Bat Cave

Effects of Temperature

Battery Unit• The heater is a 72-volt unit. It is primarily

used to defog the windshield. Using it will rapidly deplete the batteries, shortening your range.

• From the owner’s manual

Measuring Turning Radius of car

Dimensions of the Room

Turning Radius

Our Proposal

Skateboard Testing• The skateboard didn’t break!

Important Considerations

Torque vs Force

Force estimated between 200 to 350 N

100

115

130

145

160

175

190

205

220

235

250

265

280

295

310

325

340

355

370

385

400

0

200

400

600

800

1000

1200

1400

Force (N)

Torq

ue (N

m)

Bending Moment

Gear Reduction

Manual Crank

Automatic Cranks

Our Future Building Plan

Future Development• More testing• Strength of materials

Possible Future Ideas• Explore ways to turn the motion of

crank into turning power for the arm using some form of gear

• Build a model of the Zap car and arm for small scale testing

Conclusion

Our idea provides a simple, reliable, and cheap solution to moving the car into the bat cave