Single-seat race car with movable rear wing (no supports, no hardware required)

This is a **single-seater racing car that uses 3rd generation optimized printed springs**,**requires no hardware,** can be opened by prying the front gap of the cockpit with a fingernail (it has a damping feel), and the tail wing can tilt and rotate about 30° (it has a damping feel, if the tail wing is installed incorrectly, it will not reach the specified angle)!! The steering wheel and driver's seat are slightly fused, this is for easier printing without removing supports!! It has fewer parts and is easy to assemble~ Note: If the adhesion between filament layers is poor, the tail wing buckle might break when pressed (although I haven't experienced it breaking yet)...!! (Small size LWH approx: 75.8*45.6*28.9mm)

The GIF below is an assembly diagram: assemble it however is convenient for you~!!

1. Wheel Tilt Place it onto one side of the axle buckle, then press with your thumb at the red circle, and press with your index finger at the side of the wheel to press it in (using the lever principle). The other wheel is installed the same way (see the GIF)!!

Note: 1. Both PLA and PETG can be printed. It's best to understand the characteristics of these two materials before printing to avoid printing failures!! For example, PLA can become brittle if left for a long time or at low temperatures, while PETG has good toughness. Please choose the filament that suits you!!

        2. If it's for younger children, and the parts are small and easy to disassemble, it's better to glue them firmly with 502 or other adhesives to prevent them from being swallowed!!

        3. If there are no special requirements, please do not use your own advanced process settings for printing~ to avoid printing failures!!

If your printd part has local spaghetti, or the filament doesn't stick to the build plate, please recall if you touched that area (hands secrete sweat and oil, touching it has a very high chance of causing spaghetti)  or if the build plate is dirty. The solution is to search online for how to clean a 3D print plate!! If other problems occur, please describe it in the comments section and add pictures, so it's easier for us to solve it~  Otherwise, I can't imagine the situation = =!!