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OpenBuilds C-Beam CNC Machine

  • $ 67999

The C-Beam Machine® (assembly required) is a CNC machine designed to be suitable for cutting custom plates and other projects in harder materials.

The C-Beam® Machine is based on the popular V-Slot® linear guide system and uses C-Beams, the stiffest V-slot rail to date for its linear actuators. The C-Beam® design incorporates a C-shaped profile and a lead screw based motion system, which gives added strength and functionality. With the correct end mills and settings, the C-Beam® Machine is capable of cutting and milling materials such as:

  • Aluminum and other non-ferrous metals
  • Oak and other hardwoods
  • Plexi-Glass
  • Delrin
  • HDPE
  • Foam
  • Any much more!


The C-Beam machine is modular and based on opensource hardware and design plans, making it easy to modify and configure the machine based on your own needs!


 Travel (Work Area) X Axis    13.5" (350mm)
Y Axis    11" (280mm)
Z Axis     3.5" (~85mm) 
Overall Machine Base Footprint 21.5" x 20" (546mm x 500mm)
Workable Material Height 1.25" (~31mm) Based on a 1/2" spoiler board stack
Drive System: Lead Screw Driven
Machine Accuracy 0.001"~0.003" (0.05mm~0.10mm)
Compatible materials for cutting/milling Aluminum, Softwoods/Hardwoods, Acrylic/Plexi-glass, Delrin, HDPE, Foam, and more


Bundle Includes (depending on options selected):

Options Details:

Other Items Needed (Sold Separately):

  • (1) Spoiler Board H 1/2" (13mm),  W 12" (304mm), L 12" (304mm)
  • (1) Dewalt DWP611 Router (or another suitable spindle/router and compatible mount)
  • Assorted end mills/router bits
  • Appropriate control software (Openbuilds has free control options available here). 

Assembly Instructions and Videos:


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