Producing a clean wax pattern is the foundation of lost wax casting. A wax injection machine does this by pushing molten wax into a precision die at a set pressure and temperature, holding it until solidified, then ejecting the pattern. The die defines the geometry; the machine's consistency defines whether that geometry is repeatable across hundreds or thousands of shots. Laxminar... https://www.ic-machines.com/wax-injection-machine/