Mechathlon

What sort of chassis - one part or more joined together?

What method of propulsion: propeller or pulley or gears?

Does your Mechathlete need steering and if so - centre-pivot, ackermann. or single wheel?

Make rough sketches of how you think the buggy will look. You may prefer to draw views looking from the top and side rather than trying to draw in 3D.

DETAILED DESIGN DECISIONS:

For example, how will the electric motor and drive system be mounted onto the chassis? Where will the batteries fit and how many will there be? How will the throwing arm for the shot putt work and where will that fit?

DETAILED DRAWINGS

Measure the various parts in the Mechathlete pack and then make more detailed drawings of your Mechathlete using drawing instruments, if possible make the drawings full size. This will help you check that everything is going to fit and not interfere with any of the other parts.

Make a final working drawing that you can refer to when you mark out the various parts. Check that you have enough materials and components in your pack. You may need more from your school or the local model shop.

Note: You will need all your drawings if you want to get a Crest Award for your project.

MANUFACTURING

When manufacturing the chassis for your Mechathlete this is the procedure to follow:

1) Mark out all the parts accurately. Use a fineliner pen if you are using metal or a sharp pencil if you are using wood.

2) Cut out the pieces carefully and make sure they are the right size. Remember always measure twice and cut only once!

3) Punch or drill any holes that are needed.

4) Fold the metal parts or make the joints in the wooden ones.

5) Join the different parts together.

6) Insert bearing bushes

7) Fit the motor and other parts.

EVALUATION

Your Mechathlete will never be completely finished and remember during the competition there will be plenty of time to change and re-build it. But you will need to have it in a working condition before you arrive for the competition.