Hi guys,
I am new to the forum, and it seems to me that it is usual here for new members to introduce themselves 
So I am an electronics engineer, and at work I have only rarely to do with mechanics. But I my family owns a machine factory and so I have access to CNC lathes and milling machines and even spark erosion machines, and so one of my hobbies is to make different mechanical things; i.e. I have already made some Stirling motor models and I am now planning for something more advanced. This is why I joined the forum to ask questions 
I don't have a particular use for my engine models, I make them just for fun 
Best
Oliver