3d Printed RC Sub Prop. Printed on the B9Creator for a friend of mine and shown with the supports still in place to allow the print to post cure and keep the blades level and as intended.
The blades are only 1mm thick and at 78mm diameter; the size includes allowance for wax and bronze contraction. I guess he will need this to be produced on a jewellery casting machine; I wonder if the bronze will flow along such thin sections over such a size with traditional investment casting. we will find out at some point.