What is a .CNC file?
A .cnc file holds machine instructions for a CNC mill, router or cutter. Produced by CAM software.
- Did you know
- CNC stands for Computer Numerical Control, the technology behind automated machining.
- Most .cnc files contain G-code, a machine language first standardised in the United States as EIA RS-274 and later by ISO as 6983.
- The numerical-control language behind these files traces back to MIT researchers automating milling machines in the late 1950s.
- What Analyser shows you
- Reconstruct and visualise the printed (or machined) object straight from G-code: every extruded move is drawn as a line in an interactive WebGL viewer, height-coloured and Z-up, with a build-height scrubber to peel the print back layer by layer. Works universally across slicers (PrusaSlicer, SuperSlicer, OrcaSlicer, Cura, ideaMaker, Bambu Studio, Simplify3D) and CNC / laser CAM, handling absolute and relative moves, inch and millimetre units, and G2/G3 arcs; travel moves are separated out. Reads the slicer or CAM tool, object size, layer count and height, filament or cut-path length, feedrate range, and nozzle/bed temperatures.
- Open a .CNC file
- Drag a .CNC file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.