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Custom 3D Printing Solutions
At Lewei, Get 3D printed prototypes and production parts of high precision, delivered with rapid turnaround times. With the latest technologies, we guarantee high quality products whether in the small batches or the large scale production. tart your project today and receive an instant quote!
- Achieve tolerances as fine as ±0.001 inches for flawless parts.
- Get your parts as quickly as 1 day with expedited lead times.
- ISO 9001:2015, AS9100D, ISO 13485, and ITAR compliant manufacturing for trusted results.
Upload your CAD files today and receive your instant quote!
Customized 3D Printing Services.
In Lewei Precision, we are experts in complex 3D printing in order to satisfy your special project needs. Be it the need to acquire high-quality, precision parts in large volumes, or the need to process them at very quick turnaround times, our solutions provide high-quality results. Discover our potential in 3D printing services and discover the right process to use.
SLA has high-resolution 3D printing with smooth finishes that are perfect when it comes to detailed prototypes and complex designs. Ideal in those assignments with high accuracy and smooth appearance.
HP MJF is intended to be used in producing high-speed parts of high strength. This technology is very good in manufacturing parts with high mechanical properties and details that are complex enough to be used in functionality.
SLS is a powder that is used to create very powerful and strong parts. It is ideal in complex geometries and functional components and works best in end-use applications.
SLM applies laser to liquefy metal powders to create metal components with high strength. This method is perfect in aerospace, medical and industrial applications because it is long-lasting and precise to use under harsh conditions.
How Lewei Precision’s 3D Printing Services Work
Lewei Precision works with an international system of hi-tech 3D printing capability to provide both small-volume prototypes and mass-volume production components. The parts are manufactured with high dimensional accuracy and visual quality and done in a layer-by-layer printing process. Each custom 3D printed part will be carefully checked according to the requirements of your specific project, which gives consistent output of all of your projects.
3D Printing Materials
We offer a wide range of materials, including plastics like ABS and PA (Nylon), as well as metals such as Aluminum and Stainless Steel, perfect for diverse industrial 3D printing applications. If you have specific material needs, select ‘Other’ on our quote configuration page, and we will source the exact material you require.
As machined, Anodizing, Powder coating, Electroplating, Painting, Sand blasting, Polishing
Copper is highly conductive and malleable, making it a top choice for electrical wiring and plumbing. Its natural antibacterial properties also make it ideal for medical applications, while its aesthetic appeal suits decorative items and artwork.
Red-orange
Copper C101(T2), Copper C103(T1), Copper C103(TU2), Copper C110(TU0), Beryllium Copper
As machined, Polishing, Sand blasting, Tumbling, Electropolish, Alodine, Heat treatment, Black oxidize, Electroless nickel, Chrome plating, Brushed finish
$$$
About 5 business days
Bronze, an alloy of copper and tin, is known for its durability and resistance to corrosion. It’s widely used in marine applications, sculptures, and bearings, thanks to its strength and ability to withstand harsh environments.
Metallic brown
Tin Bronze
As machined, Polishing, Sand blasting, Tumbling, Electropolish, Alodine, Heat treatment, Black oxidize, Electroless nickle, Chrome plating, Powder coating, Brushed finish
About 5 business days
Steel is a strong and versatile material, widely used in construction and manufacturing. Its high tensile strength makes it suitable for structural components, while various Subtypes enhance its properties for specialized applications, like tools and machinery.
Silver Grey
Steel 1018, 1020, 1025, 1045, 1215, 4130, 4140, 4340, 5140, A36, Die steel, Alloy steel, Chisel tool steel, Spring steel, High speed steel, Cold rolled steel, Bearing steel, SPCC
As machined, Electroplating, Passivation, Powder coating
About 7 business days
Stainless steel is resistant to rust and staining, making it perfect for kitchen appliances and medical equipment. Its strength and aesthetic appeal also make it a popular choice for architectural designs and automotive parts.
Silver Grey
Stainless Steel SUS201, SUS303, SUS 304, SUS316, SUS316L, SUS42, SUS430, SUS431, SUS440C, SUS630/17-4PH, AISI 304
As machined, Electroplating, Passivation, Powder coating
ABout 7 business days
Magnesium is lightweight yet strong, often used in aerospace and automotive applications where reducing weight is critical. Its machinability allows for complex shapes, and it’s also utilized in various electronic devices for its excellent conductivity.
White-silver
Magnesium Alloy AZ31B, AZ91D
As machined, Polishing, Sand Blasting, Tumbling, Alodine, Heat treatment, Anodizing, Teflon coating, Electroless nickel, Painting, Powder coating, Electrophoresis
ABout 8 business days
Titanium is incredibly strong and lightweight, making it ideal for aerospace and medical implants. Its resistance to corrosion and biocompatibility enhance its use in demanding environments, while its high strength-to-weight ratio suits various industrial applications.
Titanium Alloy TA1, Alloy TA2, Alloy TC4/Ti-6Al 4V
As machined, Polishing, Sand Blasting, Tumbling, Electropolish, Alodine, Anodizing, Electroless nickel, Painting, Powder coating, Brushed finish
ABout 8 business days
3D Printing Tolerance
| Feature | Typical Tolerance | Engineer Reality Notes |
|---|---|---|
| Hole Diameter | ±0.20–0.30 mm | Holes almost always print undersized |
| Hole Position | ±0.20 mm | Cumulative error across layers |
| Flatness | 0.30 mm / 100 mm | Large flat faces warp |
| Wall Thickness | ±0.15 mm | Thin walls amplify variation |
| Surface Finish (Ra) | 6.3–12.5 µm | Depends heavily on layer height |
| Threaded Features | Not recommended | Print + tap for accuracy |
3D Printing Surface Finish Options
Lewei Precision provides numerous surface finish options to increase the quality, durability and the appearance of your 3D printed components. Our services can be used to fulfil your personal project requirements, whether it involves a smooth finish, protection, or a unique texture.
As-machined finishes leave the raw, rough texture preferred in functional prototypes or inside parts. It’s an ideal choice when aesthetics aren’t a priority but precision is
Painting forms not only some color to your parts but also offers protection to them. Choose from a range of finishes to enhance your part’s visual appeal and durability for end-use applications.
Our polishing service reduces roughness, leaving your parts with a smooth, glossy finish, ideal in parts where the customer sees it, or the part that needs an exceptional finish.
Anodizing offers durable and corrosion-resistant surfaces to metal components. This process also allows for vibrant color options, adding both strength and a polished look to your parts.
Add electroplating to your 3D printed parts to enhance their strength, wear resistance, and conductivity. Most suitable in parts needing better durability and electricity capability.
Texturing gives your parts a custom pattern that improve grip as well as giving them a personalized look. Ideal in components that require an increased level of tactile characteristics.
3D Printing Tolerances
| Parameter | Specification |
|---|---|
| General Tolerances | ±0.2 mm for metals / ±0.5 mm for plastics |
| Tight Tolerance | ±0.05 mm |
| Surface Finish | Ra 3.2–0.8 μm |
| Maximum Build Size | Varies by process (up to 1400 mm) |
3D Printing Services
At Lewei Precision, we provide 3D printing solutions (made to your specifications) to suit your production processes, such as rapid prototyping or mass production. Services offered by us have fast turnaround times, high accuracy, and quality.
3D Printing
Quickly move from design to prototype with our rapid prototyping service. We also use the latest tool of 3D printing to provide high-resolution and precise parts to validate designs and test them.
- Lead time: 1–5 Days
Vacuum Casting
Our low-volume production service is ideal when using emerging products where quality is to be maintained as well as speed of delivery and it is ideal in market testing and when approaching small to medium quantity production.
- Lead time: 5–15 Days
Injection Molding
For high Volume, we have the mass production capacity that can offer efficient and accurate parts and still be of high quality and tight tolerance where it would be needed.
- Lead time:2–4 Weeks
Lewei Precision 3D Printing Capabilities
We offer a detailed guide to each 3D printing process, highlighting its unique standards to help you make informed decisions for your printing requirements.Our CNC machines operate with precision tolerances that meet industry standards, ensuring that every part is consistently accurate and fits perfectly with other components.
Feature | SLA | MJF | SLS | SLM |
Min. Wall Thickness | 0.6mm for unsupported walls, 0.4mm for supported walls on both sides | At least 1mm thick; avoid overly thick walls | From 0.7mm (PA 12) to 2.0mm (carbon-filled polyamide) | 0.8 mm |
Layer Height | 25 µm to 100µm | Around 80µm | 100–120 microns | 30 – 50μm |
Max. Build Size | 1400x700x500mm | 264x343x348mm | 380x280x380mm | 320x320x400mm |
Dimension Tolerance | ±0.2mm (For >100mm, apply 0.15%) | ±0.2mm (For >100mm, apply 0.25%) | ±0.3mm (For >100mm, apply 0.35%) | ±0.2mm (For >100mm, apply 0.25%) |
3D Printing Materials
Our 3D printing services support industry-standard polymers and metals used across prototyping and low-volume production.
Material selection depends on printing technology, strength requirements, and end-use application.
Lightweight metal used for functional prototypes and production-grade parts.
Grades
AlSi10Mg
High-temperature nickel alloy for extreme operating environments.
Grades
Inconel 718
Hard, wear-resistant alloy used in medical and high-stress applications.
Grades
CoCr
Strong and corrosion-resistant for industrial and functional components.
Grades
316L
17-4 PH
High strength-to-weight ratio with excellent corrosion resistance.
Grades
Ti-6Al-4V
Plastics
Tough plastic suitable for functional prototypes and enclosures.
Grades
ABS
Flexible material for elastic and impact-resistant components.
Grades
TPU
Easy-to-print material for visual models and basic prototypes.
Grades
Standard PLA
Balanced strength and flexibility with good chemical resistance.
Grades
PETG
Strong and durable material for mechanical and functional parts.
Grades
PA12
PA11
UV-resistant plastic suitable for outdoor applications.
Grades
ASA
High-detail material used for visual models and precision parts.
Grades
Standard Resin
Tough Resin
Engineering Resin
Fast Online 3D Printing Services
Need 3D printed parts in a hurry? Simply upload your 3D model files in formats like [.STP], [.STEP], or [.STL] for seamless processing. Our platform quickly analyzes your design to provide an instant, custom quote for optimal manufacturability.
Select from a wide range of materials and finishes, with guidance from our experts to ensure the best balance of cost, functionality, and aesthetics. Using high-resolution 3D printers, we bring your designs to life with exceptional precision. Every print undergoes strict inspection to ensure it meets your specifications. Enjoy fast delivery, with high-quality prints arriving as soon as the next day.
3D Printing for Diverse Industries
Lewei Precision provides custom 3D printing services tailored to meet the unique requirements of industries such as automotive, aerospace, healthcare, and more. We offer specialized solutions designed to address the specific needs of each sector, ensuring high-quality, precision parts for a range of applications
3D Printing Workflow - Our Process
At Lewei Precision, we ensure every part is produced with top-notch precision and quality. The efficient 3D printing we have is a guarantee that you will obtain your custom parts in a high quality, reliable, and timely manner.
Engineering Review
Upload your 3D design, and our expert engineers will assess it for manufacturability.We guarantee that your design is streamlined to performance, cost and speed of production.
3D Printing Process
Once your design get approved, we start the process of 3D printing it with the most suitable technology, either SLA or SLS, MJF or any other technology. This will make sure that your part is cut in the suitable material and accuracy.
Post-Processing
After printing we apply methods of surface finishing to enhance the part appearence and functional. We also perform strict quality checks in order to make sure it is of our high standards.
Inspection and Shipping
Each parts are then subjected to a last check in terms of dimension and general quality. Upon approval, it is well packed and delivered to your doorstep where you can use it up.
Why Choose Us
At Lewei Precision, we believe in providing the best 3D printing solutions to bring your ideas to life in a precise, fast and quality manner. You need quick prototypes, low volume production, or even complicated custom parts, we have the skills and means to take care of your unique needs.
Advanced Printing Technologies
Lewei Precision provides the latest 3D printing processes, such as SLA, SLS and MJF, according to the demands of your project.
Accelerate your product development with lead times as short as 1 day and get your 3D printed parts.
Produce high-precision 3D printed parts that allow a tolerance of as low as ±0.001 inches, guaranteeing quality and consistency.
What’s 3D Printing?
3D printing, or additive manufacturing, is an innovative technology that builds three-dimensional objects from digital files. The process adds material layer by layer until the final shape is achieved. Unlike traditional manufacturing, which often cuts away material from a larger block, 3D printing enables the creation of complex geometries and fine details with minimal waste. It’s widely used across industries, including prototyping, product development, medical implants, and aerospace. With its advantages in customization, speed, and cost-effectiveness, 3D printing is a key tool in modern manufacturing.
Comprehensive 3D Printing Quality Control & Inspection
At Lewei Precision, the quality and accuracy of each 3D printed component are our main concern. We will inspect all the parts to the highest standards of dimensional accuracy with the help of sophisticated inspection equipment, including CMM (Coordinate Measuring Machines), optical scanners, and digital micrometers. We are either ordering a prototype or a part that is production grade and this precision is ensured by our careful inspection process to ensure that you get the accuracy that you require in your 3D printing work.
Besides dimensional accuracy, we also comply with GD&T (Geometric Dimensioning and Tolerance) standards, which will guarantee that both dimensional and geometric accuracy conforms to ISO 2768-mK, and ASME Y14.5. We also perform detailed surface testing to verify Ra 3.2–0.8 μm roughness and confirm coating thickness. To provide full transparency, we offer comprehensive traceability through Material Certificates (MTRs), FAI reports, and CMM data sheets, ensuring that all your parts meet industry regulations and your specific needs.
Advantages
Benefits of 3D Printing
3D printing delivers distinct advantages over traditional manufacturing methods, with an unprecedented level of flexibility, speed and precision in its various applications.
- Tailored Solutions: Develop fully customized components to the unique design needs without the complexity and high cost associated with conventional ways.
- Advanced Design Freedom: Develop extremely complex design and structure, which become common to traditional manufacturing methods, and provide an opportunity to innovate.
- Efficient Material Use: 3D printing produces only the necessary material to print, not waste like in conventional subtractive processes, saving money spent on materials.
- Accelerated Prototyping: Haste the prototyping process into rapid design and concept validation and cut down on time to market as well as enhance product development lifecycle.
- Affordable for Low-Volume Runs: Ideal for small batch production, 3D printing eliminates the need for expensive tooling and molds, offering a cost-effective solution for limited runs.
- Faster Time-to-Market: Streamline the whole production process and provide faster iterations and shorter release times of new products.
Applications
Custom 3D Printing Applications
3D printing opens up a wide array of possibilities for industries by providing efficient solutions for both prototyping and final part production.
- Prototype Development: Rapidly convert design concepts into full-fledged prototypes, which can be tested and validated in the test of time.
- Specialized Tools & Jigs: Custom tools, fixtures, and production aids are made that enhance efficiency in the work flow and make operations precise.
- Healthcare Applications: Design customized medical instruments, such as implants and prosthetics, with superior capabilities in comfort and shape to the patient.
- End-Use Manufacturing: Manufacture quality, functional components to an assortment of industries, including automotive and aerospace, and make them ready to be used as final products.
- Architectural Design Models: Design elaborate architectural models in a manner that assists in visualizing the projects and simplifying the planning processes.
- Personalized Consumer Goods: Design and produce unique and customized products like personalized accessories, home decor and gifts that consumers desire to have unique items.
- Educational Tools: Create educational models for research, teaching, and hands-on learning, providing precision and detail for academic use.
CNC Machining FAQs
1. What are some of the parts that I can make using 3D printing?
Widely diverse parts can be produced using 3D printing, such as prototypes and special tools, as well as end-use parts. It is most suited in producing intricate geometries, functional components and quality prototype in all forms of industries such as automotive, aerospace, medical and consumer goods.
2. What is the average lead time of 3D printing services?
The 3D printing lead time is based on the design and the volume of production. Rapid prototypes are usually manufactured within 1-5 days and low-volume parts are usually manufactured within 5-15 days. In case of a large scale production, the turnaround time ranges to 2-4 weeks.
3. In what file formats do you accept 3D printing?
The 3D printing takes a host of file formats, such as STL, STEP, STP, IGES, OBJ, and 3MF. In case you are not confident in what format to convert to, our team might help you in converting your files so that they will be compatible with our 3D printing machines.
4. Which 3D printing technologies do you use?
We provide various advanced services of 3D printing, such as SLA (Stereolithography), SLS (Selective Laser Sintering), HP MJF (Multi Jet Fusion), and SLM (Selective Laser Melting). Every technology will be chosen depending on the requirements and material properties of your project.
5. What can I do to guarantee that my 3D printed parts are of my quality?
We conduct stringent quality tests in the production process which includes dimensional inspection by CMM and optical scanning and post processing of surface finish and durability. Our team will collaborate with you to ensure that the final product is what exactly you wanted.
6. What are the materials that can be 3D printed?
We do the wide range of materials, such as plastics, such as ABS, Nylon, and Polycarbonate, and metals, such as Aluminum, Stainless Steel, and Titanium. In case you need certain material needs, our team will assist in sourcing the appropriate material to your project.
7. Is it possible to have high-volume production by 3D printing?
It is true that with advanced automation and multi-axis capability, high-volume production can be conducted with the assistance of 3D printing. We can provide consistency and precision and deliver fast turnaround whether it is a batch of parts in the thousands or a batch of custom parts.
8. Can 3D printing be economical in small production batches?
Yes! 3D printing is a cheap technology to use when it comes to low volume production, as no costly tooling or molds are required. This is ideal on small batch production, prototyping or trying out the new designs before production.
9. In which industries do you offer 3D printing services?
We offer 3D printing to a diverse group of industries; some of them are automotive, aerospace, medical devices, consumer products and robotics and architecture. We offer customized solutions to both prototypes and final parts in both industries.
10. Do you offer post-processing services of 3D printed parts?
Yes, we have after processing services where we refine the finish and functionality of your parts. This involves polishing, painting, electroplating and smoothing to make your parts look as well as perform to your specifications.
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