A. Handle original prototype.
B. Make die joint.
C. Make frame for prototype.
D. Pour silicone rubber.
E. Remove bubbles on vaccum machine.
F. Separate silicone mold.
G. Take out original prototype from silicone mold.
H. Shut the silicone mold.
I. Weigh according to prototype and color it.
J. Vacuum pouring.
K. Take out prototype from silicone mold.
L. Take out casting head.