The Vacuum casting process includes the following steps:

• Step 1 : Production of a pattern using any of the Rapid Prototyping Process like SLA, SLS, FDM etc.
• Step 2 :The pattern is fit with a casting gate and set up on the parting line and later suspended in a mould casting frame
• Step 3 :After de-aeration two-part-silicone rubber it is mixed and poured into the mould casting 
                frame around the pattern.
• Step 4 :Inside a heating chamber the mould is cured
• Step 5 :By cutting along the parting line the pattern is removed from the silicone mould.
• Step 6 :Polyurethane resin (PU) is measured, dye is added for coloured parts and casting funnel is  placed,and then the mould is closed.
• Step 7 :Vacuum Casting machine which is computer controlled mixes and pour the resin inside the  vacuum chamber. As the process takes in a vacuum, the mould is filled completely without  leaving any air pockets.
• Step 8 :Then the mould is kept inside the heating chamber for 2 -4 hours to cure the urethane part.
• Step 9 :After hardening, casting is removed from the silicone rubber mould and finished.