I work with injection molding machines as specialist. My work as service technician is to fix them, regardless what the problem is, electrical, hydraulic, mechanical or process on plastics issues. Although I know something about the software, I normally don't do it because the lack of deep knowledge  on this matter or even safety reasons.

My interests go aroung energy savings, alternative but always something practical that a normal mortal like the most of us (human kind) could test within safe boundaries and also not dificult to understand the principles and of course, once the step above is done, pass the information.