“Designing and building complete usable products that combine different areas of expertise, such as 3D modelling, electronics, metalwork, and software development.”
Engineering
“Engineering is the practice of using natural science, mathematics, and the engineering design process to solve technical problems, increase efficiency and productivity, and improve systems.” – Wikipedia
In practical terms for me, it is designing and building complete, usable end products, such as a lab power supply, an autonomous vehicle, a piece of furniture, or an ornament. The product will often require more than one area of expertise to complete it, such as 3D modelling, electronics, metalwork, software development.
I have acquired most of the skills I employ to create a finished product organically, while others I have had training for (electronics, metalwork, software). Being an autodidact, I continually research ideas and technology to improve my knowledge, and apply it to my projects. I discover varying approaches to specific tasks and then choose my favoured method or a combination of techniques, or redesign from scratch using ideas.
I am therefore very appreciative of the large amount of resources available on the internet and specifically YouTube, with many people sharing ideas and designs.
The following are some examples of things I have built that I would describe as having been engineered, even though most of them are one-off products.