Step 1

Receive the image file

1: The sales staff needs to ask the customer for 3D drawings in common formats such as STP, PRT, STL, etc. It is convenient for engineers or programmers to open documents with common software such as Pro/E, UG, and SolidWorks

2: Use JPG or Office format to add files to clarify the process requirements, if there are renderings, it is more convenient to achieve the original scheme designed by the customer at one time

3: The silk screen file needs to be provided in CDR, AI and other formats for making film outlet boards

4: For orders with a large number of parts for the assembly of the whole machine or the number of parts, it is necessary to provide a BOM list and indicate the specific production requirements of each part, so as to reduce unnecessary communication and improve production efficiency in the production process

Step 2

Review the image file

1: The engineer or programmer preliminarily reviews the drawing file, checks whether there is interference, broken surface, missing parts, etc., and negotiates with the customer to solve the problem in time

2: Analyze the process description and confirm the feasibility

3: Check whether the BOM list is consistent with the 3D drawing file provided, and whether there are any missing parts

4: According to the list of documents, estimate the delivery time and cost of production

Step 3

Business negotiations

1: The customer signs and keeps the file after confirming that the drawing is correct, and if there is a change in the file, the update time is remarked

2: Manufacturers need to judge whether the design scheme can achieve the expected effect based on their own industry experience, and provide customers with solutions in a timely manner

Step 4

Picture file disassembly

1: Engineers or programmers disassemble complex parts (toolpath processing is not in place, equipment travel is limited, material specifications are limited, etc. are all factors that constitute parts that need to be split)

2: According to the product process, it is convenient to make CNC engraving and milling habits. Ensure that the appearance of the product is not affected

Step 5

CNC programming

1: The programmer writes the CNC engraving and milling path according to the existing drawing file or the split drawing file

2: Set specific parameters such as tool feed rate and processing speed according to material characteristics

3: Transfer the data data to the CNC machining center

Step 6

Prepare the materials

1: According to the programmer’s program list and process instructions, the warehouse receives the corresponding materials (special materials need to be purchased at the same time as the order is signed, so as not to affect the final delivery due to the procurement cycle)

2: The operator cuts the materials corresponding to the program list

Step 7

CNC machining

1: The operator carries out cutting according to the data transmitted to the equipment

2: Select the corresponding props and feed speed and other parameters according to the actual situation

Step 8


1: The processed parts need to check whether the toolpath is all processed, and whether there is any damage, deformation, etc

2: Do the quantity handover procedure with the next process (manual).

3: Save the list of completed programs

Step 9

Processed by hand

1: The manual personnel use special tools to prick and clear the corners of the structure that is not in place.

2: The disassembled parts are bonded and restored according to the original 3D drawing. Not exactly in place, almost so 3; After the bonding is completed, the coarse grinding is carried out, and then all the parts are trial-assembled, and the surface treatment is carried out after fully meeting the requirements.

Step 10

Grinding and polishing

1: According to the different materials of the parts, select the corresponding auxiliary tools for grinding

2: The most important thing in polishing is to grasp the lines, and if it is not handled well, it will change the appearance of the product

3: Most of the polishing is for acrylic materials (the transparent treatment of PC materials is different)

Step 11

Surface finish

  • Injection/plating/oxidation

1: According to the process instructions provided by the customer, according to the color plate or PANTONE number

2: Before oil injection, check whether the grinding effect of the parts meets the color requirements

3: For parts that need to be treated with other special requirements (rubber paint, crack paint, UV, etc.), the primer must be completely dry

  1. The parts that need to be plating need to be polished to achieve the best effect

5: Most of the parts that need to be oxidized are made of aluminum alloy, and the surface requirements can basically be achieved by machining (relatively speaking, special requirements are different)

  • Silk screen printing/laser engraving

1: According to the effective picture file provided by the customer, make film and screen version

2: Silk screen printing according to the renderings

3: Laser engraving (also known as laser marking) according to the requirements of the drawing file

QC testing

(Most companies are not perfect in this link, or even not, in fact, this link is also very important)

Step 12

  • Finished product assembly

1: Ensure the integrity of all processes and processes

2: Assemble with reference to the 3D drawing

3: After completion, it will be transferred to the quality department

Step 13

Final inspection

1: Inspection and acceptance (size, appearance, whether the gap of the assembly effect is uniform, whether the movable structure interferes)

2: The quality department issues a test report (8D report, depending on customer requirements)

Step 14


1: Select the corresponding packaging materials and cartons or wooden boxes according to the characteristics of the parts

2: Ensure the beauty of the finished packaging

3: Do a good job of protective measures for fragile products to prevent crushing or deformation

Brief summary:

Prototype has always been considered a sunrise industry, the development of the industry has its own advantages, the direct reason is that today’s enterprises continue to increase investment in product research and development, and the indirect reason is related to the development of domestic social economy.

The above is a summary of the basic knowledge and ultra-detailed analysis of the prototype proofing industry introduced by MFGPROTO, hoping to provide you with reference.

MFGPROTO, focusing on one-stop 3D printing processing services, has 100+ 3D printers, providing a variety of materials, 3D printing services with up to 0.05mm accuracy, prototype molds, 3D printing animation figures, 3D printing architectural models, 3D printing portraits, 3D printing sand table models and other printing services. This article is

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