Hello everyone, I am "SCALE ADDICTION". I have been rooted in the field of car design and 3D modeling for many years. Cars are the source of my love, and they also motivate me to constantly build a creative bridge between virtual and reality. Today, I must share with you my carefully polished 1/8 scale Supra 3D printing project, which hides my full love and persistence for cars.

For this project, I carefully produced 15 videos, from the explanation of the design concept, to the practical operation of 3D modeling, to various details in the printing process, all of which are presented in these videos. In these videos, you can see the whole process from my initial inspiration to the implementation of my ideas step by step. I hope that through these videos, you can understand this project more intuitively and deeply, and provide more references and help for you when making models by yourself.

Design intention: ignite the passion for model creation

The Japanese Supra plays an important role in the automotive industry. Its classic design and excellent performance have always been the favorite of car fans. I have been thinking about how to let more people deeply appreciate the charm of cars, and this 1/8 scale Supra 3D printing car project was born. I hope that it is not just an ordinary model, but a window for everyone to go deep into the wonderful world of car manufacturing, feel the unique charm of the oil-powered two-cylinder engine, and experience the fun of building a high-performance RC model car from scratch.

Design highlights: Accurate empowerment for dream cars

(I) Perfect fit, worry-free power

This chassis is designed for the SEMTO ENGINE ST - NF2 7.0cc oil-powered two-cylinder engine. Every interface and installation position has been repeatedly measured and carefully crafted. During the design stage, I conducted a detailed analysis of the engine's size, weight distribution, center of gravity position, etc. to ensure that the chassis and the engine fit perfectly. During installation, you only need to follow the precise positioning mark to easily complete the installation without worrying about adaptation issues, so that you can quickly enjoy the ultimate driving experience brought by the surging power and feel the passion when the real racing car starts and accelerates.

(II) Free customization, personal expression

Knowing that every model enthusiast desires to have a unique work, the chassis design incorporates an innovative design with adjustable height. Through the clever structural design, you can easily adjust the height of the car body. If you pursue the ultimate speed and handling stability, lower the body to make the model closer to the ground, reduce wind resistance, and improve grip; if you prefer a unique appearance, raise the body to show a unique personality style and make your model stand out among many works.

(III) Complete functions, upgraded experience

The model should not only have outstanding appearance, but also have rich functions and excellent playability. The chassis reserves installation space for the fuel tank and manual transmission. After installation, you can truly simulate the shifting operation during driving and feel the unique fun brought by manual control. With a powerful oil-powered two-cylinder engine, the roar at startup and the push-back feeling during acceleration can make you feel like you are in a professional racing track and enjoy speed and passion.

(IV) 3D printing friendly, unimpeded creation

Taking full account of the actual operational requirements of 3D printing, I designed the chassis to fit the size of a 320mm x 320mm print bed, and cleverly split the file into multiple parts, which greatly facilitated the printing operation. Each part is equipped with detailed dimensioning and exclusive printing parameter suggestions. Even a novice who is new to 3D printing can easily print out parts that meet the requirements based on these precise instructions. During the printing process, I also provided design suggestions for support structures based on the shapes and structural characteristics of different parts to help you avoid printing failures and ensure the perfect presentation of the printing effect.

Creative process: Thousands of trials and tribulations, pursuit of excellence

The entire design process is full of challenges and breakthroughs. It is a difficult journey of constantly challenging oneself and pursuing perfection. From the vague creative prototype in the mind at the beginning, to outlining the general outline on the drawing, and then using professional 3D modeling software for fine modeling, every link has been devoted to countless efforts. In order to make the engine compartment perfectly compatible with SEMTO ENGINE ST - NF2, I conducted more than a hundred simulation tests and optimized adjustments on the structure of the engine compartment to ensure that the engine is firmly installed, the heat dissipation is good, and the power transmission is smooth.

The design of the manual transmission has gone through twists and turns. In order to achieve a smooth shifting experience, I consulted a lot of automotive transmission information and referred to many classic design schemes. After repeated attempts and improvements, I successfully designed this manual transmission with realistic operation feel and stable and reliable performance. During the part printing test phase, I used a variety of mainstream 3D printers on the market for printing tests. According to the characteristics and printing effects of different printers, the model was adjusted in a targeted manner, striving to achieve perfect printing of each part on various printers and a perfect fit during assembly.

Notes: Make your creative journey smoother

(I) 3D printer specifications

Your 3D printer must have a print bed size of 320mm x 320mm to successfully print chassis parts. If the printer size does not match, the parts may not be fully printed or require complex splicing, which will seriously affect the printing effect and assembly progress. In addition, there are significant differences in printing accuracy, speed and stability between 3D printers of different brands and models. Before printing, be sure to fully calibrate and debug the printer, check key parameters such as the nozzle status, printing platform flatness, belt tightness, etc., to ensure that the printer is in the best working condition to obtain ideal printing quality.

(II) Printing materials and consumables

3D printing materials need to be purchased by yourself. It is recommended to use a 0.6mm nozzle for printing chassis parts and a 0.4mm nozzle for printing panels. Common 3D printing materials include PLA, ABS, PETG, etc., each of which has its own characteristics. PLA materials are environmentally friendly and non-toxic, with low printing temperatures and good molding effects, suitable for beginners, but relatively low strength and not resistant to high temperatures; ABS materials have high strength and good temperature resistance, but require high temperatures when printing, and have a certain odor. It is easy to warp during printing and requires the use of a heating platform for assistance; PETG materials have excellent comprehensive performance, good strength and temperature resistance, smooth surface, strong toughness, and are not easy to warp, but the price is relatively high. You can choose the right material according to your needs, printer performance and budget. At the same time, pay attention to the quality of materials and choose materials produced by regular manufacturers to avoid printing failures due to material quality problems, such as drawing, poor interlayer adhesion, dimensional deviation and other problems.

(III) Power system related

1. Running the engine model requires 20-25% Nitro fuel and 7.4V 2S Li battery, which are not included in the design drawings and starting accessories we provide, and need to be purchased from Stirlingkit. Nitro fuel is flammable and explosive. Safety regulations must be strictly followed during storage and use. Fuel should be stored in a cool, ventilated place away from fire and heat sources, and special fuel containers should be used for storage and filling. When adding fuel to the engine, make sure there is no open flame around to avoid fuel leakage and safety accidents. The 7.4V 2S Li battery should be fully charged before use, but be careful to avoid overcharging and over-discharging. Overcharging may cause battery bulging, fire or even explosion, and over-discharging will shorten the battery life. It is recommended to use a charger with overcharge and over-discharge protection functions, and regularly maintain and service the battery.

2. When installing the engine, make sure that all parts are firmly connected. The engine will generate strong vibration and high temperature when it is running. If the connection is not firm, it may cause the engine parts to loosen or fall off, affecting the engine performance or even damaging the model. During the installation process, use appropriate fastening parts, such as high-strength screws and nuts, and tighten them according to the specified torque. At the same time, check the fastening of the engine connection parts regularly and deal with them in time if they are loose.

(IV) Parts Assembly

1. Some parts, such as ignition devices and electrical plugs, are not included in the content we provide and need to be purchased separately from Stirlingkit. Before assembly, be sure to carefully check the parts list to ensure that all parts are ready. You can sort the parts in advance to avoid affecting the progress due to missing or confusing parts during the assembly process. For some small parts, such as screws, nuts, gaskets, etc., you can use a special parts storage box to store them to prevent loss.

2. Although we provide detailed assembly instructions, you still need to be careful in actual operation. Especially for some complex structures and small parts, such as engine internal components, transmission gears, etc., pay special attention to the installation order and direction during installation. If you encounter difficulties during the assembly process, do not force the operation to avoid damaging the parts. You can refer to our 15 video tutorials and follow the steps in the video step by step. If the problem still cannot be solved, feel free to contact our Stirlingkit customer service team, we will be happy to help you.

3. Purchasing this design does not mean that you can own a car directly. In fact, you need to use your own 3D printer to print the required parts, and you have to purchase a Semto engine model, starter accessories to start the engine from Stirlingkit, and assemble the parts of the remote control car. Follow the assembly instructions and connect all the parts in the correct order. Install all non-3D printed parts, plug in the remote control device, and you are ready to test drive your new remote control Supra model car for the first time. Enjoy it!

(V) Remote control system and debugging

1. As a remote control car, the installation and debugging of the remote control system is crucial. You need to prepare the appropriate remote control equipment yourself, including the remote control, receiver, servo, etc. When choosing a remote control device, pay attention to its frequency, number of channels and compatibility. Generally speaking, a 2.4GHz frequency remote control device has the advantages of strong anti-interference ability and stable signal, and is a more ideal choice. The number of channels should be determined according to the functional requirements of the model, and at least basic channels such as steering, throttle, and brake are required. During the installation process, carefully read the instruction manual of the remote control device to ensure that the line is connected correctly to avoid short circuit or open circuit.

2. When debugging the remote control system, pay attention to the settings and sensitivity adjustments of each channel. The steering channel should ensure that the steering angle is moderate, which can not only meet the steering needs of the model during driving, but also will not cause loss of control due to oversteering. The throttle channel should adjust the throttle response speed and linearity to make the model accelerate smoothly and brake sensitively. At the same time, pay attention to the interference of the remote control signal and avoid using it in an environment with strong signal interference, such as near high-voltage lines, transmission towers, microwave ovens and other equipment. During the debugging process, you can first conduct a simple test in an open field and gradually adjust the parameters until the controllability and stability of the model reach the best state.

Enjoy creation and gain growth

I sincerely hope that everyone can give full play to their creativity and hands-on ability after getting the design drawings. Whether you are a loyal fan of car models and eager to own a unique Supra model; or a student or mechanical engineering enthusiast who hopes to learn knowledge in depth through practice; or a DIY expert who is determined to show his talent, this project will be your best choice.

When you print out the parts one by one and carefully assemble them into a complete Supra model, hear the shocking roar of the oil-powered two-cylinder engine when it starts, and see it running at full speed under your control, the sense of accomplishment and joy will be indescribable. I also hope that after you complete your work, you can share the creation process and experience through social media or the official website, so that more people can appreciate the unique charm of this project.

If you have any questions or suggestions during the use of the design drawings, feel free to contact me or Stirlingkit, and I will do my best to help you solve them. At the same time, don't forget to watch the 15 video tutorials, I believe they will bring you more inspiration and help. Let us join hands to embark on this wonderful 3D printing model journey and build our own high-performance Supra!