This is the first model that allowed us to learn the basics of engineering stem racing cars, including learning aerodynamics and the importance of weight. This prototype was made in 2025, we made two of these cars, as at the start of the year there was 4 members in our team and we worked on each car as partners/duos. These cars were made from cardboard cut into special shapes and was considered our team's first test vehicle. Paper Falcon 1 was made by the group consisting of Federico (Car designer and manufacturer) and Alexandre (Team manager). Which beat Paper Falcon 2 by 0.169 seconds with a time of 1.160, averaging a time of 1.180 in 3 races.

This is the first car we have modeled, built, and 3D printed. The car was manufactured on March 4th, 2026. The material used for 3D printing was ABS. The entire car was modeled by Federico using Autodesk Fusion, the car fits the STEM Racing requirements for the T3 category. This vehicle employs a lightweight design and a low drag, featuring a rear wing, front wing and sidepods. We had many problems with this prototype but it will help our development of our future cars. These problems consisted of having support materials that were too strong and the holes for the axles and gas canister not being the correct size.

This is our second prototype that has been modeled and manufactured, according to STEM racing rules. It was completed on March 18, 2026. This time, we used ABS again. However we changed the strength of the support materials for them to be easier to remove. The body was improved to reduce drag. We encountered many challenges during the construction but found solutions for it. The holes for the wheel axles were too small but we used a drill to increase the size to perfectly fit the axles. Another challenge we are now dealing with is excessive weight, and a bit of turbulence caused by an excessively thick and large rear wing. The weight of our car is 105g. For future prototypes we will work to fix this.

This is our third prototype for our stem racing car. It was completed on March 23, 2026. This time we also used ABS. Compared to Falcon Prototype #2, we optimized the aerodynamics of the nose by curving the front nose We still encountered some challenges during the manufacturing, such as excessive weight and wobbling of the wheels due to manufacturing issues. The rear wing currently is overly large and high which can create turbulence.

Following the previous model, we realised that achieving a successful final design would require finding an equilibrium between weight and aerodynamics. We realised that our aerodynamics weren't the problem; it was our weight. As nothing could be altered in the design, we had to raise funding to buy a new kind of filament: lightweight PLA (LW-PLA). After printing the car, we used dry sandpaper on the front and middle to allow air to pass more easily over the car. Additionally, the car was underweight after printing, which allowed us to apply paint and decals. This improved design and superior filament enabled the car to achieve a track time of 0.785 on a smaller track. This shows significant improvement in both the car and our technical design. However, during testing, half of the rear wing flew off, so we will secure this aspect better in future. This car was completed on 30 April 2026, significantly improving our design.

To further improve this car we will add decals and paint to make it legal in a competition. This will also allow the aerodynamics of our final car to be significantly improved.