Lost wax casting is a centuries-old metal casting technique combined with modern 3D printing for jewelry making. By using 3D printing to create precise wax patterns, designers achieve exceptional detail, complex shapes, and professional finishes that would be impossible with traditional metalworking.
This investment casting method is perfect for custom gold jewelry, bronze sculptures, and one-of-a-kind metal accessories. From engagement rings to collectible miniatures, 3D printed wax casting opens limitless creative possibilities.
What Can You Create with Cast Metals?
- Custom jewelry and rings – Gold, silver, platinum, and bronze
- Art and sculptures – Detailed ornamental or miniature works
- Home decor and accessories – Brass, bronze, or copper pieces
- Interlocking and moving parts – Mechanical or fashion accessories
- Personalized gifts and collectibles – Keychains to designer keepsakes
How Lost Wax Casting Works
The investment casting process transforms wax patterns into metal:
- A wax pattern is 3D printed from your digital design
- The wax model is encased in a plaster mold
- The mold goes into a kiln — wax melts away leaving a hollow cavity
- Molten metal is poured into the cavity
- After cooling, the plaster mold is broken away
- The metal piece is cleaned, polished, and plated as desired
Casting Materials: From Silver to Platinum
| Metal | Composition | Best For | Properties |
|---|---|---|---|
| Brass | 80% Cu, 15% Zn, 5% Sn | Jewelry, miniatures, decor | Rich golden hue, engraves well |
| Bronze | 90% Cu, 10% Sn | Vintage jewelry, sculptures | Deep reddish hue, marbled effect |
| Copper | 100% Cu | Jewelry, accessories, decor | Vibrant red-orange, natural patina |
| Silver | 92.5% Ag, 7.5% Cu | Fine jewelry, rings | Highly polishable, timeless finish |
| Gold | 9K–18K options | Fine jewelry, heirlooms | Yellow, white, or rose |
| Platinum | 95% Pt, 5% Ru | High-end jewelry | Premium, durable, tarnish-resistant |
Cast Metals Design Guidelines
| Design Consideration | Specification |
|---|---|
| Shrinkage | 0.25 mm + 2.5% during cooling |
| Ring inner diameter tolerance | ±0.1 to 0.15 mm |
| Minimum bounding box | 2.4 × 2.4 × 0.6 mm |
| Maximum bounding box | 89 × 89 × 100 mm |
| Interlocking parts max | 75 × 75 × 40 mm |
Why Choose Hi3D’s Casting Metal Service?
Hi3D deeply integrates traditional craftsmanship with modern 3D printing technology. Our AI image-to-3D model generation capabilities allow you to quickly create high-precision models directly used for wax pattern printing, significantly shortening the production cycle from concept to finished metal piece.
Starting from your digital model, we provide a one-stop service — printing wax patterns, precision casting, and delivering finished metal pieces. Whether you’re a jeweler seeking custom ring casting or an artist exploring bronze 3D printing, Hi3D offers end-to-end metal 3D printing solutions with quality assurance for every piece.
Supported file formats: OBJ, STL, 3MF, FBX, GLB, and more
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