Whilst this is not technically a casting or foundry thread, it does contain some attempts by me to make some patterns, and of course there is the machining of the castings I have had done and ones I have purchased. I am about six years into the build now, about 3/4 of the way through. My health is not as good as it could be so it has taken longer than I had originally anticipated but at least it is getting there.
I have taken a lot of pictures of the build, which has not always followed a particular order. I will attempt to create some kind of logical structure to the thread, but there might be the odd continuity error, so bear with me.
The best place to start is with the purchase of the boiler. We have in this country (UK) something called the 'Pressure Equipment Directive', which states the laws on how pressure vessels should be constructed; which means that even though at the time I was qualified to build and weld pressure vessels, it was easier to fork out and buy a ready made boiler, that's progress I suppose.