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FAQs

Frequently Asked Questions About Our CNC Machining Services

General
CNC Machining
3D Printing
Molding
  • What are the advantages of choosing Sunnyhowe for CNC machining and manufacturing services?

    Our advantages include automated quoting, fast turnaround times (as quick as 1-2 weeks), and competitive pricing for both prototyping and production. We specialize in CNC turning, milling, and online machining services, working directly from your 3D CAD model to ensure accuracy and reduce errors.

  • How do I get an online quote for CNC machining services?

    Simply upload your 3D CAD file (such as STEP, IGES, or SLDPRT) on our website. You will receive an interactive quote within 24 hours with free design for manufacturing (DFM) feedback, no obligation required.

  • Do you offer CNC turning services and prototyping?

    Yes, we are a professional CNC turning service provider, offering both prototyping and low to medium-volume production. We work with various materials including aluminum, brass, and steel to create precision turned parts.

  • Is my design secure when I request a quote? Do you sign NDAs?

    Yes, we take data security seriously. All file uploads are encrypted, and we are happy to sign a Non-Disclosure Agreement (NDA) to protect your intellectual property upon request.

  • What industries do you work with for machining and manufacturing?

    Choose CNC machining for prototypes, complex parts, and low-volume production. It's fast and has no mold costs. Choose injection molding for high-volume production (typically hundreds or thousands of parts) where the per-part cost becomes very low after the initial mold investment.

  • What additional services do you offer besides machining?

    We provide end-to-end solutions including surface finishing (anodizing, plating, powder coating, painting), part assembly, and quality inspection to deliver ready-to-use products.

  • What is your typical delivery time for machined parts?

    For standard projects with complete drawings, parts can be completed and shipped in as little as 1-2 weeks. More complex parts may require additional time. We provide an estimated timeline with your quote.

  • What is CNC machining and how does it work?

    CNC machining is a subtractive manufacturing process where computer-controlled machines precisely remove material from a solid block (called a workpiece) using cutting tools to create a custom-designed part. It is ideal for metals and plastics.

  • What is the difference between CNC turning and CNC milling?

    CNC turning rotates the workpiece against a stationary cutting tool to create cylindrical parts (like shafts and bolts). CNC milling rotates a cutting tool to remove material from a stationary workpiece, creating complex shapes, slots, and holes.

  • Do you provide precision CNC machining services for aluminum?

    Yes, we specialize in aluminum CNC machining, including turning and milling. Aluminum is one of our most requested materials due to its excellent machinability, strength, and lightweight properties.

  • I need a local supplier. Do you offer CNC machining services near me?

    While our manufacturing facility is in China, we serve global clients with efficient online quoting and reliable international shipping. This allows us to offer high-quality parts at competitive prices, often making the total cost lower than local shops.

  • Do I need to provide a technical drawing for CNC machining?

    While not always mandatory for a quote, a technical drawing is highly recommended. It is essential for specifying critical features like threads, tolerances, surface finishes, and inspection criteria, ensuring you get exactly the part you need.

  • How can I design parts for CNC machining to save cost?

    To optimize cost, design with standard tool sizes in mind, avoid deep cavities and thin walls, add fillets to internal corners, and limit tight tolerances to only where they are absolutely necessary.

  • Are you a cheap CNC machining service without compromising quality?

    Yes, we provide cost-effective machining by leveraging our automated processes and efficient manufacturing base. We maintain high quality through strict quality control measures and certified manufacturing partners.

  • How do I reduce the cost of my 3D printed parts?

    You can reduce costs by optimizing your design: hollowing out large volumes, minimizing support structures, and choosing a printing technology (like FDM or SLS) that balances cost with your required material and finish.

  • How much does industrial 3D printing cost?

    The cost depends on the part volume, material choice (plastics or metals), printing technology, and any required post-processing. Upload your STL file on our site for an instant, accurate quote.

  • How do you ensure the quality of 3D printed parts?

    We partner with certified manufacturing facilities (including ISO 9001 and ISO 13485) and provide a standardized inspection report with every order. For larger orders, we offer First Article Inspection (FAI) services.

  • How do I choose the right 3D printing process for my project?

    The choice depends on your part's function and material needs. Use SLA for high-detail visual prototypes, SLS for durable functional parts without supports, and FDM for low-cost prototyping. Our engineers can help you decide.

  • How much does plastic injection molding cost?

    The cost involves three main factors: mold tooling (a one-time cost), material, and production time. For low-volume molding, we use methods like aluminum molds to significantly reduce your initial tooling investment.

  • Who owns the injection mold tooling?

    You, the customer, retain ownership of the custom mold tooling. We store it at our facility for a minimum of two years at no extra cost, and it can be shipped to you upon request.

  • What happens if I need to reorder injection molded parts?

    Reorders are fast and simple. Since the mold is already made and stored with us, we can typically begin production immediately, leading to much shorter lead times compared to the initial order.

  • What certifications do your injection molding partners have?

    We work with a network of specialized injection molding companies that hold ISO 9001 and ISO/TS 16949 certifications, ensuring consistent quality and reliable processes for your parts.

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