Vertical Boiler Firebox Wrapper
Next part to make on the 6″ vertical boiler is the firebox wrapper. I had ordered some 3mm thick 5″ diameter tube from the UK, but when it arrived, at vast expense, it was only 2.5mm thick, and would not pass the boiler inspection.
The vendor agreed to replace the item, but still no word when that will happen, so I decided to make the tube myself, by rolling 3mm plate copper sheet.
I calculated that I would require 399mm to make a 5″ tube, and bandsawed a piece off my 300x400mm sheet.
My hand roller is only rated for 1mm thick material, and my powered shop roller would not fit the 105mm width. So I tried the hand roller. It would not look at the copper strip in an un-annealed state. So I annealed it. Photo opportunity!