Plastic ones are a bit difficult to make, but I can tell you the basic methods, tools and practices of making model airplanes. The above answers are also good, and can be adopted together! ~ ~ Common tools are: ruler, knife, planer, saw, file, drill, pliers, scissors, wrench, pen, soldering iron, etc. All tools must be used correctly, so as to give full play to the role of tools, improve the precision and accuracy of model making, and make a model plane with excellent performance. Pay attention to the straightness of the ruler. Knives should be sharp. Don't cut against the texture when using. Planing with a small plane dedicated to the model can improve the working efficiency and manufacturing accuracy by leveling the surface of the large model. The use of saws, because the material used to make the model is not very big and thick, usually use a saw blade with relatively small teeth, you can choose your own hand saw according to the situation, and often use a curved saw. The use of file, rough file is used to process blanks and workpieces with large margins to improve efficiency; Precision file is used for precision machining to ensure the accuracy of machined parts; Smooth file is used for fine workpieces with high surface finish. The most commonly used model is assorted files. There are many round eyes in the use of drill bits, especially in the production of remote control models. If the material is not thick, you can use some materials to make small edge drills and flat drills. If the material is thick, we can use tools such as electric drills. If conditions permit, you can use a small desktop electric drill. The commonly used materials are paulownia, pine, basswood, birch, cypress, balsa, laminated board and so on. Paulownia is often used when making hand-throwing and ejection models. For the material selection of structural wings, if the spar is slender and the main stress part, it is necessary to choose pine with high strength and flat texture. Ribs are mainly used to keep the shape of the airfoil, and the stress is very small, so they can be made of paulownia or balsa wood with light weight and certain strength. The plastic filling parts such as wing root and wing tip can be made as much as possible, and the stress is small. Lighter paulownia, balsa wood or tipping can be used. On the premise of ensuring strength, materials with uniform material, straight texture, no scar and light specific gravity are selected to meet the requirements of ensuring strength and reducing weight. Tung wood is the most commonly used model material, especially paulownia, which has the characteristics of light specific gravity, high relative strength, small deformation and easy processing. Lighter materials should be used for wing ribs, mask plates, webs and the rear section of fuselage. The rear edge, tail beam and longitudinal beam of the fuselage should be made of materials with fine wood, flat texture and high strength. Pine northeast pine is a good material for making slender mechanical parts in the model because of its uniform texture, delicate wood, light weight, easy deformation, easy processing and elasticity. Birch is hard, uniform and dense, and has a large proportion, so it is a good material for making propellers. It can also be used as mechanical parts such as engine frame. Basswood is a good material for making realistic models, and can also be used for hard-shell fuselage, propeller and engine frame. The edge is soft, textured, easy to deform and easy to form and fill. The model of balsa wood is better than paulownia, which can improve flight performance, but the price is higher. When using wood, characteristics such as strength and stiffness should be considered. As early as 800 years ago in the Song Dynasty in China, architect Li Jie set the section height-width ratio of building materials as 3∶2. By the end of18th century and the beginning of19th century, Tom Young found that when the height and width of the section were 3.46∶2, the stiffness of the material was the largest. When the aspect ratio is 2.8∶2, the strength is the highest. When the height and width are equal, the elasticity is maximum. When using, choose the appropriate material according to the size and structure of the model. Laminated basswood laminates are often used as fuselage partitions and upper dihedral corner stiffeners. Birch laminates can be used as strong face masks, ribs, frames and reinforcing plates for wing roots. Bamboo is also commonly used in fashion. The traditional technology of leather used cotton paper and nylon yarn, and later developed non-woven fabric and new material heat shrinkable film. On the model, paulownia skin is also used as needed. Heat shrinkable film can save some money, but it mainly simplifies the manufacturing process and shortens the manufacturing time. Commonly used adhesives are white latex, resin glue, 502, etc. Dry glue needs to be prepared by itself, which has a wide range of applications and is convenient for bonding. The disadvantage is that it is toxic and should not be used for a long time. White latex is cheap and takes too long to cure, which is not conducive to the finalization of the model. Models and parts that are easy to set or can be set with a workbench are often bonded with white latex. Resin adhesive has stable performance, water resistance, oil resistance and corrosion resistance, and is suitable for engine frame and other mechanical parts. It should be carried out in strict accordance with the gluing instructions to ensure the gluing quality and can also be used for repair work. 502 is suitable for the connection and repair of small gaps, so be careful not to stick to your hands when using it. The processing and cutting of wood will cut off the redundant parts of wood chips, or intercept the required wood strips, front and rear edges, webs, ribs, etc. From sawdust. When cutting, pay attention to the direction of wood grain, gradually apply force until cutting, and do not cut with one knife, especially when cutting circular arcs. Planing Because most of the materials used now are planed, wood strips and chips are rarely planed unless they are made or used in special specifications. At present, it is often used to make large-scale remote control model fuselage or realistic model, and the surface needs to be trimmed by planing to improve work efficiency and production quality. Splicing is used to widen and lengthen wood chips. Pay attention to keep it flat after splicing, and pay attention to the direction of annual rings when thickening, which is not suitable for bending and deformation after splicing. When grinding, you should follow the direction of wood grain, apply force evenly first and then lightly, and choose appropriate sandpaper for grinding. Water sandpaper is often used for polishing before polishing. When bending the front and rear parts of oval wing tips or rolling thin-shell fuselage, the wood should be bent. The main methods are: baking, boiling and cold bending. You can use it according to your own preferences.