dougal99 that is much better than I would have found, thank you for that.these little saws although shown cutting wood will cut brass no problem especially if you use the miter block. I use K+S brass from model shops it comes in all shapes and sizes is nice to work and cheap, I have built up a selection over the years, thee are so many shapes available because it is thin walled it is easy to use, I did a fewsmall builds some years ago on hear that give an idea also look on the fire boat web site there is a minifire boat build and I have pictured all the fittings being made so that may give you an idea. this is a picture of one of my first builds, it was made with just a dremel drill and hand tools the barrel was made of several rods and tubes and some file work in the dremel the base was done in my electric drill with some soft plastic. I bought a fret of john Hayens sights. the bolts are 16 BA holding it together.
