3 D printing service is a type of additive manufacturing prototyping, which works by cutting models into N layers /N multipoints and then building them up layer by layer/bit by bit in order, like building blocks. Therefore, 3 D printing service can effectively process and produce complicated parts, such as hollowed-out parts, while rapid CNC prototyping can hardly process hollowed-out parts and precision parts.
Rapid prototyping CNC machining is a material reduction manufacturing, through the high-speed operation of a variety of tools, according to the programming knife cutting the required parts. Therefore, rapid prototyping CNC machining can only process the rounded Angle, with a certain degree of radian, rapid CNC prototyping can not directly process the inner right Angle , through wire cutting/spark and other processes to achieve. External right Angle CNC machining rapid prototype is no problem. Therefore, parts with an inner right Angle can be considered for 3 D printing service processing and production. About the surface, if the part surface area is more complicated, we will recommended to choose custom 3d prototyping printing, rapid CNC prototyping surface is time-consuming, and if the programming and operating master is not experienced enough, it is easy to leave obvious lines on the parts.
3 D printing materials mainly include liquid resin (SLA), nylon powder (SLS), metal powder (SLM), gypsum powder (full-color printing), sandstone powder (full-color printing), wire rod (FDM), sheet (LOM) and so on. Liquid resins, nylon powders and metal powders account for the vast majority of the industrial 3D printing market for 3d printing factory.
CNC rapid prototyping China has more choice of materials than 3 D printing service. General hardware and plastic plates can be processed by rapid CNC prototyping, and the density of forming parts is better than 3 D printing service.
There are few options for the surface finishing of custom 3 D printing design parts, which are generally polishing, painting, deburring and electroplating. However rapid prototyping cnc machining parts are grinding, spraying paint, deburring, electroplating, screen printing, pad printing, metal oxidation, radium carving, sandblasting and so on.
The advantage of CNC Rapid prototype can reflect the drawing information accurately, and the surface finishing of CNC prototype is high quality, especially after the completion of surface painting and screen printing, Like the really products.
High dimensional accuracy, Especial the SLA prototype, it can ensure the part's dimensional accuracy within +-0.1mm.
Rapid prototyping technology is not limited by the product structure and shape, any complex shape and structure, as long as there are CAD data, They can be easily completed, so as to personalized, customized to provide the possibility; And the rapid prototyping useful technology and rapid manufacturing technology, they don't need to do the injection molding, And achieve to no molding manufacturing, so that we can make the cost of new product development reduced to the traditional way of 1/3-1/5, shorten the cycle to 1/5-1/10.
In industry, the rapid prototype model is installable, which is also the advantage of prototyping. Because on a large level can be very intuitive to reflect the structure and rationality and equipment difficulty. In order to find the problem earlier, rapid prototype can find a way to eliminate the greater loss.