From CAD to CAM: managing your DXF files in a CNC workflow
By Sébastien · · 5 min read
A CNC workflow chains three families of files: the drawing (DXF/DWG from CAD), the CAM project (toolpaths), and the G-code sent to the machine. If nothing links them, you machine a part from the wrong version — and the material is gone. This article is part of the guide on the laser / CNC / 3D workshop workflow.
Three files, one intent
The DXF describes the geometry, CAM (Fusion 360, VCarve, etc.) generates the toolpaths, the G-code executes. The problem isn't having these three files, but knowing which ones go together and which is approved. A library that groups them by project prevents mix-ups.
Check the drawing before CAM
A DXF with open contours or wrong units produces a faulty toolpath. Check the geometry before going into CAM: see preparing a DXF drawing for CNC machining. A dedicated tool like DXFFile detects and fixes these flaws upstream.
Keep the drawing → CAM → G-code link
Gather the drawing, the CAM project, and the G-code into a single collection, with the approved version clearly identified and the machining recipe attached. PandaFile previews DXF files and tags each job; keep your machining settings per material with the file.
To structure things long-term, see organizing your CNC files.
Frequently asked questions
Does PandaFile do CAM?
No: CAM (toolpaths) stays in your dedicated software (Fusion 360, VCarve…). PandaFile manages the library upstream — finding, previewing, and linking the drawing, CAM project, and G-code.
How do I avoid machining the wrong version of a drawing?
By clearly identifying the approved revision and relying on previews rather than nearly identical file names. Grouping the drawing, CAM, and G-code by project reduces the risk.
Should I check the DXF before CAM?
Yes: open contours, duplicates, or wrong units distort the toolpath. An upstream check (for example with DXFFile) prevents surprises on the machine.
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