Tower Building Template and Guide
Division B
2024
Based on rules as of 5/29/2023
General instructions for building a bridge to span a 20 cm by 20 cm opening. (Bonus
points can be obtained by spanning a 29 cm circle. See rules.)
• Print out template and verify the reference square measure 5 cm in both directions
• Tape together template pieces. The tower should measure at least 51.0 cm tall, 4.8
cm at top and 15.0 cm at bottom (14.9 cm on inside of bottom).
• Pin or glue template to flat foam building board, cover with wax paper if you wish
• Build 2 sides:
• Long members: Cut two (2) - 3/16” x 3/16” pieces. Use pins to hold the
pieces in place on the template.
• Horizontal cross members: Cut 1/8” x 1/8”. Glue in place.
• Diagonal cross members: Cut 1/8” x 1/8”. Glue in place.
• When dry, remove sides from board. Clean-up and remove excess glue
• Make 2 sides
• Set 2 sides on template in a vertical orientation so one Long member is on the
template (on the Long member line) and one Long member is in the air. Pin in
place and add:
• Cross members: Cut 1/8” x 1/8”. Glue in place.
• Diagonal cross members: Cut 1/8” x 1/8”. Glue in place.
• When dry, turn bridge over and repeat previous step
• When dry, remove excess glue
• Check Tower for level (set loading block on top with small level). Adjust if
necessary
• Test Tower!!
• Repeat!
