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16-Year-Old Creates a Working Laser Engraver From 2 DVD Drives & 3D Printed Parts for $30 - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing
Davide Gironi: A DIY A4 Laser Engraver made from a scanner and a printer on ATmega328
Laser PCB Exposer Built From CD-ROM Drives | Hackaday
How to Turn a Pair of Old CD Drives Into a Simple Laser Engraver - Hackster.io