How do co2 cars work

These are your rough sketches. Next you will complete one 1 Final Sketch of the car you think will be the best and the fastest. This final drawing will be used as the pattern to cut out your dragster. Be sure to show the location of the axle holes. Take your thumbnails, rough sketch, final sketch, and final drawing to the teacher to have them approved and graded.

Tape the templates on your wooden block and trace around them with a pencil. Be sure to locate and mark the axle holes and engine housing. Note: Tape the top view template to the bottom of the wooden block. Cut the side view first using the band saw.

Then, cut the top view, which you traced, on the bottom of the block. Be very careful not to cut into the engine housing. Insert one straw through the front axle hole and the other through the rear axle hole. Carefully place the wheels on the axles. Be careful not to break the wheels.

If the wheel does not stay on place a drop of hot-melt glue in the wheel before placing it on the axle. They screw into the bottom of the car. But probably more than a few Cub Scouts over the decades have wondered what the event would be like if the small cars had engines of their own.

How fast could they go? What would that competition be like? Fortunately, there is a type of racing out there that could be described as the "Pinewood Derby on steroids" -- CO2 racers, which are also small, wooden racecars where a propulsion system has been added.

In this type of racing, the participant builds a small carbon dioxide cartridge into the car, which propels it down a flat, level track. They're fast, too -- on a But even with something to create motion, aerodynamics and weight still make a huge difference [source: Science of Speed ]. Building a CO2 dragster can be a great project at schools because it teaches students about aerodynamics, as well as things like friction, inertia and mass. It can also be done as a competitive event or hobby.

Two hooks eyelets or screw eyes linked to a fishing line on the bottom of the car prevent the vehicle from losing control during launch. In a race, senors records the time taken to reach the end of the track. Often, the dragster is carved out of balsa wood because of its light weight.

CO2 Dragsters. This tutorial helps students to turn their side views of the CO2 Dragster into isometric 3D drawings.

Designers must be able to work with both types of views when quickly visualising and communicating using concept drawings. A basic grid is drawn in isometric and is used to construct the dragster in 3D.