CNC Machining FAQs
This FAQ page answers common questions from engineers, sourcing teams, and product developers preparing custom CNC machined parts. Use it to understand what information helps quotation, how materials and tolerances are reviewed, what inspection records may be needed, and how JADE-CNC supports communication from RFQ to delivery.
RFQ and Drawing Review
Send your CAD files, 2D drawings, material grade, quantity, tolerance notes, surface finish requirements, and any inspection needs. JADE-CNC reviews the information and confirms unclear points before preparing a quotation.
STEP, IGES, X_T, or other 3D CAD files are useful for geometry review. A 2D PDF drawing is recommended when tolerances, threads, GD&T, surface finish, material notes, or inspection records are important.
Yes. Early drawings or 3D models can be reviewed for feasibility, but final pricing and production planning usually require confirmed material, quantity, tolerance, finish, and inspection requirements.
Yes. For custom machined parts, JADE-CNC can coordinate CNC machining, sheet metal or fabrication support where relevant, surface finishing, inspection, packing, and export delivery support.
This helps buyers manage prototype, low-volume, and production work through one manufacturing partner while keeping the final process route tied to the drawing and RFQ requirements.
Your intellectual property is our utmost priority. A standard Non-Disclosure Agreement (NDA) is the foundation of our partnership and can be signed before any technical discussion. All digital files are stored on secure, access-controlled servers. We operate on a strict need-to-know basis, and your project details are never shared with any third party.
From day one, you will be assigned a dedicated Project Manager. This person is your single point of contact, responsible for coordinating engineering, production, quality control, and communication throughout your entire project lifecycle, ensuring clarity and timely updates.
Quantity is reviewed during the RFQ process. JADE-CNC supports prototype evaluation, low-volume machining, and production projects, but the best production route and unit cost depend on material, geometry, setup requirements, inspection scope, and batch quantity.
Send the target quantity and annual demand if available, and we will recommend a suitable manufacturing approach.
JADE-CNC focuses on precision CNC manufacturing for custom metal and plastic parts, including CNC milling, CNC turning, 5-axis machining, micro machining, large part machining review, sheet metal fabrication support, surface finishing, and inspection.
Related service pages such as CNC Milling, CNC Turning, and 5 Axis CNC Machining provide more detail.
Clear material grade, quantity, critical dimensions, tolerance zones, surface finish, application environment, assembly requirements, and delivery expectations help reduce back-and-forth communication.
Yes. Our 5-axis simultaneous machining centers are essential for producing complex, high-precision geometries in a single setup. This capability reduces lead times, eliminates multiple fixturing errors, and allows us to machine intricate contours and undercuts that are impossible on 3-axis machines.
Tolerance capability depends on the material, part geometry, feature size, setup method, surface finish, inspection method, and production quantity.
Please mark critical dimensions on the drawing. JADE-CNC will review whether the required tolerances are practical before production and can discuss inspection requirements during the RFQ stage.
Payment terms are confirmed in the quotation according to order value, customer history, production scope, and export delivery requirements.
If your company has a required purchasing process, please share it during RFQ review so the commercial terms can be confirmed before production.
JADE-CNC can review common CNC materials such as aluminum, stainless steel, brass, copper, steel, titanium, POM, PEEK, PTFE, nylon, and other engineering plastics based on the drawing and application needs.
Production and Quality Control
JADE-CNC supports CNC milling, CNC turning, 5-axis CNC machining, precision machining, micro machining, large part machining, low-volume machining, and related post-processing support.
JADE-CNC will clarify unclear dimensions, tolerances, material notes, surface finish requirements, inspection items, or packaging requirements before confirming the production plan.
This depends on the extent of the change and the production progress. We will immediately assess the impact and transparently inform you of any changes to the lead time and cost. Where feasible, we will do our best to accommodate your request.
Quality control can include drawing review, material confirmation, first article checks, in-process inspection, dimensional inspection, CMM inspection when required, surface finish checks, and final shipment review.
Inspection reports can be provided when required by the project. Available records may include dimensional reports, CMM reports, first article inspection records, material certificates, coating checks, or other agreed documentation.
Yes. For repeat orders, stable drawings, approved samples, material records, inspection requirements, and process notes help maintain consistency across future batches.
Tolerance depends on material, part size, geometry, setup method, wall thickness, and inspection access. Critical tolerances should be marked on the drawing so JADE-CNC can confirm feasibility during review.
Common finishing options can include as-machined finish, deburring, bead blasting, anodizing, plating, polishing, brushing, painting, and other buyer-specified finishes depending on material and supplier availability.
Finish requirements should be confirmed during RFQ because color, texture, masking, cosmetic surface, and corrosion requirements can affect the production route. See Surface Finishing for more detail.
Transparent or polished plastic parts can be reviewed based on material, geometry, tool access, surface requirements, and expected appearance.
Final clarity and cosmetic results depend on material selection, machining marks, polishing access, and part design, so please share the required surface expectation during RFQ review.
Finishing, Delivery, and After-Sales Support
JADE-CNC can support export packing and international delivery coordination according to the confirmed quotation terms.
Carrier, shipment method, insurance, delivery address, and trade terms should be confirmed before shipment so the order can be packed and documented correctly.
If a non-conformance is reported, JADE-CNC will review the drawings, inspection data, photos, and production records to identify the cause.
Corrective action is handled according to the confirmed specification and responsibility. Clear documentation helps the review move faster and supports a practical resolution.
CMM reports can be provided when they are required and confirmed before production.
Please mark the critical dimensions and reporting requirements on the drawing or RFQ notes so the inspection plan can be arranged correctly.
JADE-CNC can support common export documents such as commercial invoice and packing list according to the confirmed shipment terms.
If your import process requires special documentation, please tell us before shipment so the requirement can be reviewed.
Yes. Moving from prototype validation to low-volume production is a common CNC machining workflow.
JADE-CNC can review the prototype feedback, adjust the manufacturing route where needed, and quote the next batch based on confirmed quantity, material, finish, inspection, and delivery requirements. Learn more about Low Volume CNC Machining.
JADE-CNC can review anodizing, hardcoat anodizing, bead blasting, polishing, brushing, plating, passivation, black oxide, painting, powder coating, laser marking, and other finish requirements based on material and drawing needs.
Yes. Coating thickness, polishing, blasting, masking, and passivation can affect dimensions, appearance, fit, and inspection results. Critical surfaces should be clearly marked on the drawing.
Assembly, marking, packaging, and shipment requirements can be reviewed when they are part of the project scope. These details should be shared early if they affect inspection or delivery.
Shipping method depends on destination, shipment size, urgency, and customer preference. JADE-CNC can coordinate common international shipping options after the project requirements are confirmed.
Contact JADE-CNC with photos, videos, drawings, inspection records, and a clear description of the issue. The team will review the information against the agreed drawing and project requirements.
Yes. Long-term cooperation is easier when drawings, materials, inspection standards, finish requirements, packaging rules, and revision history are clearly controlled across orders.