PT 2.1 - Engineering Goals

Engineering Goals & Brainstorming

Engineering Goals

1. The standard issue mousetrap must be mounted on the vehicle chassis.

2. The spring on the mousetrap may not be cut, bent, over- wound, heat-treated or altered

in any manner.

3. No additional source of elastic potential energy should be incorporated into the

engine/drivetrain mechanism.

4. An additional input of energy of any form to the vehicle is forbidden.

We may supply our own materials and are encouraged to use recycled, repurposed materials; kits are prohibited.

6. Distance traveled will be measured in a straight line, with reference to the front axle of

vehicle from start point to the point where the front axle stops or leaves the designated

testing area.

7. Vehicles must have either 3 or 4 wheels.

8. Engineering modifications such as gearing, use of lubricants, bushings and bearings

are permitted.

9. The final assessment will consist of a maximum of 3 trial runs out of which the run with

the best score will be recorded; the vehicle cannot be modified further once it has

started on the first trial run and all 3 runs must be conducted within the same day.

Exception: Minor adjustments that are approved by the teacher assessor may be

allowed on a case-by- case basis; all adjustments approved and carried out must be

documented by the respective teams.

10. Standard issue mousetrap only used as the only energy source

11.  Physical dimensions not exceeding the following:

- Length = 30 cm max.

- Width = 15 cm max.

- Height = 15 cm max.

12. mousetrap car must move off from rest powered only by the drivetrain without any push/pull from student.

Design Criterions

Round and wide wheels: Must be able to have a decent grip (friction) and provide stability. They must have a smooth edge so that the car would roll very nicely.

Sturdily built : Must be able to hold the heavy mousetrap in place and also prevent the car’s body from breaking in the case of the lever arm snapping.

Light weight, small and compact: Must not weigh down the car too much so as to maximise the driving force of the mousetrap. Compact and small to reduce the air resistance when the car is traveling.

Rectangular shape: Will give the car more stability.

Feasible materials: Choice of materials must be easily accessible for us.

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