CircuitMill — PCB to CNC

Cut out the PCB with holding tabs

Generate PCB outline milling paths with stepdowns and holding tabs. Preview internal openings and the final outside cutout before exporting GRBL G-code.

Choose a cutout tool

Select an end mill and configure the cutting depth and stepdown for the stock thickness. Review tool clearance and secure the board and any loose waste pieces.

Keep the board attached with tabs

Set holding-tab count, width and thickness. Tabs are placed on exterior contours and appear in the toolpath preview. Internal openings are cut through without tabs.

Cut out last

Finish copper isolation and drilling before releasing the board. CircuitMill plans internal openings before the external perimeter and exports the cutout as a separate operation.

Enable JavaScript to import boards, generate toolpaths and use the milling console. PCB files are processed locally in your browser.

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