16 years one-stop China custom CNC machining parts factory
The VMT blog is dedicated to sharing our hard-earned knowledge in prototype manufacturing. We hope these articles will help you optimize your product designs and gain deeper insight into the world of rapid prototyping. Enjoy the read!
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2026 06 05 In this guide, we break down the thermal conductivity of aluminum across various popular aluminum grades, and you can gain some manufacturing and material choice and alternative suggestions. At the very end, we will also share a case study on how our factory helps clients perfectly balance precision tolerances, surface finish aesthetics, and strict thermal specs.
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VMT 2026 06 04 This article explains why that range matters, how machining and surface treatment work together to hit it, and what to put on the drawing to ensure the part you get performs the way your optical design assumes.
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VMT 2026 06 03 As a global China CNC machining parts manufacturer industry, China occupies an important position in this industry. In China, from rapid prototyping, to small batch manufacturing of CNC parts, to the production and surface treatment of batch processed parts, a scale has been formed. China's CNC machining parts have the core advantages of fast delivery, high quality and low price in terms of materials, technology, machinery, processing, etc., so they have attracted buyers from all over the world. This article summarizes how to choose a supplier suitable for domestic CNC machining parts.
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VMT 2026 06 02 From the appearance, both processes can give the metal surface a deep black color. However, for the inner wall of the lens barrel, which has strict requirements for light reflectance, the actual performance of the two differs in light absorption performance, dimensional change, and wear resistance, and they have different adaptability for lens barrels of different materials. In this guide, we will analyze the differences between the application of black anodizing and black oxide on the inner wall of the lens barrel, and help you determine which surface treatment process is best suited for your next optical project.
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VMT 2026 06 01 While many non-medical suppliers are capable of machining titanium alloys or PEEK, they often lack an understanding of medical-grade contamination control standards. Improper control of cutting heat or incorrect selection of cutting fluids can easily lead to material degradation or harmful residue contamination, causing the parts to fail biocompatibility testing. Furthermore, blindly pursuing high precision can skyrocket scrap rates and cause costs to spiral out of control; inexperienced suppliers struggle to find the balance between meeting medical tolerances and achieving cost-efficiency in mass production. Therefore, you need a reliable list of CNC medical parts manufacturers.
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VMT 2026 05 29 To ensure crisp, blur-free images with perfect center alignment, controlling the thickness uniformity and achieving a strict ±2μm precision for these thin-walled spacer rings is absolutely vital. This means that these critical components, which control the exact spacing between lens elements, need to undergo lapping. After all, relying solely on precision CNC machining makes it incredibly difficult to hit this tolerance level. The thermal deformation from cutting and the stress from clamping will inevitably compromise the final dimensions—disadvantages that lapping avoids.
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VMT 2026 05 28 If every lens element, the housing bore, and the sensor mount share this exact line with micron-level agreement(datums), the resulting image is sharp corner-to-corner. If they do not, the system suffers from soft edges, one-sided blur, or a tilted focal plane. In this blog, we will dive into the optical axis datum importance, and how to keep datum correct for CNC camera parts, and finally share a case study of how our factory successfully solves this problem for our clients.
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VMT 2026 05 26 For high-precision optical systems—such as automotive lenses, medical endoscopes, and semiconductor inspection equipment—the tolerances for both mechanical concentricity and optical centration (which is heavily dictated by mechanical precision) are exceptionally stringent. Mastering the methodologies to control concentricity within
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