What kind of 3D printer works well?

I am a student, pocket money is limited, what kind of 3 printers within USD 300.00 high precision does not print large

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3D printers have been introduced into the country for a long time, and the prices range from several million to more than one thousand. From the current stage, the cheapest 3D printers only cost about 1,500 yuan, but they are basically crowdfunded products with a simpler overall design; while the products of well-known manufacturers are between 5,000 and 20,000 yuan. It takes time and the types of 3D printers are as follows:
1. Desktop 3D printers. This type of printer is characterized by its small size and simplicity, and is often used to print small crafts and small parts. When buying at home, this type of printer or gantry-type simple 3D printer is generally considered.
2. Laser sintering 3D printer. Laser sintering printers should be the most expensive guy in the 3D printer family. The price of a laser head alone can reach tens to more than one million.
3. Parallel arm 3D printer. This printer uses a parallel structure, which reduces the weight a lot under the same stiffness and has certain advantages in transportation.
4. Gantry type simple 3D printer. This structure is currently the cheapest, and the cheapest one on Taobao has sold for more than one thousand yuan. But this is also the most unstable structure, because most manufacturers do not make reliable connections at the fixed parts, and often use cheap materials. At present, there are non-metal powder sintering and metal powder sintering. Metal powder sintering has certain application value, and the strength of the sintered parts can meet the manufacturing requirements of low-strength parts. Therefore, the various advantages and disadvantages of 3D printers are still considered from their own needs and suitability.