Dave Tapsell
Cast Aluminium
Aluminium casting: 70mm diameter by 24mm thick; June 1966. This was a test piece to try casting aluminium, using a sacrificial pattern in foundry sand. The pattern was made from two pieces of polystyrene ceiling tile bonded together. The surface finish is as good as I could cut the polystyrene; this was not easy, particularly when trying to cut out the five smaller core holes.
Behind the casting is a largish spindle shell (34cm long), found in 1976 on the beach at Point Samson, on the Indian Ocean coast of Western Australia.
Cast Aluminium
Aluminium casting: 70mm diameter by 24mm thick; June 1966. This was a test piece to try casting aluminium, using a sacrificial pattern in foundry sand. The pattern was made from two pieces of polystyrene ceiling tile bonded together. The surface finish is as good as I could cut the polystyrene; this was not easy, particularly when trying to cut out the five smaller core holes.
Behind the casting is a largish spindle shell (34cm long), found in 1976 on the beach at Point Samson, on the Indian Ocean coast of Western Australia.