Silver

BOUNDING BOX

Your model should be 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.

WALL THICKNESS

Min Supported Wall Thickness

0.6 mm (Natural)
0.8 mm(Polished, Fine Detail Polished, Antique)

Min Unsupported Wall Thickness

0.6 mm (Natural)
0.8 mm (Polished, Fine Detail Polished, Antique)

A supported wall is connected on two or more sides. An unsupported wall is one connected to other walls on less than two sides. Walls in your model should be thicker than or equal to the minimum measurements suggested to ensure your model makes it through printing and cleaning. Walls that are too thin are prone to warping in the printing processing, or may break when we remove it from the printer and clean it.

Walls and wires close to or slightly above the guidelines may still be rejected based on the geometry. For example, extra long wires or walls protruding from an object may be damaged during cleaning. Our production team will communicate with you if the design is too weak with tips on how to strengthen it.

WIRES

Min Supported Wires

0.8 mm (Natural, Polished, Fine Detail Polished, Antique)
1.5 mm (For Interlocking Parts)

Min Unsupported Wires

1.0 mm (Natural, Polished, Fine Detail Polished, Antique)
1.5 mm (For Interlocking Parts)

A geometry considered a wire when its thinner in both unconnected directions than its length. Wires that are under our suggested minimums are prone to breaking in the cleaning process.

SURFACE DETAILS

Min embossed detail

0.3 mm high & wide (Natural, Polished, Antique), 0.4 mm high & wide (Fine Detail Polished)

Min engraved detail

0.3 mm high & wide (Natural, Polished, Antique), 0.35 mm high & wide (Fine Detail Polished)

We recommend these minimum measurements for details like embossing or engraving, based off of printer resolution.

ESCAPE HOLES

Single Escape Hole Diameter

4.0 mm

Multiple Escape Hole Diameter

2.0 mm

Escape holes allow unbuilt material inside hollow products to be removed.

To create silver products, a plaster mold is poured around a wax print of your product, and then silver 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.

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

0.3 mm
1.0 mm (For Interlocking Parts)

Clearance is the space between an two parts, e.g. space between gears or a ball and socket joint.

INTERLOCKING AND ENCLOSED PARTS ?

Yes, up to 6.

MULTIPLE PARTS ?

Up to 2. Two features that interlock count as 1 part.

ACCURACY

Polished, Fine Detail Polished and Antique
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.

Natural
Your model may shrink about 0.15 mm plus 1.5% after casting and finishing. For rings the inner diameter will be 0.125 - 0.15 mm smaller than your design. On average, the model shrinks about 1.5% after casting and finishing. Scaling up your model by 1% will make your design closer to your desired size.

DESIGN TIPS