Pattern making is an old trade skill that has evolved over generations.  Reliable Pattern has spent over 100 years specializing in the manufacturing of foundry patterns and tooling using traditional pattern making standards with modern CAD, CAM and CNC technologies.  Parts and tooling are designed and machined for accuracy, longevity and repeatability.  Tooling is manufactured using all type of materials ranging aluminum and iron to urethane and wood.


  • Types of Patterns: Stack boxes, match plates, cope and drag plates, loose, master, split, family plates, shell and follow board patterns
  • Core boxes: Split, Dump, Shell, Multi-Cavity, Loose pieces
  • Permanent Molds: Iron, steel, multi-Cavity, gating, rigging, devices and ejector systems
  • Rapid Prototyping
  • Reverse engineering
  • Rework, repair and recondition


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3-part core box and loose pieces Stack box Master pattern
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stack box and gating permanent mold split core boxes
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foundry pattern 2-cavity match plate with chain locks

stack box

Foundry pattern Sand core assembly

Assembly instructions

Stack box and magnesium casting