Traditional 3D printing pens mostly use engineering plastics (ABS/PLA, etc.) as materials, and use high-temperature hot melt methods: When working, it is necessary to heat the temperature above 200° C. (400° F.) in order to melt the ABS/PLA plastic material. Extrude and solidify the plastic by means of natural cooling or air cooling to achieve the rendering effect。
　　PLA is a biomaterial derived from corn grains,It is naturally degradable and does not pollute the environment,It has no pungent smell when processed and is very environmentally friendly. PLA's material is tough, strong impact resistance, and good gloss, high transparency, beautiful and bright printed products. Compared to ABS,the use of PLA prints objects with no cusp, so it is more suitable for printing large models,and can be printed without a heated bed。The printing temperature is lower,the interval is 190-220°C, with special Repair function, can be reshaped. Today's 3D printing pens use blue LED technology to replace ABS/PLA materials with photopolymers: the photosensitive resin material immediately undergoes blue light cure, which avoids the risk of burns due to the high temperature and high temperatures。
　　The consumable PLA of high-temperature 3D printing pens, polylactic acid, is a new type of biodegradable material made from the starch raw material proposed by renewable plant resources (such as corn)。Starch raw materials are made into lactic acid through a fermentation process and converted into polylactic acid through chemical synthesis。It has good biodegradability,can be completely degraded by microorganisms in nature after use, and ultimately generates carbon dioxide and water,does not pollute the environment, which is very favorable for the protection of the environment and is recognized as an environmentally friendly material。