3D printing is an emerging technology for prototyping of 3D models, which can print any shape. There are many types of 3D Printer due to their different applications and printing size. Among them DIY 3D Printer is suitable for those who are DIY hobbyist and would like to materialize their DIY 3D models which are designed with specified software.
Unlike industry and commercial 3D printers, DIY series is with smaller building size that for small and medium 3D models. Their printing precision is not as high as industrial level, but for DIY use, it is enough. If you would like to print 3D models with irregular shape, it is a great solution.
Adopting FDM (Fused Deposition Modelling) technology, the DIY 3D printer can print by works by melting plastic filament that is deposited, via a heated extruder, a layer at a time, onto a build platform according to the 3D data supplied to the printer. Each layer hardens as it is deposited and bonds to the previous layer.
The extruder has a nozzle that extrudes filament material. The extruder can work with nozzles that come with different diameters, generally 0.3mm, 0.4mm and 0.5mm are available. The smaller the nozzle diameter is, the higher the printing precision is. The layer thickness is also another important factor that affects precision and surface fineness of the printed things. 0.01mm can be a perfect thickness that ensures smooth and fine surface.
There are many types filament (printing material) can be supported, such as PLA (plastic), ABS, nylon etc. And the common filament diameter is 1.75mm. When choosing material, please make sure that the printer supports it. Different printers from different suppliers may with different extruders which have different melting temperatures, thus the material you choose shall support the melting temperature.
Another point shall be considered when choose a DIY 3D printer is the printing speed, which can be measured by the length of material that is melted and extruded by the extruder per second. Generally 80-120mm/s is a normal speed, the faster the speed is, the less the time consumed by the printer to print the entire 3D model will be.
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