89mm x 89mm x 100mm
2.4mm x 2.4mm x 0.6mm
Your model should be within the minimum and maximum bounding box sizes. The maximum bounding box represents the largest model that our printers can produce. The minimum bounding box size is the smallest dimension in which we can print in this material.
Min Supported Wall Thickness
0.6mm (Natural Copper)
0.8mm (Polished Copper)
Min Unsupported Wall Thickness
0.6mm (Natural Copper)
0.8mm (Polished Copper)
A supported wall is connected on at least two sides. Walls in your model must meet the minimum measurements to ensure it survives the printing and cleaning process. Thin walls are prone to warping during printing and are fragile to clean. Objects that meet the minimum requirements may still be rejected based on the geometry in which case our production team will communicate with you if the design needs improvements and can assist you to strengthen your model.
Min Supported Wires
Min Unsupported Wires
A geometry is considered a wire when it is thinner in both unconnected directions than its length. Wires that are under our suggested minimums are prone to breaking in the cleaning process.
Min embossed detail
0.3mm high & wide (Natural Copper)
0.4mm high & wide (Polished Copper)
Min engraved detail
0.3mm deep & wide (Natural Copper)
0.35mm deep & wide (Polished Copper)
We recommend these minimum measurements for details like embossing or engraving, based on printer resolution.
Single Escape Hole Diameter
Multiple Escape Hole Diameter
Escape holes allow unbuilt material inside hollow products to be removed.
To create Copper products, a plaster mold is poured around a wax print of your product, and then Copper is cast into the plaster mold. For products with hollow areas, escape holes are essential for two parts of this process. First, the liquid plaster must be able to enter the hole to fill in the hollow area. Then, once the metal is cast, the escape hole must be large enough to allow removal of the hardened plaster from the hollow area. If escape holes are too small, the hollow area may be completely filled in with metal or plaster.
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 is the space between two parts, e.g. space between gears or a ball and socket joint.
INTERLOCKING AND ENCLOSED PARTS ?
No. Models with interlocking or enclosed parts cannot be ordered in Copper.
MULTIPLE PARTS ?
Up to 2 identical parts (like earrings or cufflinks) may be uploaded in the same model file. We cannot accept multiple, unique parts ordered in the same model file; there should be one file for each unique part.
Models can shrink about 2.5% after casting and finishing. For rings, we do our best to polish the internal diameter to match the dimensions of your model file.
Some details are lost during polishing
Polishing gives this material a beautiful finish, but can have an impact on fine details. During the polishing step, fine or sharp-edged details may be polished down or even broken off. Keep this in mind when you're designing fine details.
Internal cavities can not be polished
We can only polish well-reachable surfaces, so tight internal spaces may remain unpolished.
This material will leave green stains on the skin after long term wear
Copper will react with chemicals on the skin and leave green stains. The staining is harmless, but often undesired. This material is therefore less suited for rings.
Keep embossed and engraved details shallow
Engraved details must not be too deep, and embossed details must not be too tall. The width of your detail must be the same or greater than how far it juts out from the surface (or sinks in for engraving). Engraved details that are too deep will cause issues when casting. Embossed details that are too tall are more likely to chip and break during production (unless the detail meets the minimum wall requirements).
Stone holding prongs should be short
Prongs for holding stones cannot be too long without anything connecting them. This connecting beam is to prevent the wax from breaking away. Also, with thin and long prongs, the product will not be able to hold big stones. Make sure your stone will sit snug and tight.
How will the price of my model be calculated?
- Material Volume - the amount of material needed to 3D print your product
- Production - associated production costs including labor; quality control; machine maintenance; general utilities; and other supporting services required to 3D print your product
What is the minimum price per model?
- Natural - $17.50
- Polished - $20