Make sure all materials and equipment are listed in the Procedure below.

Each group needs:

• digital caliper (available online)
• mass (for example, from a mass set (available online))
• 2 ft (~61 cm) of cotton twine
• 2 hooked stands (available online)

For the entire class to share:

• FDM 3D Printer (Prusa) or Monoprice (recommended)
• PLA filament spool (available online)