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 This project provides a series of modular parts that can be easily composed to make linear motion axes and machine components. The core of the project is based on:
 
-- Aluminum extrusions, or [3D printed alternative]()
+- Aluminum extrusions, or [3D printed alternative](./#beam)
 - Derlin wheel carriages
 - Grid of tap-in-plastic M5 holes with 10mm spacing