Step 17: Step 16: Connecting the Trusses, Top supports
Connect the top of the trusses by gluing the top supports to them. Wait 30 seconds to let the glue dry. Now your bridge is complete and is ready to b...
Step 2: Step 1: Base
Measure and cut a 14 inch piece of balsa wood and label it the base. (Tip: when cutting balsa wood it has a tendency to fray at the ends leaving an uneven finish. To prevent this, cut the balsa wood by pulling the knife toward you similar to cutting a steak with a knife. This will leave a clean cut.)
Warning: keep your fingers away from the blade of the xacto knife as can cut the skin.