When we operate the 3D printer, we will face many problems, such as: model for rough, delicate molding there are a lot of small bumps. After numerous tests, we found that these problems are caused by materials used by 3D printers, ABS material forming of different models with varying degrees of damage.
Better ABS materials will help you use 3D printer to print a better model, the model can even make industrial tooling.
In addition to material issues, in the process of implementation of 3D printer model, fill settings is also critical, is not too high (best not to set to 100%), nor too low (best 30%), not to save fill material is set too low, too low can make you more harm than good. In order not to produce too much waste and improve the print rate, after you get the equipment, study the directions carefully, understanding of the software and the various parameters that you have enough.