OpenBuilds Sphinx 55 (20" x 20") CNC

  • $ 1,319.98
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The OpenBuilds Sphinx  (assembly required) is a super strong, accurate, and easy to assemble CNC machine.

The Sphinx's design takes advantage of the inside tracks of the C-Beam linear rail using Xtreme Mini Solid V-Wheels, and utilizes Xtreme Solid V wheels on the outside of the extrusions. This design keeps the lead screws directed towards the outsides of the machine to reduce the likelihood of shavings contaminating them or the V-wheels. member Kyo was the originator of this awesome open source design!


 Travel (Work Area) X Axis    13" (333mm)
Y Axis    12.5" (325mm)
Z Axis     3.2" (~85mm)
Overall Machine Base Footprint 20" x 20" (500mm x 500mm)
Workable Material Height 2.25” ( ~57mm ). 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):

  • Complete parts list
  • We have our OpenBuilds CNC Bundles shipped to our customers directly from OpenBuilds' warehouse so that our customers always receive the most up to date versions of the kits and components!

Options Details:

Other Items Needed (Sold Separately):

  • (1) Spoiler Board H 3/4" (19mm)  W 19.5" (500mm)  L 16.250" (410mm)
  • (1) Suitable spindle/router. We recommend the new Router11 router. The Dewalt DWP611 router is also a very popular choice.
  • Assorted end mills/router bits
  • Appropriate control software (Openbuilds has free control options available here). 

Assembly Instructions and Videos: 

  • OpenBuilds Sphinx NOTE: Although the original Sphinx and the OpenBuilds Sphinx may look similar the OpenBuilds Sphinx incorporates many changes that make it unique in its own way, so be sure to follow the OpenBuilds build videos for assembly. 

OpenBuilds Part CAD Models and Drawings

Available Upgrades:

OpenBuilds XYZ Touch Probe Plus

Add the OpenBuilds XYZ Touch probe to easily and accurately align your CNC to the workpiece before cutting!

J Tech Photonics All-in-One Laser and Mounting Kit Bundle for OpenBuilds CNC Machines 

Attach a laser to your LEAD CNC and take your projects to the next level! (Sold separately through J Tech Photonics)

OpenBuilds INTERFACE CNC Touch Controller

Run jobs from a stand alone, plug & play hand-held pendant!

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