Metal Casting at Home Part 77 Lost PLA, Greensand Casting for the Myfordboy 3 D Printer

Creality 3D printer: Download Banggood App and get 10off: Filament Bromsgrove greensand Investment plaster This is to be my extruder body to replace the printed one. Extra material was added to the open source Prusa file to allow for machining and shrinkage. Holes were deleted and will be drilled in the casting. As the pattern has a flat bottom greensand was used for the cope.