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Material Information
Design Guidelines


925 Sterling Silver


Polished Silver

About Silver

Sterling Silver (92.5% silver) is a high quality silver alloy commonly used in jewelry and other skin-safe applications. With several finishing options and the ability to showcase intricate details, silver offers a professional, finished look and feel. Silver will tarnish over time, but can be polished back to achieve a like-new surface. It is also a softer metal that will be more malleable with thin features.

Common Applications

Women’s and Men’s Jewelry including Bracelets, Pendants, Rings, Cufflinks, and Tie Bars

Handling and Care

Good Electrical Conductivity
Heatproof to 850C/1562F

High Quality & Shiny Finishing

Skin-friendly 925 Sterling Silver

High Electrical and Thermal Conductivity

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Frequently Asked Questions

What finishes are available?

Natural: Light polishing to achieve a matte, somewhat rough surface
Polished: Hand-polished to achieve a smooth, shiny surface
Fine Detail Polished: Extensive polishing will reach intricate details, achieving a very shiny surface. Extra polishing will remove more material so some details may get lost from polishing.
Antique: Recessed details blackened to achieve a steampunk look

How long will it take before I receive a model in this material?

Production time depends on the size of the design and the chosen finish. If a model is larger than 56 mm in all dimensions the production time is 11 business days and 16 business days for the premium finish with Priority manufacturing. For smaller models, the production time is 8 business days for unpolished, 9 for the polished finish and 10 business days if the model contains interlocking parts for Priority manufacturing. The shipping time depends on your location.

How is this material made?

Silver models are fabricated using lost wax casting. First, the model is printed in wax using a specialized high-resolution 3D Printer. It is then put in a container where liquid plaster is poured in around it. Once the plaster sets, the wax is melted out in a furnace, and the remaining plaster becomes the mold. Molten silver is poured into this mold and set to harden. Finally, the plaster is broken away, revealing your new product.

Why is there a limitation of 6 interlocking parts per file?

For interlocking parts, we connect each wax part with a sprue and then cut and polish the sprue away after casting. Due to the intensive labor involved in every part we connect, we limit the number of parts allowed. Note that interlocking parts are only possible for Natural and Polished finishes.

Technical Documents

More Metals

Professional Finish

Good Value

Capable of Intricate Details

Lost Wax Casting
Professional Finish
Skin-friendly 14K & 18K Gold
Capable of intricate details
Lost Wax Casting
  • Bounding Box
  • Wall Thickness
  • Wires
  • Surface Details
  • Escape Holes
  • Clearance
  • Interlocking Parts
  • Multiple Parts
  • Accuracy
  • Design Tips
  • Pricing


89 ×89 × 100 mm (Natural, Polished, Fine Detail Polish, Antique) 75 × 75 × 40 mm (Interlocking Parts)
2.5 × 2.4 × 0.6 mm

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.


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.


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.


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.


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.


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.


Yes, up to 6.


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


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.

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.


Some detail is 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 detail can not be polished

We can only polish well-reachable surfaces, so tight internal spaces may remain unpolished.

Surface is soft for polished materials

As with other precious metals, the polished surface of silver is soft, so scrapes and scratches are to be expected as a normal part of wear. To minimize damage and ensure your product lasts a lifetime, we recommend storing your jewelry or other products in a soft cloth pouch and away from other products. Avoid exposing the product to household chemicals during cleaning as they can be damaging to the finish. Use a silver polishing kit to maintain a glossy surface.

Remember! Polishing is a subtractive process in which material is removed to create a shiny surface. The Premium Silver finish receives significantly more polishing than the other finishes, so fine details and surface textures may be lost.


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

* Note that the price of precious metals may fluctuate based on international market demand. This may impact the underlying material price.

What is the minimum price per part?

  • Natural - $17.50
  • Polished - $20
  • Antique - $25
  • Fine Detail Polished - $27.50



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