To continue with our simple machine topic, today we made this super simple Articulated Grabber to demonstrate another kind of lever. This was such an easy project to do and Forrest really loved putting it together and he especially loved playing with it after.

UW6B8457

Supplies Needed:

  • Cardboard
  • Skewer
  • Double-Sided tape
  • Ruler/Measuring Tape
  • Pencil
  • Scissors
  • Split Pins
    UW6B8387

     

Instructions

    1. First cut your cardboard strips. You will need 6 strips 22x3cm and 2 6x3cm.
    2. Next, attach your small strips to your long strips using double sided tape.
      UW6B8393
      UW6B8394
    3. Now measure where the middle of your strips are and make a mark. Also make a mark about 1 cm from the edge (leave two of the long ones with only one hole at the top). Then using your skewer make the holes.
      UW6B8396
      UW6B8397
      UW6B8399
      UW6B8404
    4. Next, begin attaching them together. Start with the two long strips that only have two holes in them and line up the middle hole and put in a split pin
      UW6B8408
    5. Next grab the next two long strips that have three holes in them and connect them to each side using the split pins and then one in the middle.
UW6B8410
UW6B8415
UW6B8424
  1. Finally grab the last two strips and make sure that the "claws" are facing out when you attach them.
    UW6B8426
    UW6B8433
    UW6B8435
    UW6B8436
  2. Now see what you can grab with them! (it needs to be something very light!)
    UW6B8451
    UW6B8457
    UW6B8464