3D printing and CNC machining offer distinct advantages for those looking for Rapid Prototyping making and iterative design. Justway can offer both, but it's important to understand the difference between what the two technologies have to offer.
Most people with a basic understanding of manufacturing technologies know that 3D printing and CNC machining are two drastically different methods. 3D printing, also known as additive manufacturing, allows for the iteration of CAD designs by building them layer by layer. On the other hand, computer numerical control (CNC) machining is a subtractive manufacturing technology, which means it generates 3D models by cutting away from solid blocks.
Justway offers the option to choose between these two production methods, but which one is more suitable for your specific application? It's important to understand the capabilities of each technology so that you can optimize your design to make the most of the prototyping process.
3D Printing vs. CNC Machining: Techniques used for prototype production
When designing prototypes between 3D printing and CNC machining, several factors need to be considered. For example, additive manufacturing allows for the production of complex geometries that would be impossible or too expensive with traditional techniques. In cases where quick turnaround time is required, 3D printing is also an ideal choice, which is why many prototyping companies can produce and deliver 3D printed parts within a matter of days.
For determining whether you should use 3D printing or CNC machining, the factor to consider is production volume. Using additive manufacturing for prototype production is cost-effective when you need to produce in small quantities at an affordable price. On the other hand, CNC machining offers cost-effectiveness at a slightly larger scale. If the quantity exceeds 100 units, we recommend considering vacuum casting or precision casting.
For prototype models that require high functionality and need to withstand significant stress or strain, CNC machining is the more viable technology. Generally, CNC machining offers higher dimensional accuracy and utilizes materials with better mechanical properties compared to 3D printing. However, CNC services are typically more expensive, so cost and quality must be weighed when making this decision. Additionally, if you require custom designs and the production of different parts, 3D printing remains the more efficient manufacturing technology to date.
In summary, when you need low-cost prototypes in small quantities, 3D printing is the better choice, especially in cases where the design is complex and customization is required. CNC machining is the preferred method for producing high-strength prototype models due to its repeatability, high precision, and comprehensive surface finish.
(Plastic prototype model made using CNC machining)
Justway's Advantageous Dual Services
Of course, if you are struggling with the decision between CNC machining and 3D printing, you can always consult with a rapid prototyping service company. Justway's prototype manufacturing service is composed of an expert team that can assist you in determining whether to use CNC machining or 3D printing for production.
Justway offers both stereolithography (SLA) and selective laser sintering (SLS), two vastly different 3D printing technologies for prototype manufacturing.
(Prototype model made using SLA 3D printing)
SLA 3D printing is a process based on UV-curable resins and is most advantageous for rapid prototyping or master model production for manufacturing polyurethane castings. SLS technology does not use high-powered lasers to cure resins like SLA does but instead employs lasers to sinter powdered materials into solid parts.
For functional prototypes, SLS is the preferred choice due to the mechanical properties of nylon materials. Unlike the epoxy resins used in SLA, SLS materials are stronger and typically have better chemical resistance, high-temperature resistance, and wear resistance.
(Prototype model made using SLS 3D printing)
If you choose to use CNC machining for prototype design instead of additive manufacturing, you have the option to produce in either plastic or metal. This process is often used when the prototype needs to replicate the functionality and aesthetics of the final product or part.
Now that you are aware of the basic differences between 3D printing and CNC machining and the advantages of each, it will be easier to choose which manufacturing technology to employ for bringing your design into production.
If you still need assistance or would like to learn more about Justway's prototype manufacturing services, you can contact us through the provided contact information below!
