Prototyping PCBs efficiently requires precision – not just in hardware, but also in software. For a desktop application used to prepare CAD data for PCB prototyping, we developed a clear, intuitive UX/UI design and a tailored HMI design for the connected machinery. The result: a unified experience across both platforms, powered by a custom design system.

The biggest challenge? Simplifying highly complex workflows while making the touch-based HMI fully operable on a small screen – without compromising functionality or clarity.

Our process began with in-depth user research and UX evaluation. We collaborated closely with the client to map and assess existing flows and interfaces, then restructured the information architecture for better usability. The interface design was then refined with a focus on signal colours and accessibility, ensuring seamless machine compatibility.

We replaced the previous typeface with Lato – a font designed for optimal readability, closely resembling the original. We also reviewed all colour contrasts for WCAG 2.1 compliance, making the interface more accessible to users with visual impairments.

Signal and status colours were redesigned for clarity: instead of orange (commonly read as a warning), we used blue as a neutral and complementary tone – visually consistent and more intuitive for interactive elements.

The result is a consistent, user-friendly HMI design for the desktop and the machine interface. It unites form and function – delivering a professional, aesthetic system that meets the demands of both usability and technology.