Co2 Car
*During the assembly of the car, solidworks crashed, wiping the assembly as well as the construction of the body from my library. I'm working on fixing the body and completing the construction so that I can do the flow simulation*
Front wheel assembly with mate shown, followed by front tire and front rim features
Rear wheel assembly with mate shown, followed by rear tire and rear rim features
Front axle sketch and fillet, followed by rear axle sketch and fillet
Cartridge dimensions, shell outline, and chamfer features
Washer mid-plane sketch and dimensions
Product Co2 Car (Bullet Train)
Link to video tutorial of model car: https://youtu.be/BWZNn1EiomU
Color will be brass for the casing and bronze for the bullet
The length of the car will be nearly 200mm
The Cartridge will be fit into the back of the bullet
Because the shape of the car is that of a bullet, it is naturally very aerodynamic. The filleted faced and edges, along with its pointy head are the main contributors to its effective aerodynamics
After the first Flow simulation with the car, there will be a remodel in order to try and improve the flow sim data
The only tolerance that is needed would be for the axle holes
There will be an extruded base as well as a cut through that base in order to fit the wire on the car
The Design
The images presented are: the revolve base/bullet body feature, extruded base with extruded cut to create the axel holders, extruded base with extruded cut to create the holder for the wire, and a final image of my car.
Flow simulation one
Gif of flow sim trajectory (Isometric View)
Gif of flow sim trajectory (Front View)
Flow Sim 2
Gif of flow sim trajectory (Isometric View)
Gif of flow sim trajectory (Front View)
Additive Manufacturing
Bullet Train slicer preview with supports
Gif of Bullet Train in slicer
Race Day
Day One
Standings: Ranked 4th overall for thin-thin tires & 4th overall for fastest time in AM class (2.09)
Day Two
Standings: Ranked 4th overall for thin-thin tires & 4th overall for fasted time in AM class (1.504)
Day Three
Standings: Ranked 1st overall for thin-thin tires & 1st overall for fastest time in AM class (1.129)
These are the calculations for maximum velocity and average velocity of my car during each test.