Problem Statement

• 27 full-size craft sticks with holes drilled in the ends

• 29 shortened craft sticks with holes drilled in the ends

• 20 of #7 bolts and matching nuts

• Ruler

• Screwdriver

• Wrench

You must designate one or two bolts to which a wire will connect to attach the load as shown in the figure. Each load point must be more than 4 inches from the inside edge of the support (toward the center).

• You will work in teams.

• Count your sticks, bolts and nuts.

• Verify that all your materials are of acceptable quantity and quality.

  • ...Craft sticks which are damaged or improperly drilled may be replaced.

• Assemble a truss which meets the three objectives keeping in mind the principles we have discussed today.

• Keep a record of the following for your completed truss:

  • a diagram of your design

  • the number of long members used

  • the number of short members used

  • the number of nut-bolt pairs used

  • the weight at which your truss fails>

Excerpts from the ACSD (American Craft Stick Design) Code:

• Nuts must be fully seated (bolt threads show).

• All structures must be stable or they cannot be loaded.