Copper

What is Copper

Copper is a pure metal. This means it has very high thermal and electrical conductivity. Copper is a robust material that does not shatter easily, nor become brittle at freezing temperatures.

Copper is often used for decorative purposes. It is commonly seen on buildings and statues, because it can withstand time and remain aesthetically pleasing for thousands of years. It can also be used to create jewelry.

Copper is naturally hygienic and thus deters the spreading of germs. Because of this, Copper can be used in germ prone situations, i.e. in medical products, coins, door knobs, plumbing systems, etc.

Properties

Copper is prone to oxidation and the color will change and become green overtime. However, it is also a resilient material that will not degrade overtime.

For more specifications, the table below shows the exact properties of Copper

Printing Method

Copper models are 3D printed through casting. Casting is a common technique that uses molds to produce a small series of functional metal parts. It is particularly useful for fast production of high-quality prototypes or end-use products.

3D printing is useful in this technology to print the original wax model. This is often completed through stereolithography (SLA) technology with a high-detailed finish. The mold is then cast around the wax model. Once set, the wax model is melted and drained, leaving a void in the shape of the model in the mold. Then, the mold can be filled with Copper. This method is ideal for producing jewelry and other small-sized metal components.

Design Specifications

Thickness & Geometry

The maximum size of the model will depend on the print bed of the 3D printer. It is not advised to 3D print the model in parts to be assembled. The minimum size will depend on the casting. Please refer to the specific casting type for these specifications. Models that are too small will not be able to be filled.

Details

The minimum wall thickness for Brass is 0.8 mm to ensure it can hold its own weight. If a wall thickness of less than 0.8 mm is desired, you may need to choose a different material that can be used for thinner designs.

For small details, a minimum spacing of 0.3 mm is required to ensure the wax does not get trapped.