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Radonix Lego

The Next Level of Modular CNC Control

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Radonix Lego modular CNC control board with multiple axis and I/O module slots
Front view of Radonix Lego modular CNC control system showing control unit, axis modules, and I/O modules

Lego

Radonix Lego is a fully modular CNC control system comprising a Control Unit (Lego-CU), 2-Axis Modules (Lego-XM), and Configurable Digital I/O Modules (Lego-DM). Instantly add or remove axes and I/O to match your exact needs—never pay for unused capacity.

Radonix Lego modular CNC control board with labeled control unit, axis modules, and digital I/O modules

Modules & Key Features

1. Axis Modules (Lego-XM)

 

  • Per module: 2 independent motion axes
  • Maximum: 8 modules ⇒ 16 total axes
  • LED indicators: “Status” + “Step/Dir” per axis
  • Installation: Slide onto DIN-rail, auto-addressing over the backplane

2. Control Unit (Lego-CU)

 

  • Role: Coordinates all modules and provides Ethernet/TCP-IP link to PC
  • Power & bus: 18–30 V supply, DIN-rail bus for data and hot-swap detection

3. Digital I/O Modules (Lego-DM)

 

  • Standard Configuration: 8 opto-isolated inputs (X0…X7) + 8 switchable outputs (Y0…Y7)
  • Maximum: 8 modules ⇒ 64 inputs / 64 outputs
  • Flexible Assignment: firmware-configurable pin-to-pin I/O mapping, active-high/low selection, debounce (1–50 ms)
  • Protection: short-circuit current limiting with automatic reset
  • LEDs: per-channel status indicators + overall health LED
SetupAxesI/OUse-Case
1 XM + 1 DM2 axes8 in / 8 out3-axis router + basic sensors
2 XM + 2 DM4 axes16 in / 16 outCompact pick-and-place line
4 XM + 4 DM8 axes32 in / 32 outMedium-sized machining center
8 XM + 8 DM (max.)16 axes64 in / 64 outFully automated production line

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