Frequently Asked Questions

For a CNC machining quote, provide the latest 2D drawing and, where available, a 3D CAD model. Include material preference, quantity, required surface finish, critical dimensions or features, and relevant assembly or functional requirements. A brief description of the intended application can help clarify priorities. Missing details may be discussed during RFQ review.

You may submit 2D drawings, 3D CAD files, or supporting project documents that help communicate the part requirement. Commonly used file formats can be reviewed based on the information needed for the project, and any specific native CAD format requirements should be confirmed during RFQ review. A drawing may define dimensions, tolerances, and notes, while a model can help clarify geometry, feature relationships, and overall part form.

Yes. A drawing and requirement review can be requested before production planning is discussed. The review may identify open questions involving geometry, material selection, tolerances, surface finish, quantity, or assembly interfaces. Its scope should be based on the drawing and project requirements, with project feasibility discussed before moving forward.

A design for manufacturability, or DFM, review is an early discussion of whether part geometry and requirements are practical for the intended manufacturing approach. It may consider tool access, feature orientation, internal radii, thin walls, deep cavities, materials, finishing requirements, and functional interfaces.

A DFM review is especially useful when a design includes complex geometry, thin sections, deep internal features, close feature relationships, tight functional requirements, or multiple manufacturing processes. It can also help when the design is still being developed or when material and finish choices remain open. More context is available in our DFM Review Process.

Potential machining considerations can be discussed before a design is finalized. This may include tool access, wall thickness, cavity depth, thread placement, material behavior, finishing requirements, and mating features. Feedback is based on the information provided and should be considered alongside the intended functional requirements. See our DFM Review Process for related guidance.

Common material discussions may include aluminum, stainless steel, carbon steel, copper and brass, titanium, and selected engineering plastics where applicable. The suitable option depends on mechanical requirements, corrosion exposure, conductivity, weight, wear, finish requirements, and part geometry. Explore our CNC Machining Materials page for material-specific information.

Material options can be reviewed against the functional demands of a component, including mechanical load, environmental exposure, conductivity, weight, machinability, and finishing needs. A comparison is most useful when the drawing, operating context, and critical requirements are shared together. Refer to our CNC Machining Materials page for a broader material-selection overview.

A project may involve more than one manufacturing requirement, such as machined components, formed sheet metal parts, protective finishes, or defined component interfaces. The applicable scope depends on the drawing, materials, component relationships, and project requirements. Visit our Integrated Assemblies page for information about multi-component project considerations.

Tolerances should be clearly identified for dimensions or features that affect part function, fit, movement, sealing, alignment, or assembly. General dimensions and critical dimensions should be distinguished where possible, with notes that explain special acceptance requirements. Our CNC Machining Tolerance Guide provides more detailed drawing guidance.

Tight, non-standard, or function-specific tolerances can be reviewed based on the drawing, material, geometry, feature location, and project requirements. Early clarification is helpful where a tolerance may affect manufacturing planning, inspection expectations, or cost considerations. See our CNC Machining Tolerance Guide for further tolerance-related context.

Datum references and critical dimensions help communicate how features relate to one another and which measurements matter most for function or assembly. Clear references can reduce ambiguity when evaluating holes, profiles, mating surfaces, locations, and orientation requirements. They also support discussion of inspection priorities. Refer to our CNC Machining Tolerance Guide for more detail.

Yes. Inspection expectations, dimensional records, material documentation, certificates, labeling, or other project documents should be identified during the RFQ stage. Availability, scope, format, cost, and timing should be confirmed during the RFQ process and are subject to project review. Visit our Quality Control & Inspection page for related information.

These requirements should be raised as early as possible, preferably with the drawing and RFQ information. Early discussion helps clarify documentation scope, acceptance criteria, part identification needs, and planning considerations. Availability should be confirmed during the RFQ process, based on the drawing and project requirements. See our Quality Control & Inspection page.

Surface finishing requirements can be included when submitting a machining project, particularly where appearance, corrosion resistance, wear behavior, electrical performance, or assembly fit may be affected. The required finish, color, masking areas, cosmetic expectations, and applicable standards should be stated on the drawing or RFQ. Visit our Surface Finishing Solutions page for related guidance.

Assembly-related or multi-component requirements can be included for review. Useful information may include a bill of materials, assembly drawing, interface details, fastener requirements, packaging needs, and critical handling requirements. The applicable scope should be discussed based on the supplied information, component relationships, and project requirements. See our Integrated Assemblies page.

Submitted requirements are reviewed to understand the part geometry, materials, quantities, critical features, finishing needs, and documentation expectations. Questions may be clarified where information is incomplete or where manufacturing considerations require discussion. Project feasibility is then discussed before production planning, based on the drawing and project requirements. Contact Us to share additional project information.