SLA
3D Printing Services

Name: SLA 3D Printing Service Services
Brand: RapidDirect
Rating: 4.9 (270 reviews)

Get instant online 3D printing quotes for plastic and metal parts.
Rapid 3D printing services from prototype to production with fast lead times.

Tolerances as fine as ±0.2 mm.
ISO 9001:2015, ISO 13485, ISO14001:2015, IATF 16949:2016 certified
Lead time as fast as 1 day

Start a New 3D printing quote online

Drag and drop file or click to upload

STEP | STP | STL | IGS | IGES | PRT | SLDPRT | SAT | X_T
Max. file size: ≤15MB

App Link

Max Dimension

250×250×400 mm

Layer Thickness

0.5 mm

Tolerances

ISO 2768-C

Wall Thickness

0.5 mm

Min Feature Size

0.5 mm

Surface Finish Options

Brushed Finish, Satin, Shot Peening, Electropolishing, Polishing, CNC, Anodizing

Design Advice

Supports as Heat Sinks: In SLM, supports act as critical heat sinks to dissipate intense laser heat. Design parts with overhang angles greater than 45° to minimize supports, and ensure thick sections are anchored to the build plate to prevent warping.
Self-Supporting Internal Channels: For internal cooling channels or holes larger than 8 mm, use teardrop or diamond shapes instead of circular ones. This geometry allows the feature to be self-supporting, ensuring easy removal of unfused powder.
Minimum Wall Thickness & Fillets: Maintain a minimum wall thickness of 0.5 mm for functional features. Avoid sharp internal corners by adding fillets (minimum R 0.5 mm) to distribute stress and prevent cracks caused by rapid heating cycles.

SLM 3D Printing Materials

Our material selection includes plastic and metal options like ABS, PA (Nylon), Aluminum, and Stainless Steel, suitable for various industrial custom 3D printing projects. If you have unique material requirements, simply choose ‘Other’ on our quote configuration page. We’re committed to sourcing exactly what you need.

PLASTICS

ABS-Like Resin

ABS-Like Resin

ABS-Like Resin is a high-performance photopolymer engineered to bridge the gap between resin precision and industrial durability. Unlike standard brittle resins, it mimics the toughness and impact resistance of injection-molded ABS.

Color:	White
Price:	$$
Lead Time:	About 6 business days

Nylon-like Resin

Nylon-like Resin

Nylon-Like Resin is a high-performance photopolymer engineered to mimic the strength and flexibility of PA12 nylon. It features high elongation and exceptional fatigue resistance, allowing parts to bend and deflect without breaking.

Color:	Grey Black
Price:	$$
Lead Time:	About 6 business days

Purple Wax

Purple Wax

Purple Wax is a specialty castable photopolymer optimized for SLA and DLP processes. Formulated with a high wax content, it ensures a clean, ash-free burnout during the investment casting process.

Color:	Purple
Price:	$
Lead Time:	About 4 business days

Red Wax

Red Wax

Red Wax is a premium, high-resolution photopolymer optimized for SLA and DLP processes. Known for its exceptional surface quality and pigment stability, it is specifically designed to capture ultra-fine textures and sharp edges that other resins might lose.

Color:	Red
Price:	$$
Lead Time:	About 5 business days

Standard Resin

Standard Resin

Standard Resin is a versatile photopolymer optimized for SLA and DLP processes, prized for its exceptional surface finish and fine detail. It is available in a wide spectrum of colors, including Transparent (Clear), White, Black, Grey, Blue, and more.

Color:	White Black Grey Blue
Price:	$$
Lead Time:	About 5 business days

Global Manufacturing Network for 3D Printing

RapidDirect provides industrial-grade on demand 3D printing services supported by a global manufacturing network. Our production 3D printing capacity enables us to handle everything from rapid 3D printing prototypes to large-volume production parts with consistent quality.

With access to advanced industrial 3D printing equipment and standardized quality control systems, we support complex geometries, tight tolerances, and reliable lead times across multiple industries.

300+

Machines Set

120+

Countries Shipped

20,000+

Customers Served

RapidDirect
Online 3D Printing Service Solutions

3D Printing

Start your project with our rapid 3D printing service. Ideal for creating detailed prototypes and custom parts quickly, we use advanced technologies to deliver high-quality, high-resolution prints with precise tolerances.

Iterate and refine your designs rapidly to ensure perfect results.

Vacuum Casting

Our urethane casting service bridges the gap between prototyping and mass production. Perfect for low to medium-volume production, creating durable, high-quality parts with excellent surface finish and detail.

For market testing and initial product launches.

Injection Molding

For large-scale production needs, our injection molding service is the optimal choice. It is capable of producing high volumes of parts efficiently, maintaining consistent quality and precision.

Cost-effective process for mass production.

RapidDirect
3D Printing Capabilities

We provide a comprehensive overview of each rapid 3D printing process’s unique standards, aiding in informed decisions for your printing needs.

	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%)
Standard Lead Time	4 business days	5 business days	6 business days	6 business days
Surface Finish (Ra)	Normal: 3.2μm After polishing: 1.6μm	3.2–6.3μm (No secondary processing for nylon)	3.2–6.3μm (Polishing/grinding available)	3.2–6.3μm (Polishing/grinding available)

View RapidDirect 3D Printing Manufacturing Standards

rapid direct Platform

Get an Instant
3D Printing Quote Online

Upload your CAD files to get an instant 3D printing quote online. Our automated quoting system analyzes your design, material selection, and production requirements in seconds, providing transparent pricing and lead times.

As a professional online 3D printing service company, we support plastic and metal 3D printing for prototypes and production parts. Simply upload your STP, STEP, STL, or other 3D files to receive a custom 3D printing quote tailored to your project specifications.

3D Printing Service
for Various Industries

3D printing is ideal for precision assembly components (via as-machined post-processing) and high-aesthetic visual parts (via painting/polishing).

We provide industrial 3D printing services tailored to the requirements of regulated and high-performance industries.

Our experience spans automotive, aerospace, and medical applications—from prototyping to low-volume production.

Aerospace

Automotive

Automation

Medical Devices

Robotics

Consumer Products

Why
Choose Us

RapidDirect is a trusted provider of industrial 3D printing services, helping engineers and manufacturers produce high-quality parts with precision, speed, and reliability.

/01

High Resolution
3D Prints

Advanced materials, cutting-edge technology, and stringent quality control processes. This commitment results in quality product durability and precision, minimizing rework and enhancing your project’s success.

/02

Fast Turnaround 3D Printing

Streamlined processes and state-of-the-art equipment, addressing your urgent needs by delivering high-quality 3D printed items quickly. This efficiency reduces wait times, enhancing your project’s pace and productivity.

/03

Experienced 3D Printing Experts

We have team of experienced engineering experts providing personalized guidance for every project. Resolve complex design challenges, enhancing print success and customer satisfaction, according to your unique specifications.

What’s SLA 3D Printing?

SLA (Stereolithography) is a high-precision resin 3D printing process that uses an ultraviolet laser to cure liquid photopolymer resin layer by layer into solid parts. Known for exceptional surface finish and fine detail resolution, it delivers parts with smooth surfaces, sharp edges, and intricate geometries ideal for visual prototypes and high-detail applications.

Advantages of SLM 3D Printing

Online SLA 3D printing service has many advantages over traditional methods:

Ultra-high precision & fine details: Delivers industry-leading resolution, making it perfect for parts with fine features, thin walls, and complex geometries.
Excellent surface finish: Produces smooth parts with minimal layer lines, reducing the need for extensive post-processing.
Wide range of resin materials: Supports standard, tough, flexible, heat-resistant, and castable resins for diverse functional and aesthetic requirements.
Ideal for visual prototypes & master patterns: Creates high-quality models for design validation, marketing, and investment casting masters.

SLA 3D Printing Applications

Our online SLA 3D printing services offers a wide range of applications for different types of parts:

High-detail visual prototypes: Aesthetic models, concept designs, and presentation parts for product development.
Jewelry & casting patterns: Wax-like castable resin parts for jewelry investment casting and lost-wax processes.
Medical & dental models: Custom anatomical models, surgical guides, and dental molds for planning and education.
Consumer products & figurines: Detailed collectibles, figurines, and custom consumer goods requiring high resolution.

FAQs

What are your tolerances for 3D printing?

Standard tolerance is ±0.2mm (with scaling for large parts), and an upgraded process offers ±0.05mm precision for select technologies.

3D printing can achieve remarkably high levels of accuracy, ensuring that your parts meet stringent specifications. At RapidDirect, our standard tolerance for 3D printing is ±0.1mm. However, the exact tolerance can vary depending on the complexity and design of your part. For highly detailed or intricate components, tolerances might need to be adjusted to ensure optimal results. To provide you with the most accurate assessment, you can upload your 2D design files through our platform. Our expert team will evaluate your design and determine the specific tolerances required to achieve the best possible outcome for your project.

How long does it take to 3D print parts?

The time required to 3D print parts depends on several key factors, including part size, height, complexity, and the chosen printing technology. Larger or more complex parts naturally take longer to print than smaller, simpler ones. At RapidDirect, we understand the importance of fast turnaround times. Leveraging advanced 3D printing technologies and efficient processes, we can complete many 3D printing projects in as little as one day. For precise time estimates tailored to your specific project, you can upload your design files, and our team will provide a detailed timeline based on your unique requirements.

What’s the maximum size of the 3D prints?

It depends on the specifications of the 3D printer used. At RapidDirect, we offer a wide range of 3D printing machines to accommodate various sizes and requirements.

Large Format FDM Printers: Capable of printing up to 36 x 24 x 26 inches, ideal for large parts and prototypes.
Large SLA Printers: Can produce prints up to 29 x 25 x 21 inches, perfect for high-detail and smooth-surface applications.
SLS Printers: Unfilled SLS machines have a maximum build dimension of 13 inches, while glass-filled SLS machines can handle up to 26 x 15 x 23 inches.
Industrial Polyjet Printers: Offer a build area of up to 19 x 15 x 7 inches, suitable for high-resolution and multi-material prints.

This diverse selection ensures we can meet your project’s specific size and detail requirements.

What file format do you accept?

At RapidDirect, we accept a variety of file formats to ensure compatibility with our 3D printing systems. The recommended file formats are STEP (.stp) and STL (.stl), as they provide the best accuracy and detail. If your design file is in a different format, we advise converting it to either STEP or STL to ensure optimal results. These formats preserve the geometric data and intricate details necessary for precise and high-quality prints. Should you need assistance with file conversion or have questions about specific formats, our support team is always ready to help.

How much does your 3D printing service cost?

The cost of our 3D printing service depends on several factors. These include the type of 3D printer chosen, the size and design complexity of the model, the material used, and the volume of parts required. Larger and more intricate designs typically require more resources and time, influencing the overall cost. Material choice also plays a significant role; different materials vary in price based on their properties and suitability for specific applications. At RapidDirect, we provide detailed quotes tailored to your project’s specifications. Understanding these variables helps you manage capital effectively while achieving high-quality results.

How can I choose a 3D printing technology?

Choosing the right 3D printing technology depends on your project’s specific requirements. Consider factors such as the desired material, part complexity, surface finish, strength, and budget. For high-detail and smooth finishes, SLA is ideal. For strong, functional parts, SLS or HP MJF might be better suited. FDM is great for large, durable parts at a lower cost, while SLM is perfect for high-strength metal components. Consulting with our 3D printing experts can help you make an informed decision. Provide your design specifications, and we’ll recommend the best technology to meet your needs efficiently and cost-effectively.

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SLA
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