Includes an integrated Autolevelling tool . It allows you to build a custom probe grid directly within the software, read the heights via your CNC connection, and warp the G-code to match the physical topology of your board before exporting. 3. Learning Curve and Documentation
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: Users can visualize Gerbers, Excellon drill files, and the final G-code simultaneously to see exactly how the machine will move. Workflow Tedium
FlatCAM is an open-source PCB CAM program written in Python. It has evolved into a robust platform with a dedicated following due to its high level of customization. FlatCAM: PCB Prototyping CAD/CAM Coppercam Vs Flatcam
: FlatCAM
It includes sophisticated tools for "tweaking" pads, traces, and holes directly within the software.
is a free, open-source program originally written in Python. It can open, edit, and convert Gerber, Excellon, and G-code files into isolation toolpaths for your CNC router. It is community-driven, runs on multiple platforms, and relies on user contributions for development. Includes an integrated Autolevelling tool
Minimal. A hobbyist can download CopperCam and successfully output basic G-code within an hour by following basic prompts. FlatCAM Workflow
You are on a and need a completely free, unrestricted solution.
When prototyping PCBs with a CNC machine, choosing the right Computer-Aided Manufacturing (CAM) software is crucial for converting Gerber files into reliable G-code. and FlatCAM are the two primary choices, with a clear distinction between a polished, paid solution and a free, community-driven tool. Learning Curve and Documentation This public link is
When milling PCBs (Printed Circuit Boards) with a CNC machine, and FlatCAM are two of the most popular tools for converting Gerber files into G-code. While they share the same goal, they offer very different experiences in terms of cost, usability, and advanced features. Quick Comparison CopperCam FlatCAM Price Paid (Free demo limited to 4 layers) Free (Open Source) Ease of Use High (User-friendly interface) Moderate (Powerful but steeper curve) Customization High (Scriptable with TCL) Platform Windows, Linux, macOS CopperCam: The Professional "Easy Mode"
Subtractive PCB prototyping—milling circuit boards with a CNC router—is a fast, chemical-free alternative to traditional acid etching. However, raw Gerber files generated by CAD programs like Eagle or KiCad cannot be directly read by a CNC mill. They must first pass through Computer-Aided Manufacturing (CAM) software to generate G-code.
FlatCAM uses a "Shapely" geometry engine. When you run "Isolation Routing," you set a number of passes (e.g., 3 passes at 0.2mm steps). The software shrinks the copper polygon outward mathematically.
Cross-platform (Native support for Windows, Linux, and macOS).
Because raw PCB blanks are rarely perfectly flat, autolevelling is critical for achieving consistent trace depths.