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How to Orient Models in SLS 3D Printing for Stronger, Cleaner Results

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  SLS 3D printing is known for producing sharp, high-quality parts with impressive precision. But like all additive manufacturing processes, it’s influenced by gravity and heat during production. While selective laser sintering manages these challenges by using unsintered powder to support the part, orientation still plays a key role in determining part strength and surface quality. Even with the near isotropic properties of SLS, your parts will often be stronger along certain axes and weaker along others. Similarly, sharp edges and precise features will appear cleaner in one direction while slightly smoothed in another. Large parts must also be positioned carefully to avoid excess heat buildup, which can cause warping. Let’s look at why orientation matters and how to position your models for the best possible results from SLS 3D printing. Why orientation matters in SLS 3D printing Part orientation is often ignored during design but it directly affects print quality. Correc...
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Everything You Need to Know About Prototype CNC Machining

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  Design flaws cost time and missed details cost money. Prototype CNC machining helps you catch both before they cause delays and costly rework. Instead of waiting for tooling or settling for rough mock-ups, you get precision-machined parts made from production materials, giving you a clear read on how your design will perform in the real world. And it’s not just for testing. Prototype CNC machining also makes sense for short production runs when speed and accuracy matter more than volume. How CNC machining works for prototypes Prototype CNC machining combines computer-controlled manufacturing with rapid prototyping techniques, starting with a CAD or 3D model. The machine then uses cutting tools to shape the material precisely according to the design. This process produces parts with consistent quality, ensuring that each component matches the required specifications and performs as expected. Material options for CNC prototyping CNC machining works with various materials, ...
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China’s 3D Printing Companies Are Shaping the Future of Logistics

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  Few could have predicted how much 3D printing would evolve over 2 decades ago. Today, this technology is changing how products are made and delivered — thanks in large part to how 3D printing companies in China have scaled production and expanded access across industries. How 3D printing works 3D printing is an additive process that builds parts layer by layer using materials like plastics or metals. Unlike traditional subtractive methods that cut away material, 3D printing follows digital instructions to create complex shapes from the ground up. The result is a highly accurate part produced with minimal waste and maximum design flexibility. How 3D printing impacts supply chains 3D printing allows companies to reduce their dependence on external suppliers. For example, manufacturers in industries like agriculture can prototype and test new parts on-site, speeding up product development and reducing third-party risks. By simplifying production steps, 3D printing companie...
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The Rise of Industry 4.0 in China’s CNC Machining Sector

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  The manufacturing industry has always evolved through waves of innovation, changing how people work and produce goods. In the 19 th century, the first industrial revolution was driven by steam power and brought continuous mechanical energy that replaced much of the manual labor of the time. The second introduced mass production, while the third saw robotics reshape factory floors. Now, we’re going through the fourth industrial revolution or Industry 4.0, and at its heart is the Internet of Things (IoT), where machines, people, and processes connect through data. Information can be shared and applied instantly because of this real-time connectivity, making production faster and more efficient. For a China-based CNC machining parts manufacturer like us, Industry 4.0 translates into advanced systems that achieve high accuracy and adjust results in real time using live data. Smarter automation Even though automation drives Industry 4.0, its purpose isn’t to eliminate human inp...
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Is China Still the Best Choice for Rapid Tooling in 2025?

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  Steel tariffs in the US recently doubled from 25% to 50%, putting additional pressure on injection molders who are already facing tight margins. For engineers and designers worldwide, this change further reinforces China as the most practical choice for rapid tooling in 2025 and likely for years to come. Businesses can accelerate projects and control costs by working with a trusted rapid tooling partner in China. Let’s take a look at the factors that are making China a leader in rapid tooling services today. Quick look: Why choose China for rapid tooling in 2025?   ✅ Costs 30% to 50% lower than Western prices ✅ ISO-certified quality systems ✅ Strong supplier networks that shorten lead times ✅ Scalable capacity from prototypes to large production runs ✅ Access to advanced processes and continuous innovation ✅ Flexible production volumes, delivery schedules, and customization Save money Even before the tariff hike, steel tools from rapid tooling com...
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Factors That Make the Best Prototype Companies Stand Out

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  Are you looking for prototype companies that can take your idea from design to a functional part? You need a specialist who can turn your concept into a working model quickly and cost-effectively. Ultimately, the company you choose will directly affect the quality and cost of your project, as well as how successfully you bring your product to market. China is home to many prototype companies, but not all of them have the capacity and expertise to use multiple manufacturing methods to meet different needs. HLH Prototypes is different.   We’ve supported clients worldwide in developing commercially viable products and scaling them toward production. How do you know if you’ve found the right partner? Here’s what you need to look for to help you evaluate your options and choose a team that aligns with your goals. Quick look: How to evaluate prototype companies ✅ Industry experience in your sector ✅ Ability to take designs from prototype to production (turnkey solutions)...
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How SLS 3D Printing Paid Off for Small Biz

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  Selective Laser Sintering (SLS) has a reputation for being out of reach for smaller companies, but that’s changing. While SLS 3D printing was once seen as a tool only available to large manufacturers, it’s now becoming more accessible and practical for small businesses looking to improve how they develop and produce parts. This article highlights how SLS technology works and how it compares with other 3D printing methods. If you’re a small business owner, we’ll also show you how you can benefit from it. What sets SLS apart from other 3D printing methods SLS uses a laser to fuse powdered materials — usually thermoplastics like nylon — into solid parts, layer by layer. It can also be used with composites that include glass particles. Unlike FDM (Fused Deposition Modeling) or SLA (Stereolithography), SLS 3D printing doesn’t require support structures during printing. The unused powder supports the object during the build, so there’s no need for additional material that has...
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