MARND product design turns ideas and concepts into real practical products. The process covers preliminary design, where general features and functions are developed, and detailed design where specific materials, dimensions, and tolerances are identified. This is then followed by the integration process with required electronics developed in parallel with mechanical design. A prototype is prepared and tested to verify the design.
Preliminary & Detailed
Design and features detailed development starts after the concept reaches a satisfactory point and all the main features are frozen. The preliminary design focuses on creating the product framework, which is crucial for the product development. The visual representation is made using digital design frameworks such as 3D CAD rendering, which helps effectively communicate the product idea. The preliminary design bridges the gap between conceptual design and detailed design. The detailed design is where the overall product details are defined, e.g. materials, dimensions and tolerances. This facilitates more accurate estimations of product specifications and cost, and more importantly allows for successive prototyping and test.
Technological elements, e.g. electronic components, are designed and integrated into the mechanical design. The process facilitates preparation of production quality prototypes at an early stage in the development process, e.g. PCBs are designed using final SMD components directly instead of going through breadboard iterations. This allows identification of integration challenges early on in the process.
Prototyping and Test
Tests are first carried out digitally by simulating real-world scenarios to estimate the product design ability and limitations. This helps identify key possible improvements required to overcome newly found limitations. Simulation simply helps identify how the product might change its shape or break when used by end-user. It could also highlight areas with excess material that could be removed; to save weight and cost without impacting product functionality.
Filament based 3D printers are used to create working models for mechanical parts. After which powder-based SLS (selective laser sintering) printers are used to produce more parts at much lower tolerances. This in turn helps improve tests accuracy. Some parts are later on machined using CNC (computer numerical control) machines to make sure the test is as accurate as possible, before the design review and optimisation is initiated for manufacturing preparations.