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Step 1: Create Design. To create my design, I used CorelDraw x3. Step 2: Print Design and Cut. I then laser printed my design on the wood, I used a saw to cut it out. Step 3: Drill Holes. Step 4: Add Axels. Step 5: Use Washers. Step 6: Add Wheels. Step 7: Add CO2 Cartridge, and GO! Step 8: Ask Questions!.
What do you need to make a CO2 car?
Gather your hardware: two axles, two straw bearings, four wheels, four washers, and two screw eyes. Depending on the configuration of the car body, different hardware might be required. Cut the axles so they are 1cm longer than the width of your car.
How do you start a CO2 car?
In the launcher, a homemade firing mechanism made from a trim nail, two bolts, two springs and a 1 1/2″ wide x 3/8″ thick short strip of hardwood. Simply hit the hardwood strip in the center with a hammer and the pin will pierce the Co2 canister, releasing the gas and sending your rocket car on its way.
What are CO2 cars made of?
CO2 dragsters are made of lightweight material usually balsawood or basswood. They are propelled down a track by compressed carbon dioxide gas. The CO2 cartridge is punctured so the compressed gas can rapidly leave the canister causing the dragster to move.
What is the best length for a CO2 car?
You need to have at least 60 feet without any obstructions. Any shorter distance than this, and the cars will destroy themselves upon finishing a race. The optimum track length is 66 feet (20 Meters), which is in scale with real dragstrip lengths of a quarter mile.
What is the fastest CO2 car?
The recent Braden River High graduate built the fastest CO2 dragster in the nation, racing his way to a first-place finish in the Technology Student Association’s national dragster competition and setting a national record of . 925 seconds on a 65-foot track.
What happens if you puncture a CO2 canister?
You will have to re-inflate your tyre with normal air, which includes larger molecule that leak out slower. If you don’t use all the CO2 gas in the cartridge, it will leak out over the next ~30 minutes approximately.
How fast can a CO2 dragster go?
They’re super quick, on a (20-metre) track, the cars can cross the finish line in just over a second, travelling at a top speed of around 90 kilometers per hour. The CO2 dragster may be small, but it’s going to be moving at incredible speeds when you race it.
What is a shell CO2 car?
Shell Cars – the wheels hidden. inside the body. EXAMPLES OF DRAGSTER SHAPES AND STYLES. Rail Cars – the wheels outside the body. Shell Reveal – the wheels inside.
How can I make my CO2 car better?
You can help reduce it by making sure the axles are free to rotate, and that the wheels and tires are not rubbing on the car body. Drag: Here’s where aerodynamics come into play. As an object moves through the air, it is met with air resistance as speeds increase.
What makes a fast CO2 car?
Aerodynamics, thrust-to-weight ratio, surface drag, rolling resistance and friction–all play a role in what makes a CO2 car fast or slow.
What is the best shape for a CO2 car?
Sphere – A very good aerodynamic shape because of it symmetrical shape. Which allows air to flow over it’s surface with very little disruption to the air stream.
How much does a CO2 dragster weigh?
It weighs 3600 pounds. Fuel consumption is about 40 gallons per minute. Your dragster uses a CO2 cartridge for power. The cartridge contains CO2 gas under pressure.
Is there a supersonic car?
The Bloodhound supersonic car that was built to break the land speed record is up for sale. Bloodhound became one of the fastest cars in history during trials in the Kalahari desert in 2019. But it needs the addition of a rocket motor to break the all-time record speed of 763mph (1,228km/h).
How fast does a dragster go?
Among the fastest-accelerating machines in the world, 11,000-horsepower Top Fuel dragsters are often referred to as the “kings of the sport,” and with good reason. They are capable of covering the dragstrip in less than 3.7 seconds at more than 330 mph.
How do you reduce drag?
Engineers reduce friction drag by making the airplane more streamlined, the wings narrower, or by using new materials that make the surface more smooth, decreasing the ability for the force of drag to effect it. As the roughness and surface area of the airplane decreases the friction drag will decrease.
What is a drill press used for when making our race cars?
Axle holes should be drilled perpendicular to the car’s longitudinal axis in order for the car to roll freely and straight down the track. A drill press is highly recommended because it makes drilling perpendicular holes a cinch. 1.
How does a CO2 cartridge work?
Basically, CO2 cartridges are little cans filled with pressurized carbon dioxide gas. Though they’re small, cartridges contain CO2 gas at pressure, so that when they’re attached to the valve of your tire, they fill the tire with gas very quickly – saving you the time and physical effort associated with a manual pump.
How much force does it take to puncture a CO2 cartridge?
CO2 liquefies at a pressure of 70 bar at 2500 C.
Can CO2 cartridges cause fires?
Carbon dioxide is the end product of carbon burning in oxygen. This means that carbon dioxide is not flammable as it will not react anymore with oxygen, no matter how hot things become. This doesn’t mean that we can ignore carbon dioxide in relation to fire though.
Can liquid CO2 explode?
Asphyxiation is generally considered the major hazard of CO2. However, a severe hazard associated with pressurized CO2 is the Boiling Liquid Expanding Vapour Explosion (BLEVE).
How much does it cost to build a dragster?
They weigh about 1000 kg which makes for a massive power to weight ratio. The total finished cost of a Top Fuel dragster is estimated at $500,000.
How do you reduce drag on a CO2 dragster?
Three Things You Can Do to Reduce Drag in CO2 Cars Golf Balling. Covering the surface of your car with small, semi-circular pits (“golf balling”) does two things. Get Low. The bottom of your car experiences just as much drag as the top, so make sure to keep things smooth and straight all the way around. Sleek Over Small.
