Sand casting a piston for a 1910 Brush car.
Part 2 Making the sodium silicate/CO2 cores and pouring basins.
Here I make the cores that will be used to form the inside of the pistons. Also I make some John Campbell inspired pouring basins to sit atop the sprue. Later, in Part 3 of this video series, I put these components together with a rammed sand mould and the chills made in part 1 and cast the pistons.
