After many customers hand over the drawings to the prototype factory, they want to know how the prototype factory carries out CNC prototype processing, so that they can follow up and understand the prototype model. Let’s talk about the entire process of CNC prototype processing in a prototype factory.

Consider the industry and prototype information of CNC prototype application

  • Common applications are: digital products, household appliances, medical equipment, model aircraft, auto parts, etc
  • Commonly used prototype materials are:
  • a. Plastics: ABS, PC, ACRYLIC, PMMA, NYLON, PA, POM, PP, etc.;
  • b. Metal materials: aluminum alloy, stainless steel, iron, copper, etc.

The processing technology of the Prototype Machine Shop

  • 3D printing

Now 3D printing can do appearance, structure and performance test prototypes.

Photosensitive resin selective curing rapid prototyping technology is suitable for making small and medium-sized workpieces, and can directly obtain resin or similar engineering plastic products. The photosensitive resin rapid prototyping machine has good surface quality, high system resolution and high molding accuracy, which can make appearance and structure prototypes well.

CNC machining

In the machining industry, CNC plays a great role and the technology is relatively mature.It’s in prototype machining. In prototyping. It also has good effect and accuracy, and the prototype processing means are considered first, but the cost is high. There are many materials suitable for prototypes, metal parts and plastic parts other than silicone and soft rubber.

CNC machining


Casting refers to the use of the original model, in the vacuum state to make a silicone mold, and in the vacuum state with PU material for pouring, so as to clone the same copy as the original model. It mainly produces plastic prototypes, but also silicone or soft rubber prototypes. It is characterized by no mold opening, fast molding speed, low production cost, one silicone mold can make about 20 plastic parts, suitable for small batch customization.

The main process of processing in the Prototype Machine Shop

  • Drawing review: After receiving the customer’s drawings, the processed drawings will be preliminarily reviewed.
  • Dismantling drawing: decomposition and assembly drawing, dismantling, and disassembly.
  • Programming: CNC programming language according to processing technology.
  • CNC lathe machining, machining, and removing the excess places on the material, so as to obtain the prototype of the product
  • Manual processing: the prototype that has just been processed from the machine needs to be done manually, because there is a front on the surface and so on.
  • Surface treatment: grinding, painting, polishing, silk screen printing, electroplating, laser carving, etc
  • Finished product assembly.
  • Quality inspection: After the QC department has tested that there is no problem, it can be packaged and shipped.
  • Packaging and shipment.


The above is an introduction to the whole process of CNC prototype processing in the handplate Prototype Machine Shop, I hope it will be helpful to you. CNC prototype machining quality is stable, processing accuracy is high, and the efficiency of mass production is very high, which is one of the most common processes for making prototype models now.

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