Brass Copper Alloy (80% Copper, 15% Zinc, 5% Tin)

Brass

Wax Casting

Material info

About Brass

Brass is a material commonly used in jewelry, accessories and home decor. It is a copper alloy containing 15% zinc, 5% tin and 80% copper and is capable of showcasing intricate details and offers a professional, finished look and feel. Brass will tarnish over time, but can be polished back to achieve a like-new surface.

Color & Finishes

Natural
Light polishing to achieve a somewhat rough surface with a matte finish.
Polished
Hand-polished to achieve a smooth, shiny surface.

Technology

  • Wax Casting

Description

Material Highlights
Jewelry, Fashion Accessories, Home Decor, Prototypes, Miniatures
Handling and Care
High quality & shiny finishing, Capable of intricate details, Great value

Design Guidelines

Bounding Box

Bounding Box Max
89 × 89 × 100 mm
75 × 75 × 40 mm for Interlocking Parts

Bounding Box Min
2.4 × 2.4 × 0.6 mm

The bounding box is a 3D imaginary outline of a box that encloses the smallest area occupied by your model. Your model must be within the minimum and maximum bounding box sizes. If the size of the model is close to the maximum bounding box, then the printing orientation will be restricted.

Walls

Supported Wall Thickness Min
0.6 mm (Natural)
0.8 mm (Polished)
Unsupported Wall Thickness Min
0.6 mm (Natural)
0.8 mm (Polished)
A supported wall is connected at least on two sides of the wall, while an unsupported wall is connected only on one side of the wall. Walls that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wall geometry of the model. Please consider the size of your model and reinforce the walls or add support structures as needed as minimum guidelines will not always be adequate for large models.

Wires

Supported Wires Min
0.8 mm
1.5 mm for Interlocking Parts
Unsupported Wires Min
1.0 mm
1.5 mm for Interlocking Parts
A wire is a circular, rectangular or even triangular feature that is thinner in its unconnected directions than its length. A supported wire is connected at least on two sides of the model, while an unsupported wire is connected on one side of the model. Wires that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wire geometry of the model. Please consider the size of your model and reinforce the wires or add support structures as needed as minimum guidelines will not always be adequate for large models.

Details

Details Min Embossed
0.35 mm high & wide (Natural),
0.4 mm high & wide (Polished)
Details Min Engraved
0.3 mm high & wide (Natural),
0.35 mm high & wide (Polished)
For text, the ratio between width and depth, should be 1:1 and sans-serif fonts are preferred for line weight consistency.

Escape Holes

Single Escape Hole Diameter (Min)
4.0 mm
Multiple Escape Hole Diameter (Min)
2.0 mm
Escape holes are necessary to empty the support material of a hollow model. Two escape holes at the opposite ends of the model is optimal for the support removal process. Please consider the size of your model and make the escape holes bigger or add more escape holes as needed as minimum guidelines will not always be adequate for large models.
A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.

Clearance

Min
0.3 mm
1.0 mm for Interlocking Parts
Clearance is the space between two individual parts in a model. If the space among the individual parts do not meet the minimum clearance, then parts can fuse together or can be difficult to clean. This is important for movable pieces like hinges, gears, etc.

Interlocking & Enclosed Parts

Interlocking
Yes

Enclosed
Yes

Parts in File

Max
Up to 2 identical parts (like earrings or cufflinks) may be uploaded in the same model file. We cannot accept multiple, unique, non-interlocking parts ordered in the same model file; there should be one file for each unique part.

Accuracy

Accuracy Your model may shrink about 0.25 mm plus 2.5% after casting and finishing. For rings the inner diameter is accurate within +/- 0.1 to 0.15mm. On average, the model shrinks about 2.5% after casting and finishing. We do our best to polish the internal diameter to match your model file.
For example: a product with dimensions of 50 x 50 x 100 mm can be 0.25 mm + 0.0025*100 mm = 0.5 mm smaller in any direction.

Related Materials

Platinum
Application: Women's and Men's Jewelry including Bracelets, Pendants, Rings, Cufflinks, and Tie Bars
Learn More →
14K or 18K Electroplated Gold on Brass
Gold Plated Brass
Professional Smooth Finish
High Strength, Durability
Application: Women's and Men's Jewelry including Bracelets, Pendants, Cufflinks, and Tie Bars
Learn More →

Stay up to date on promotions, case studies, and more.