Duochuang has been engaged in prototype fabrication for 16 years.and often deals with a variety of customers. Generally, customers will provide 3D drawings when inquiries , But a few customers don't understand why they need to provide 3D drawings? Following the Duochuang prototype introduce you will know the answer.

There are three kinds methods for prototype fabrication, such as CNC machining, 3D printing and Vacuum casting.Although the working principle is different, but the premise of processing must have 3D drawings.

1.CNC machining:   CNC machining is the basic principle of numerical control lathe feed processing route tool from the knife point movement began fixed origin (or machine), until the end of back to that point and the route processing program, including cutting paths and cutting tool cut, cut out of the empty travel path, the path set is set according to 3D drawings.

2. 3D printing: The3D printing is a kind of digital model file based on the use of special wax, powder metal or plastic and other adhesive materials by printing layers of adhesive materials to create three-dimensional objects.The principle of 3D printer is that input the data into a 3D printer and the machine prints it out one layer at a time.

3. Vacuum casting: Vacuum casting technology is to use the original edition in the state of vacuum condition of silicone molding, and in the state of vacuum PU material for pouring, so a So as to clone the same copy of the product prototype.The prototype of Vacuum casting is processed by CNC machining or 3D printing, so 3D drawings is also required for vacuum casting.

In conclusion, No matter CNC machining, 3d printing or vacuum casting is used to prototyping making, The 3D drawings need to be prepared in advance. If there is no 3d drawings that professional prototype manufacturers can be consulted.