Materials List: Creative Engineering Design:
Model EV Design Challenge

EV motor circuit provided for each team:

  • DC Motor
  • two AA rechargeable batteries
  • AA battery pack for two batteries with on/off switch
  • two alligator clips

A student aligning gears on a model electric vehicle.
Aligning the gears on the motor and axle is a crucial part of the model EV design.
Copyright © 2023, Alezzandra Diaz

Basic car components (team chooses component materials):

  • Chassis:
    • stiff, lightweight frame material (cardboard, wood, plastic container, popsicle sticks, etc.)


    • CAD modeled and 3D printed or laser cut
  • Drivetrain (attached to chassis to integrate motor, axles, wheels):
    • pulley system (two pulley wheels, one on motor spindle, one on axle, connected by a rubber band)


    • gear system (two interlocking gears, one on motor spindle, one on axle)
  • Wheels & Axles:
    • axles (metal, wood, plastic, etc. dowel rods)
    • straws (glue to bottom of chassis, thread axle through)
    • toy wheels, plastic caps, etc. to attach to axles

Suggested additional materials for class use:

  • classroom battery charger and extra batteries
  • basic tool kit for the classroom (rulers/tape measures, hammers, screwdrivers, wrenches, pliers, etc.)
  • foam core, Styrofoam
  • stiff base material (thin plywood, balsa wood, plastic or metal sheeting, etc.)
  • hot glue gun and glue sticks
  • duct tape, rubber cloth tape
  • scissors, utility knives, hand saws
  • sandpaper
  • markers
  • toy/model wheels, plastic bottle caps, spools
  • wood, metal, plastic dowel rods
  • cardboard boxes and tubes
  • cans (aluminum, tin)
  • plastic bottles
  • straws
  • Popsicle sticks, craft sticks
  • rubber O-rings
  • rubber bands various widths
  • coat hangers, wire
  • silicone or other caulking
  • nails
  • screws, eyebolts
  • miscellaneous extra materials provided by teacher and students