thanks again!

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