Mechanical Development

Mechanical product development is the engineering discipline that defines, details, and optimizes the geometry, materials, tolerances, and manufacturing processes of parts and technical assemblies, with the goal of ensuring their proper function, production viability, and economic efficiency. Industrial design, in turn, focuses on the shape, user experience, and aesthetics of the product. Both disciplines are complementary, but mechanical development is what ensures that what has been designed can be manufactured, works under real conditions of use, and has a viable production cost.

The practical difference shows up in the type of decisions each discipline addresses: industrial design defines how the product should look and feel; mechanical development defines how it should be built, with which materials, with which manufacturing process, and with which tolerances. At INFINITIA, both perspectives are integrated from the earliest stages of the project to ensure the final result is technically sound and industrially manufacturable.

The optimal time to involve a specialized mechanical development team is the conceptual stage, when design decisions still have a low cost of modification and a high impact on the final result. Integrating manufacturability, material selection, and process constraint criteria from the outset avoids having to redesign components once the project is well underway, which is when changes become more costly in time and resources.

In practice, however, INFINITIA frequently joins projects at more advanced stages: when an existing design fails functional validation, when a component generates recurring production problems, or when a company needs to adapt a design to a new manufacturing process or supplier. In any of these scenarios, bringing in an external technical partner specialized in mechanical development adds value from the very first day of work.

Designing a product without integrating manufacturability criteria from the earliest stages creates one of the most costly problems in industrial development: late-stage redesign. When a part reaches the manufacturing stage with insufficient draft angles, thicknesses unsuited to the selected process, or geometries that cannot be reliably reproduced in series, the cost of correction multiplies compared to what it would have been at the design stage. Modifying an already-built injection mold, redesigning tooling, or reworking an assembly line once production has started carries an economic and schedule impact that can jeopardize the viability of the project.

In addition, designs that do not account for the manufacturing process tend to result in products with a higher unit cost than necessary: more parts than strictly needed, complex geometries that increase cycle time, tolerances tighter than the function requires. Design for manufacturing (DFM) applied from the start of mechanical development is the most efficient way to avoid these structural costs and ensure the product reaches production with a sufficient level of technical maturity.

The starting point of a mechanical development project at INFINITIA can vary widely: from a concept defined only as a sketch or functional description, to an existing CAD model that needs to be optimized or adapted to a new manufacturing process. Complete technical documentation is not required to start the work; in fact, one of the most common services is precisely generating that documentation from existing physical components through reverse engineering and 3D scanning.

The most useful thing to have when starting out is a clear description of the function the component must perform, the expected conditions of use, the desired or available manufacturing process, and the estimated production volume. With that information, the INFINITIA specialized team carries out an initial technical assessment that defines the scope of the project, the most suitable tools, and the technical risks to be managed. To start that first technical conversation, the most direct route is to contact the INFINITIA team.

Selecting the manufacturing process is one of the most decisive choices in mechanical development, because it shapes the possible geometry of the component, the achievable tolerances, the cost of the required tooling, and the unit production cost. The main factors determining that choice are the component material, the required geometry, the expected production volume, and the target unit cost. A mass-produced plastic component points toward injection molding; a metal part with complex geometry in a short run may be better solved through machining or additive manufacturing; a structural sheet metal part points toward stamping or laser cutting with subsequent forming.

At INFINITIA, selecting the manufacturing process is not treated as an isolated decision but as an integral part of mechanical development: the selected process defines the design constraints that the specialized team integrates from the very first CAD model. This consistency between design and process is what ensures the component can be manufactured reliably, at the required quality, and at the projected cost, with no need for modifications once production has started.

Industrial mechanical development relies on a set of tools covering the different stages of the process: parametric CAD modeling software for the complete geometric definition of parts and assemblies; finite element analysis (FEA) tools to verify structural behavior under load; manufacturing process simulation software (plastic injection molding, stamping, casting) to predict defects before building the tooling; and 3D scanning systems for digitizing existing components and dimensionally controlling produced parts.

The selection of specific tools within each category depends on the type of project and the manufacturing process involved. At INFINITIA, combining these capabilities in a multidisciplinary team makes it possible to address the entire mechanical development cycle, from concept through to a design ready for manufacturing, using the most suitable tools for each stage and each type of component, without relying on a single technology platform.

Mechanical development is the complete process that turns a functional need into a component that is defined, optimized, and documented for manufacturing. Reverse engineering is a specific technique within mechanical development that makes it possible to reconstruct the geometry and specifications of an existing component when the original CAD documentation is unavailable, combining measurement (3D scanning, coordinate measurement) with parametric redesign. Product redesign is the application of mechanical development to an already-existing component, with the goal of improving its performance, reducing its manufacturing cost, or adapting it to a new process or material.

All three concepts are related and are frequently combined within a single project: reverse engineering generates the starting model, mechanical development defines the necessary improvements, and redesign turns those improvements into a new manufacturable component. At INFINITIA, these three capabilities are integrated into the mechanical development service as part of a continuous technical process that starts from the client’s real situation and leads to a design ready for production.

Validating a mechanical design before committing investment to final tooling is done through two complementary tools: digital simulation and physical prototyping. Simulation (FEA for structural behavior, injection molding simulation to predict process defects) makes it possible to verify component behavior in a digital environment under the expected loading and manufacturing conditions, identifying design problems before manufacturing any physical part. Rapid prototyping through 3D printing or machining of single units makes it possible to verify geometries, mechanisms, assembly tolerances, and appearance on real physical parts before investing in molds or tooling.

Combining both tools in the mechanical development process significantly reduces the technical risk of each project: simulation filters out design problems that can be solved without manufacturing anything, and prototyping validates the aspects that can only be verified on a physical part. INFINITIA integrates this validation sequence as a standard part of the mechanical development process, ensuring that the design reaching production has been technically verified before committing investment to final tooling.

The cost of a complete mechanical development project depends on factors such as product complexity (number of parts, type of mechanisms, tolerance requirements), the intended manufacturing process, the level of simulation and validation required before production, and the technical documentation needed to work with manufacturing suppliers. There is no standard price, because each project has a different technical scope and a different starting point.

At INFINITIA, the usual process begins with an initial technical consultation at no cost, where the scope of the project is defined and a specific proposal is drawn up tailored to the real needs. Mechanical development timelines typically range between 2 and 8 weeks for medium-complexity projects. To get a tailored quote, the most direct route is to contact the specialized team and describe the project with whatever level of detail is available, with no need for complete technical documentation to start that first conversation.

Yes. Reducing the cost of a product already in production is one of the most common mechanical development projects and one with the highest immediate economic return. When a product has been in production for some time, there are often optimization opportunities that were not identified during the original design stage: parts that can be merged into a single multifunctional component, geometries that can be simplified to reduce cycle time, materials that can be replaced with alternatives offering a better performance-to-cost ratio, or assembly processes that can be redesigned to reduce the number of operations. Each of these improvements has a direct impact on unit cost, multiplied by the accumulated production volume over the life of the product.

At INFINITIA, this type of project begins with a technical analysis of the existing product aimed at identifying the cost-reduction levers with the greatest potential and the lowest risk of impacting quality or functionality. The result is a redesign proposal prioritized by economic impact and technical feasibility, allowing the client to make informed decisions about which improvements to implement and in what order.

Yes. INFINITIA’s mechanical development service does not require a full-cycle commission: it is common to work on specific parts of the development, such as redesigning a part that generates production problems, optimizing an assembly to reduce its manufacturing cost, digitizing a component without CAD documentation through 3D scanning, or analyzing the manufacturability of an existing design before building the mold. Each of these partial interventions delivers concrete technical value without needing to rethink the entire project.

This flexibility of scope is especially useful for companies that have an in-house development team but need specific capabilities they do not have internally (FEA simulation, 3D scanning, DFM), or for startups that want to validate a specific technical decision before moving forward with development. At INFINITIA, the starting point of every project is always the initial technical assessment, which makes it possible to define the most efficient scope for the client’s real needs, whether the project is partial or complete.

This is one of the most common scenarios in industrial product development: a component that works correctly as a prototype but generates recurring defects in series production (sink marks, warping, dimensional rejects, assembly problems), or whose unit cost in series is significantly higher than expected at the design stage. The usual cause is that the design was developed without systematically integrating the constraints of the manufacturing process, creating a gap between what was designed and what the process can produce reliably and economically.

INFINITIA addresses this type of situation through a technical analysis of the existing design aimed at identifying the causes of the manufacturing problems and proposing the necessary modifications to resolve them without compromising the functionality of the component. The result is a manufacturability-oriented redesign that turns a problematic design into a component that can be produced reliably, at the required quality, and at the projected cost. To start that analysis, contact the INFINITIA specialized team.