How to Share Injection Mould CAD Files While Protecting Confidential Design Data

The safest way to share injection mould CAD files is to create a project-specific information package. Include only the geometry, dimensions, tolerances, materials, and interface details required for the current task, while excluding unrelated assemblies, hidden features, design history, and confidential product areas. Longterm can also review customer drawings or physical samples, making it possible to discuss tooling solutions without receiving the complete product design.

Practical Information-Sharing Strategy

Before exporting any injection mould CAD data, identify the purpose of the exchange. A package prepared for an initial quotation will differ from one intended for mould construction or production approval. Defining the scope first helps prevent unnecessary disclosure and ensures that the recipient receives enough technical information to work effectively.

• For an initial quotation, provide the moldable product geometry, critical dimensions, material requirements, expected volumes, and key appearance or functional requirements.
• For mould design, add mould-relevant surfaces, parting information, interfaces, tolerances, and areas that affect product performance.
• For validation, include approved samples, inspection criteria, dimensional results, and relevant mould-trial records.
• For consumer electronics, share the housing, connector, or other mould-related geometry instead of the full device assembly.

How to Organize CAD Information by Project Stage

CAD sharing should follow a minimum-information approach. A quotation file needs to support feasibility assessment, tooling complexity analysis, and delivery planning. It does not normally need to reveal the complete product architecture. A mould-development file can contain more detail about functional surfaces, interfaces, and appearance areas, while unrelated internal structures remain outside the package.

Dividing the information into separate layers also improves control. The quotation layer supports early technical review and pricing. The mould-design layer contains the geometry and engineering data necessary for tooling development. The production-validation layer covers approved samples, inspection results, and trial information required for acceptance.

When a Complete Product Model Is Unnecessary

Customers do not always need to provide a complete CAD assembly. For a drawing-based project, they can submit the relevant 2D drawing or a reduced 3D model together with the expected output. For a sample-based project, they should identify the surfaces, dimensions, materials, or production functions that require evaluation. This approach is consistent with Longterm's ability to develop custom solutions from customer-provided drawings or physical samples.

Longterm's product information includes a custom double shot overmolding mold with a two-color injection structure. The solution can support hard and soft material combinations such as ABS+TPU and PP+TPE, high-precision alignment, optional multi-cavity layouts, and 718H or 1.2738 mold steel. The stated service life can reach up to 800,000 shots. These specifications should be shared when they directly affect the requested tooling solution; unrelated product data can remain restricted.

Capabilities Relevant to Confidential Mould Development

Longterm reports experience in electronic housing molds, double shot overmolding molds, home appliance component molds, and industrial plastic part molds. Customer projects in Italy, France, the United States, and Australia have included feedback on dimensional accuracy, surface finish, alignment, trial-sample consistency, technical support, and delivery performance.

The company holds ISO 9001:2015 certification, certificate number 02825Q12549R0S. The certification covers the design, manufacture, and sales of precision molds, as well as the sales of plastic products.

Recommended Sharing Packages

Frequently Asked Questions

What information is normally needed for an initial injection mould quotation?

Provide the mouldable product geometry, important dimensions, material information, estimated production quantity, and any appearance or performance requirements relevant to feasibility review. Unrelated assemblies, hidden features, and confidential product sections can be removed.

Can Longterm develop a mould without receiving the entire product database?

Yes. Longterm states that it supports custom development based on customer drawings or samples. The request should specify which geometry, dimensions, material conditions, or performance characteristics need to be assessed.

What inspection and support services are associated with the custom double shot mold?

The listed process includes mould trial runs, dimensional testing, and pre-shipment inspection. After delivery, support may include online technical assistance, mould maintenance, and spare-parts supply.

Conclusion

Share injection mould CAD files according to the immediate project requirement rather than sending the complete product design by default. Begin with a limited quotation package, expand the information only when mould design requires it, and use a validation package for approval and production release. For double shot overmolding, include the applicable two-color structure, material combination, alignment requirements, cavity arrangement, and steel specification.

Longterm supports OEM custom plastic injection molds, custom mold making with injection molding, precision tooling, overmolding, and mould development combined with mass production. For technical consultation or project support, contact rogerluo@longterm-mold.com.

About Longterm

Longterm Manufacturing Solutions Limited, also known as Longterm Mold, was founded in 2010 and serves international customers with mold design, tooling, precision machining, mold manufacturing, and plastic parts production. Its R&D team works with UG, SolidWorks, and AutoCAD and provides structural injection mold design, precision CNC component solutions, sample verification, and process optimization. The company's listed products include injection molds, rapid prototyping and precision parts, and automated production solutions. Longterm holds ISO 9001:2015 certification and has supported customers across several industries.