Why need CNC Machining Rapid Prototyping?

CNC Machining Rapid Prototyping

CNC Machining Rapid Prototyping

CNC machining is a widely used method for prototyping in various industries. Machinists employ CNC rapid prototyping when the design of an object needs to be changed before it goes into mass production.

It can be used to resolve any issues that develop during the manufacturing process, which is critical for minimizing delays.

In combination with other or alone processes like 3D printing, CNC machining can manufacture several iterations of a single CNC prototype at a fraction of the cost of traditional prototyping methods like injection molding, which can take over 100 hours just for the initial setup!

 Today’s article will look at how CNC machining could be an essential part of the rapid prototypes process. Also, check out the other articles we wrote in CNC Machining Good of all parts, be it CNC machine or CNC milling. 

What is CNC machining rapid prototyping?

CNC machining (Computer Numerical Control) is a method of production that combines computer inputs with computer-controlled machining tools. CNC machine provides digital design for the vast majority of the final product. 

The required rapid prototyping is created using computer-aided design (CAD) software. These CAD designs are then translated into instructions that computer-controlled production machines can understand.

The term “G-code” is used to refer to these instructions. After the G-code runs, the CNC operation requires little to no oversight. It can also create prototype parts to very specific specifications, not an insignificant amount but in a low cost.

CNC machining, in other words, is a subtractive manufacturing process that also takes complex internal geometries and can get plenty of material.

And we know it is quite different from traditional additive manufacturing processes. It refers to the removal of material from a workpiece, which is a block of material, by computer-controlled machining equipment.

CNC Machining Rapid Prototyping

Reasons to Use Rapid Prototyping 

In reaction to advancements in manufacturing technology, rapid prototyping was initially conceived in the 1970s. Traditional prototyping was a bottleneck in the design process; therefore, this is a solution to that.

Designers may experiment with a physical model without waiting a long time for it to be made using RP or in the final part.

Rapid prototype services have no setup or rapid tooling costs, which means that fresh iterations on a design may be generated rapidly and affordably in the final part. 

Rapid prototyping was redefined by introducing new additive and subtractive manufacturing methods like 3D printing and CNC machining. 

A new proof of concept model can be made using 3D printing instead of hand machining and injection molding, both sluggish and expensive.

In hours, you can print a prototype, and CNC prototyping can manufacture engineering prototypes in a comparable amount of time. CNC prototyping has a plethora of advantages and reasons to consider.

It is not inherently difficult to explain the benefits, so let’s take a deep dive to explore different material workpiece having different tolerances regarding a metal material prototype 


Product designers may rapidly and effectively incorporate testing results and comments into new iterations on the base design, thanks to the speed with which fast prototyping services can produce new functional prototypes.

There’s a large variety of materials to choose from.

The stiffness and melting temperature of the material that can be cut to shape in modern CNC machines have certain limitations.

As a result, CNC prototyping can use a wide range of materials in many industries, including aluminum, brass, stainless steel, copper, etc. 

As you can see, CNC machining allows you to use a wide selection of materials that aren’t available in traditional CNC milling.

When it comes to lots of sheet metal that can utilize to make engineering prototypes & Machined parts, it becomes particularly true. Because these require specific tolerances, metal 3D printing is not an option.

No Fix Tooling 

Unlike other traditional production methods such as die-casting or injection molding, CNC manufacturing processes do not require separate tools, dies, or molds.

Depending on the part’s complexity, manufacturing the necessary tools, dies, or molds for prototype production can take up to a month, which is not suitable for a rapid prototyping machining process.

Most current CNC machines come preloaded with a large selection of cutting inserts and milling equipment. These tools, on the other hand, can be easily switched in and out. 

As a result, both prices and lead times are dramatically reduced.

Consistency and quality of machining

Except for the occasional inaccuracy, CNC machining tools are incredibly accurate and consistent. These can grind forms to a fraction of a millimeter precision.

What’s more, you can repeat this process repeatedly without changing the outcome.

The interactive design and prototyping process requires high precision and consistency.

In response to feedback and testing, small changes to the design might be made. Also, those designs were created without changing any of the other dimensions.

Rapid Prototype Production is Easy to Modify 

Modern CNC machining services can turn out a product in only a few hours. As a result, they’re as quick as some 3D printing methods.

As a result, CNC prototypes are appropriate for items with short lead times. So, items could be brought to market more quickly and can modify quickly too.Changes in CAD design that happen quickly

One of the main advantages of modified prototyping is that it enables rapid design iteration. It is in response to testing comments.

It is especially true for CAD designs that are used to generate G-code for CNC machining.

The designer may be confident that the components’ dimensions will perfectly match the dimensions on the CAD file since CAD files are used to direct the computer-controlled milling machines.

When modifications are required, the designers or engineers can make them into a fresh version of the CAD file.

This means that the two design versions can be compared and even tested against one another using simulation software or tools. 

Worthy Hardware and Rapid CNC Prototyping

You may rapidly and effectively outsource your CNC prototyping needs to some of the greatest CNC machine shops in the world with Worthy Hardware.

With the Worthy Hardware Buyer Protection, you can get fast, expert feedback on your proposed design from skilled product engineers and order your parts with total confidence and peace of mind. We have all material certifications to meet your material requirements. 

Worthy Hardware can help you create mass prototypes faster. Get instant quotes! 

You only have one contract with us, and we manage shipping, payments, and legal agreements, saving you thousands of hours in administrative and operational work while also shortening lead times & a feed rate.

CNC machining aluminum prototypes


We’ve seen how CNC machining can be a great way to prototype. Indirectly, though, machining can be utilized to make injection molded prototypes.

Businesses can create the apparatus required for injection molding more cost-effectively by CNC machining tooling or molds.

This CNC machined tooling (including CNC turning, CNC Mill, CNC plasma cutting, CNC milling tools, etc.) can be produced faster than traditional tooling, making it a viable alternative to molded prototypes. (Traditional tooling methods may be used for the final molded pieces following the prototyping stage.)

When ordering large quantities of molded parts, the quick tooling method is significantly more cost-effective, as machined tooling is much more expensive to create than the molded resin parts themselves. Authentic molded prototypes will be more indicative of a molded part than, say, a 3D printed equivalent, despite the fact that huge quantities may not be desirable during the prototyping stage.

To find out whether CNC machining is the ideal prototyping method for your project, contact Worthy Hardware & get your rapid prototyping process. 

Worthy Hardware is a CNC manufacturing and sheet metal fabrication company, including CNC machining services, CNC milling services, CNC turning services, laser cutting services, and stamping services. Call us at +86-76989919645 or email us at [email protected] for more discounts on your projects.