Due to the custom-manufactured nature of our products, please be aware that all sales are final as stated in the order checkout confirmation. Returns will only be accepted at our discretion under specific circumstances where, upon thorough inspection, it is determined that there was a defect in workmanship, or the delivered part did not meet specification(s) clearly outlined in your original order or accompanying technical drawings.

To initiate a return for inspection, please contact us using the Support Request form within 3 calendar days of delivery of your order, providing detailed information and photographic evidence of the defect or specification discrepancy. A photo of the QC Inspection label or tag included in your package must be included. Returns sent without an RMA will not be accepted.

Support Request

Our customer service team will verify the issue(s) and determine whether the part should be returned, remade, or refunded. You will receive an email or be contacted by Rapid CNC Parts.com when that determination has been made.

If your return is approved following our initial review, we will issue a Return Merchandise Authorization (RMA) number. To ensure prompt processing, please clearly mark the RMA number on the return packaging and include the original QC label or tag that was attached to the part.

Returns that do not include the RMA number or original QC label/tag may not be accepted and will not be returned.

Support Request

We are committed to providing high-quality CNC machined parts that strictly adhere to the specifications agreed upon in your original order. We use the latest top-rated state-of-the-art CNC Machines to manufacture your parts, and we use USA Manufactured and Sourced stock materials. All parts are generally manufactured and inspected according to standard tolerances as defined in ISO 2768 Medium, unless otherwise specified in your order documentation. All products undergo rigorous quality inspection prior to shipment. In the event that a defect in workmanship or a deviation from the specified requirements is confirmed, we will, at our discretion, repair, replace, or issue credit for the affected part.

Learn More

Use our design guidelines to optimize your CNC machined parts for cost-effectiveness, manufacturability, and quality by following essential design guidelines. 

Proper material selection, simplified geometries, standard tolerances, appropriate corner radii, hole sizes, and careful consideration of wall thickness and surface finishes are key to efficient CNC machining. Click Learn More for detailed insights on how these best practices can streamline your design process and reduce production costs.

Design Guidelines

We recommend all customers to use a DFM approach (Design for Manufacturing) where product design principles are used. The standards when applied properly improve quality and lowers production cost:

·         Process - Using the right manufacturing process to assess a variety of factors such as cost, material, volume, surface finish and post processing needs along with tolerances.

·         Design – Probably one of the most important principles where the implications of a design can have a significant impact on the feasibility to machine a given part where critical design factors like walls, faces, threads, corner fillets,

·         Materials – Select an appropriate grade and material early in the development process considering aspects such as strength, chemical or thermal resistance, surface finish, flammability, and machinability.

·         Environment – Consider the environment in which the product be used or operate in to select the appropriate design and material.

·         Testing – Evaluate methods to test and ensure compliance with any requirements. Generally complying with standards will require the manufacturer to have testing methods for them.

In addition to DFM principles, all parts should comply with our General Design guidelines for the best results, and when complexity is required our online instant quoting engine will require a manual review of such a part to ensure we deliver a high-quality part on a timely cost-effective basis.

Parts with features that do not generally comply with general design guidelines may not be accepted or will require a manual quote (interior corner/floor fillets, undercuts, threaded/tapped holes and overall complexity). Complexity such as but not limited to a high number of cuts/faces or contoured surfaces, deep drilling, thin walls, engraving, will generally require a manual review.

Learn more about DFM