How to make a conveyor belt for kids

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How to make a conveyor belt for kids
Use Lego to make a toy conveyor belt. (kayros/iStock/Getty Images)

Building a conveyor belt out of Lego building blocks illustrates the principle of the conveyor belt. Kids can also build onto the belt using their own creative designs.

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Things you need

  • Lego:
  • 18 pelvises (with legs)
  • 16-by-6 stud plate
  • 12-by-4 stud plate
  • Two 16-by-2 stud plates
  • 10-by-2 stud plate
  • Two double-wheel suspension 2-by-4s with snaps for the wheels
  • Two wide 8-by-14 rims with holes for the suspension snaps
  • Two low, wide 24-by-14 tires
  • Strong, water-soluble, nontoxic craft glue (like Elmer's)

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  1. 1

    Gather all of the materials. To find help with the definitions or to order the parts that you don't have, use the Lego Digital Designer program that is available as a free download.

  2. 2

    Snap a rim on each suspension. Slip the rubber wheels onto the rims. Orient the wheels so that the suspensions have the wheels both pointing the same direction.

  3. 3

    Mount one of the 16-by-2 plates to the underside of the suspensions in the centre. The suspensions are mounted on either end of the plate and overlap four studs each.

  4. 4

    Mount the 10-by-2 stud plate on the underside of the other 16-by-2 stud plate. Put the smaller plate onto the larger one so that the blocks overlap at all 20 studs and are centred. Snap this combination on top of the suspensions so that the ends of the 16-by-2 stud cover four studs on each suspension. The four studs that you need to cover are the four on the side closest to the wheels.

  5. 5

    Slip the edge of the 12-by-4 into the space on the 16-by-2 block so that it fits in between the gap between the 15 circles and the frame that goes around the circles. On the underside of the bottom 16-by-2 attached to the suspension are a series of 15 circles.

  6. 6

    Slip the opposite edge of the 12-by-4 into the gap between the studs of the 16-by-6 plate so that the majority of the plate protrudes in the direction of the wheels.

    How to make a conveyor belt for kids
    With the conveyor belt removed
  7. 7

    Put the Lego pelvises together into a long loop by inserting the studs that normally go into the Lego body into the underside of the feet of the next pelvis. Use the craft glue to secure the joint between each pelvis where the two pelvic studs slide into the underside of the feet. Do not get the glue on the leg joints. Wait for the glue to dry before slipping the belt onto the wheels.

Tips and warnings

  • This project can also be done using cardboard. Cut cardboard into 2 cm by 3 cm (7/8 inch by 1 1/4 inch) squares, then join them with a strip of paper where they are glued to create a flexible backing for the loop.
  • There are small parts associated with this project and the toy can pinch. Read and follow all safety instructions that came with your Lego building blocks.
  • The glue will dissolve in water or if sucked on by a child, which can make small parts get smaller and more dangerous. Do not let children put these toys into their mouths.

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