Trevithick Dredger Engine- Supports
These are the boiler supports for th Trevithick Dredger Engine, which need a little more finishing.
As you can see my CNC mill is working nicely. The slow feed rate is because the brass is just super glued to the mounting base and I did not want to risk it coming adrift.
The CNC milled parts. The brass is 7.5mm thick.
And this was cut out from the edge silver soldered brass bread slices.
And I have also been working on the 6″ vertical boiler. The brazing with silver solder is almost finished. I have been redoing some of the joins, and can now get the pressure up to 200psi. There are 101 soldered joins in the construction (so far), so I am not too upset that a few of them were not perfect and required a redo. SWMBO was wondering about the bills from the industrial gas supplier. I have used several fills of oxygen. Totally abandoned acetylene and using propane now. It delivers more heat (at a slightly lower temperature), and much less costly.
johnsmachines 