Some pictures. I did the clamp in foam so I would not have to make a split pattern or a follow board because I needed the angle to match the
Foam pattern and wood pattern
Full mold pattern (lost foam) and air ring used to fluidize the 60 mesh. with the ring inserted into the bottom of the can a squeeze of the air
chuck lifts the sand and allows the pattern to be inserted and adjusted, then minimal air allows it to be withdrawn and the bed settles for casting.
Casting on sand.
Foundry setup. The furnace is running based on the orange ring at the lifting body gap. I have been pouring cast iron and aluminum with this
furnace for almost 15 years on the original refractory, but have to periodiclly clean up this gap because of slag that gets onto the surface
and holds them apart.