How to Make (Almost) Anything

Project 07

Topic: Molding and Casting <1>
Design: Weaire-Phelan Structure (The Water Cube)
Software: Rhinoceros 5.0
Hardware: Shopbot 3-Axis Milling

Material:

Machinable Wax: <1>
- Melting Point = 240 F
- Specific Gravity = 0.92

Silicone Rubber / Eleastomer (OOMOO(R) 25/30):
<1>
- Melting Point = None (It burns at the following maximum service temperature)
- Service Temperature > 300 F
- Specific Gravity = 1.18

High Heat Resistant Silicone Rubber (Mold Max(R) 60):
- Maximum Service Temperature = 300 C (560 F)

Plaster: <1>
- Melting Point = 1200 C (2200 F)
- DryStone <1>
- HydroStone <1>

Babbitt Metal (White Metal): <1>
There are many alloys (a material composed of two or more metals or a metal and a nonmetal) of babbitt metals. In general, babbitt metal is made of metal alloy that is soft and low in melting temperature.
- Melting Point = 240 C (460 F)
- Proper Pouring Temperature = 425 C (800F)

Variation of Babbitt Metal Alloy:
- Nickel Genuine = 90% Sn(Tin) + 3% Cu(Copper) + 7% Sb(Antimony)
- Super Tough = 85% Sn(Tin) + 7.5% Cu(Copper) + 7.5% Sb(Antimony)
- Heavy Pressure = 10% Sn(Tin) + 75% Pb(Lead) + 15% Sb(Antimony)

Tutorial:

- Casting Metal Babbitt: <1>
- Plaster Mold Casting: <1>

Wax + Silicone + DryStone:

High Heat Resistant Silicone + Babbitt Metal