xiehe model

If the rapid prototyping of hand-board production is skilled in technology, it will be a major breakthrough, and the efficiency of hand-board production will have a qualitative leap. Then what problems does the hand-board model rapid prototyping technology face? Most of the problems come from the development level of the technology itself. Next, The Concorde prototype processing factory will briefly introduce to you what problems will be faced in the rapid prototyping of prototype production.

1. Accuracy problem

At present, the accuracy of rapid prototyping parts is generally at the level of ±0.1 mm, especially in the height direction. The basic principle of rapid prototyping technology determines that the process is difficult to achieve the surface quality and precision indicators that traditional machining has. Integrating the basic forming ideas of rapid prototyping with traditional mechanical processing methods and complementing each other's advantages is an important method to improve the precision of rapid prototyping one.

2. Software problem

At present, the layered slicing algorithm used by the rapid prototyping system is converted based on the STL file format, which uses a series of triangular meshes to approximate the data files of the CAD model. However, this data representation method has many defects, such as triangular meshes. There will be some gaps in the grid, resulting in data loss, and the step effect caused by plane layering, which also reduces the surface quality and forming accuracy of the part.

In this regard, efforts should be made to develop new model slicing methods, such as feature-based direct model slicing method and surface layering method, that is, directly slice the CAD model without converting STL format files, and obtain the cross-sectional contours of the model. Or use the layer-by-layer slicing data obtained by reverse engineering to directly drive the rapid prototyping system, thereby reducing the error caused by the approximation of the triangular surface and improving the forming accuracy and speed.