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How to connect laser module to cnc sheild v3.0 · Issue #368 · arkypita/LaserGRBL · GitHub | Cnc, Arduino cnc, Cnc controller
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Connecting 7 Watt laser to Arduino Uno with CNC Shield · arkypita LaserGRBL · Discussion #904 · GitHub
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How do I plug these 3 wires endstops to only 2 pins CNC Shield ? I guess red is +, black is - and green is signal ? : r/hobbycnc
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