Enclosure design

Enclosure design kicks off from the preliminary sketches created to pin down specifications of the device, but without the luxury of approximations this time around. Most measurements are precisely set by components that the enclosure will hold. The enclosure is designed around mechanical components like bolts, security screws, springs, buttons, sealing rubber components, etc. so that these components perform optimally for the product's life cicle. Most changes requiring displacement of inner components result in PCB layout changes, and vice versa. This is the reason why the enclosure design is only considered done when the last iteration of the PCB design is tested and approved for production.

First realistic visual representations of the enclosure and it's internals are made in 3D CAD programs, where the design can be tested for simulated tensile strength, assembly problems, and can be prepared for plastic injection molding.

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Specifications

Defining the customer's or end user's needs is the first and most important step of the product development process. Vague product specifications are a hotbed for misapprehension, leaving the development process prone to errors.

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Outlining the system

Once the product specifications are defined, the design process starts, at the end of which there will be a well defined concept of the end product.

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Software development

Developing software for embedded systems can be challenging since every system is in many ways different from the others and has lots of unique features.

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Hardware design

Hardware design is all about precise design and consideration of all factors, where the end product will be the intended PCB that can pass all tests and measures up to all expectations.

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Prototyping

After the PCB design is ready to be tested, severeal PCBs are produced and assembled. The circuits and chosen components can be tested with the software as a system, and tried into 3D printed enclosures.

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Testing

Testing means measuring a devices parameters and comparing those to expected measurements. The goal is to find the real values and limits of the device and compare those to expected values.

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System optimization

Test results are condensed into changes in the system in such way that all intended improvements are met.

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Low volume production

Low volume production of the tested devices means making 50-300 devices on full-blown assembly lines, injection molding machines and using the whole production line as if thousands of the devices would be created.

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Certifications

The final tackle in a device's development is pushing through certifications. These certifications make sure that the device is in conformance with all criterea set in the specifications phase.

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