There are two ways to draw drawings, the first is to find other people's drawings, and the second is to design them yourself. There are many such pictures on the Internet. Print it when you find it. Many online stores in Taobao have drawings for sale and printing. What paper will help you?
Making tools: carving knives (both art knives and pen knives, scissors are not used much), adhesives (usually white glue), and some other tools for making parts, such as round sticks (or cylindrical pens), jewelry punches (used for punching holes) and so on.
If you want to design it yourself, you can draw it by hand or design it by computer. Hand-painting is more difficult, and high-precision work is more difficult. However, it is suggested that novices should not rush to design, at least make a few other people's drawings first, and understand the points that should be paid attention to before starting design.
The first step of computer design is 3d modeling, then use tools to expand each face into a plane, make sticky edges, and use other software to make skin maps if necessary. So the drawing is finished and can be printed.
At present, the software used for paper modeling mainly includes Rhino, King of Hexagons, Google Sketchup and so on.
Rhino is a professional mechanical, industrial design or 3d animation modeling software. It is absolutely more than enough for paper mold design, and any paper mold with high precision can be designed. There are many advantages. When drawing shortcomings, it is similar to drawing with "space geometry", which may be troublesome to draw advantages. But after all, the precision is high, and any paper mold can be designed. To make a military model, rhinoceros is a good choice because it involves many curved surfaces. The developed surface, which we call "mold opening", can be developed with rhinoceros's own tools, or with the mold opening tools built in by "Master of Paper Arts" or "Google Sketchup" after format conversion.
King of Hexagons is a software specially developed in Japan to make paper models, but personally, the tools it provides are too simple and it is quite difficult to make curved surfaces, so it is generally used to make simple paper models or gundam paper models. In addition, he will also cooperate with "Master of Paper Art" to open the mold.
"Google Sketchup" was originally designed for architecture, not the mainstream paper model design software. It's also a problem with surfaces. It approximates all surfaces to a combination of facets. However, its advantages are simple operation and friendly interface, and the design of building paper mould is quite good. The sketch master has released the waybe model extension, but this plug-in is charged. You can try changing the format and opening the mold with rhinoceros or paper master (I haven't tried this yet).
Finally, the movable paper model you mentioned is actually made into a movable structure in the process of design or production, which generally includes aircraft wings, doors of chariots, guns, hatch covers, limbs of robots and so on. There are not many drawings containing a large number of movable structures on the Internet, and most of them are designed by themselves or modified from the original design during production.