32.5mm Stacker

Perfect for full-size 1 oz gold bullion coins from major global mints

Overview

32.5 Stacker

Design

32.5 Stacker

Dimensions

Feature Value
Inner Diameter 32.5 mm
Base Diameter 35.0 mm
Total Height 88.0 mm
Cap Height 14.0 mm
Tube Height 74.0 mm
Base Recess -1.0 mm
NFC Badge Slot Ø25 mm × 1 mm (snap-fit)
  • Primary Use: 1 oz gold coins
  • Part Numbers:
    • Tube: T-32
    • Cap: C-32

32.5 Stacker

Compatible Coins

Coin Name Diameter Thickness Mint
1 oz Gold Maple Leaf 30.00 mm 2.80 mm Royal Canadian Mint
1 oz Gold Panda 32.05 mm 2.70 mm China Mint
1 oz Gold Kangaroo 32.10 mm 2.65 mm Perth Mint
1 oz Platinum Maple Leaf 30.00 mm 2.87 mm Royal Canadian Mint

Note: Panda coin sizes have changed over the years; recent issues are 32.05 mm, earlier issues may differ.

Specifications

  • Recommended Coin Diameter: 30–33 mm

  • Typical Coin Thickness: ~2.7–2.9 mm

  • Designed for 1 oz gold coins
  • Accommodates high-relief designs
  • Perfect fit for sovereign mint bullion

Magnetic System

Magnet Type: Ceramic/Ferrite 1” (25mm) diameter × 4mm 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 standard 1 oz gold coins
  • Enhanced base diameter for heavier coins
  • Well-balanced for safe vertical stacking
  • Precision fit accommodates slight mint variations

Model Files

  • 3D models will be available soon on Makerworld! Makerworld

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Required Components

See the Bill of Materials for full details.

  • Tube STL file (T-32.stl)
  • Cap STL file (C-32.stl)
  • NFC badge (badge-32.5.stl)
  • 2× Ceramic/Ferrite magnets (25 mm × 4 mm)
  • 1× NTAG215 NFC tag