Trevithick Dredger Engine- soldering the big boiler flange.
Today I soldered the large flange which holds the flat end plate, to the boiler shell. The flange is a large piece of LG2 bronze, but it is quite delicate because the centre is removed, leaving only the rim.
Here is a photo of the flange in position, fluxed, and ready to apply heat and silver.
But before this step I made a special tool. Can you guess its purpose?