PCB milling is precise. A Z-offset error of 0.1mm is the difference between a perfect cut and a ruined board. FlatCAM generates the code, but it is up to the operator to zero the Z-axis perfectly on top of the copper stock using a probe or paper method.
FlatCAM is a free, open-source software for generating G-code from SVG files, primarily used for CNC milling, laser cutting, and other applications. This guide will walk you through the basics of using FlatCAM, from installation to advanced features. flatcam
FlatCAM is an open-source, Python-based Computer-Aided Manufacturing (CAM) application designed specifically for PCB prototyping on CNC routers. It acts as the bridge between PCB design software (like KiCad or DesignSpark) and CNC hardware by converting Gerber and Excellon files into G-code. FlatCAM +3 1. Core Functionality Isolation Routing: Generates toolpaths to mill away copper and create isolated electrical traces. Drilling: Converts Excellon drill files into CNC-readable instructions for hole placement and diameter. Board Cutouts: Creates geometry for the final board outline, allowing the machine to cut the PCB from the larger material sheet. Double-Sided Support: Includes tools to mirror bottom layers for accurate double-sided PCB production. YouTube +6 2. Standard Technical Workflow Import: Load Gerber files (for traces/outlines) and Excellon files (for drilling) into the software. Geometry Generation: Define parameters such as tool diameter, number of passes, and overlap to create the intended paths. CNC Job Creation: Set physical machining values, including: Cut Z: Depth of the cut (e.g., -0.15mm for traces, -2mm for holes). Feed Rate: Speed of movement for X, Y, and Z axes. Spindle Speed: Desired RPM for the cutting tool. Export: Save the final instructions as G-code (.nc or .txt files) for use in machine controllers like GRBL or Mach3. YouTube +5 13 sites Relay Calculators: Episode 8 - Using FlatCAM and a CNC mill ... Jun 14, 2020 — PCB milling is precise