Steam Engine Base Pattern

[doubleboost]

This base will need 3.5 litres of metal pluss the risers & runners
My big crucible is not big enough
I cant get a bigger one in the furnace
Time for a furnace extension & a even bigger crucible

A couple of bands were formed (bent around a oxy bottle)
These were tack welded to the bench and filled with castable refractory

This gave the furnace 4 inches of extra depth




Now for a bigger crucible
This is exactly the same as the last one only taller


Easy method of work holding a couple of tack welds & a big nut


Machined to size and prepped for welding



I can now melt 5 liters easily
John