There are three main reasons to consider:

1. Is the printing platform flat?

If the platform is uneven, the first layer of printed matter is not easy to go to bed and is easy to curl.

2. Will the first layer print too fast?

If the first layer is printed too fast, the plastic may not have enough time to stick to the platform, which may easily lead to the above problems.

3. Is the nozzle too far away from the platform?

Whether the distance between the nozzle and the platform is appropriate directly determines whether the wire can obtain sufficient adhesion by sticking to the platform.

3D printing (English: 3D printing) is a rapid prototyping technology. It is a technology based on digital model file, which uses adhesive materials such as powdered metal or plastic to construct objects by stacking layer by layer (that is, "layered molding method"). In the past, it was often used to make models in mold manufacturing, industrial design and other fields, but now it is gradually used in the direct manufacturing of some products. In particular, some high-value applications (such as hip joints or teeth, or some airplane parts) already have parts printed by this technology, which means the popularization of the technology of "3D printing".