52.0mm Stacker
Built for the largest standard bullion coins — 2 oz silver
Overview
Design
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Dimensions
| Feature | Value |
|---|---|
| Inner Diameter | 52.0 mm |
| Base Diameter | 60.0 mm |
| Total Height | 86.5 mm |
| Cap Height | 14.0 mm |
| Tube Height | 72.5 mm |
| Base Recess | -0.5 mm |
| NFC Badge Slot | Ø25 mm × 1 mm (snap-fit) |
- Primary Use: Large 2 oz silver coins
- Part Numbers:
- Tube: ‘T-52’
- Cap: ‘C-52’
Compatible Coins
| Coin Name | Diameter | Thickness | Mint |
|---|---|---|---|
| Australian Kookaburra (2 oz) | 52.0 mm | 6.6 mm | Perth Mint |
| Australian Lunar Series (2 oz) | 52.0 mm | 6.6 mm | Perth Mint |
| Chinese Silver Panda (2 oz) | 52.0 mm | 6.0 mm | People’s Bank of China |
| Mexican Libertad (2 oz) | 48.0 mm | 6.0 mm | Casa de Moneda de México |
| South African Krugerrand (2 oz) | 50.0 mm | 5.5 mm | South African Mint |
Note: This stacker is optimized for standard 2 oz silver coins. These are among the largest commonly-traded bullion coins.
Specifications
- Recommended Coin Diameter: 47.5-52.0 mm
- Typical Coin Thickness: ~5.5-6.6 mm
Capacity
- Standard tube (72.5 mm height): Holds ~10–12 coins depending on thickness
- Designed for 2 oz silver coins
- Accommodates nearly all major 2 oz bullion coins on the market
- Perfect for Australian Kookaburra and Lunar collectors
Magnetic System
Magnet Type: Ceramic/Ferrite, 25 mm × 4 mm thick
- Locations:
- Lid (South polarity up / hole down)
- Base (North polarity up / hole up)
- Configuration: Embedded into each part during printing
NFC Integration
- Tag Type: NTAG215 (25 mm round)
- Placement: Inserted into badge slot after printing
- Scan Area: NFC badge face
- Compatibility: Most NFC-enabled smartphones
Technical Notes
- Optimized for 2 oz silver coins
- Maximum stability with 60 mm base
- Robust vertical stacking capability
- Ideal for collectors of large-format bullion coins
- Important: Because of their weight and thickness, 2 oz coins may stack differently compared to 1 oz series. Ensure magnets and NFC tags are seated securely before long-term storage.
Model Files
- 3D models will be available soon on MakerWorld! MakerWorld
Navigation
Required Components
See the Bill of Materials for full details.
- Tube STL file (
T-52.stl) - Cap STL file (
C-52.stl) - NFC badge (
badge-52.0.stl) - 2× Ceramic/Ferrite magnets (25 mm × 4 mm)
- 1× NTAG215 NFC tag