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Rupp Engineering is a group of hands-on engineers. Almost all of our tooling projects are designed, fabbed, machined, and assembled in our Fraser, MI facility.  This keeps costs and lead times low for our customers.  If a project does require a process outside of our capabilities, we have outstanding relationships with our local vendor base.


We have multiple large envelope 3-axis and 5-axis VMC's / HMC's, being programmed by the latest high-speed 3D CAM software. Our engineers are trained to ensure the quality of our final product is consistent with the quality of our designs.

Our Build Capabilities Include:

  • 2D & 3D CNC Machining 

    • Small Detail Vice-work ​

    • Large Molds

    • Multi-piece Assemblies

  • Experience with Various Materials

    • Foam Tooling Boards & Plastics​

    • Cast and Extruded Aluminum

    • Low Carbon Steel

    • Tool Steels - A2, D2, O1, 4140, 8620

  • Casting of Polyurethane for Class-A Nesting

  • Fabrication of AL and Steel Weldments

  • Long Hole Drilling

  • Process Wiring and Pneumatic Plumbing

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