CNC Machining Tips To Make Automotive Prototypes

The Automotive industry is becoming more challenging day after day and leaving the concern people for both automotive engineers and auto prototype manufacturer into a situation to work hard and design something more creative and unique to stay competitive in the market. If you have new ideas and creativity in thoughts related to a new car layout idea or you know you may make some changes in the existing design of the car, you need to focus on automobile prototype – a way to visualize your imagination through either CNC machining (Computer Numerical Control) or rapid prototyping techniques.

Want to know how we use CNC machining to create automotive prototypes, you may visit the website:

What is CNC Machining?

CNC Machining (called Computer Numerical Control Machining) is the automated removal of material by milling or turning, from a plastic or metal block resulting in a finished part. The process, known as subtractive manufacturing, is controlled by a computer program of custom design and executed through the use of the cutting tools in different radius.

What are the advantages?

CNC machined parts greatly promote the development of creative designs, through both the aesthetic model and functional testing. Usually, quick-turn CNC machining enables to create end-use components of rapid prototyping and low-volume. Here are complete common engineering-grade thermoplastic and metal materials. Compared with traditional machine shops, professional guides and short machining time help you stay ahead of schedule.

CNC Machining Is Great Suitable for Car Parts Prototyping

CNC machining is a subtractive manufacturing technology while an additive manufacturing technology is an additive manufacturing technology. Both CNC machining and 3D printing are exceptional tools in the arsenal of an auto engineer when they want to create their design work in reality. Their unique benefits make each more suitable for different situations though. Choosing 3D printing over CNC car parts makes sense when you need: a low-cost plastic prototype; parts with very complex geometry; a turnaround time of 2-5 days; and special materials.

  1. Car Engine System

CNC auto services cover from the interior to exterior parts, and especially, CNC car parts play an important role in the car engine system and the lighting system. When it comes to making s car’s combustion engine, CNC machining is a good solution to create important components.

2. Automotive Lighting System

Besides aluminum profile as one of the important materials for CNC auto parts, clear materials like acrylic glass (PMMA) are essential to the automotive lighting system.

The clear optical parts of the car headlamp and rear lamp mostly are made of PMMA. Usually, there are two distinguished areas on the optical parts, the highly polished transparent area, and the critical optical details. The machining difficulty is to control the tight tolerance with minimum radii at critical optical details. This can only be achieved by advanced CNC machines, like continuous 5-axis CNC machines.


The CNC machining is favored by automotive manufacturers out of their needs in high accuracy and precision, cost-effective purpose, design presentation in a short time, etc… And the machining capability varies from different CNC machines. For example, equipped with 3-axis CNC and continuous 5-axis CNC machines, Wayken’s CNC prototyping service is advanced in the prototype manufacturing industry. Wayken is capable to control the tightest tolerance within +/- 0.001’’ to +/- 0.0002’’ (+/- 0.025mm to +/- 0.005mm) for CNC auto parts, which is essential for future mass production run.

RJ Frometa
Author: RJ Frometa

Head Honcho, Editor in Chief and writer here on VENTS. I don't like walking on the beach, but I love playing the guitar and geeking out about music. I am also a movie maniac and 6 hours sleeper.

About RJ Frometa

Head Honcho, Editor in Chief and writer here on VENTS. I don't like walking on the beach, but I love playing the guitar and geeking out about music. I am also a movie maniac and 6 hours sleeper.

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