I'm building a laser engraver with a school grant, and here is my design!
Features:
coreXY 270mm * 270mm cutting area compatible with all 40mm * 40mm lasers (I'm using a 5w one) Runs on an Arduino UNO with a CNC shield and drv8825 drivers Easy focus adjustment $400-ish for everything, and about 1 spool of PETG All parts print with no supports Can reach the arduino 8-bit speed wall List of materials:
2x Nema 17 16x f623zz bearings 2x gt2 6mm 20tooth 5m bore pulley 5m 6mm gt2 belt Assorted m5 screws Assorted m3 screws m2 t-nuts 3x 500mm 2020 v-slot 2x 500mm 2020 t-slot V-Wheels Eccentric nut/Spacers for V-wheels, 6mm thickness 40mm * 40mm laser (I'm using 5w, but anything will work depending on your budget) 12v @ 6 amp power brick Arduino UNO Arduino UNO CNC shield 2x drv8825 driver Mini bread board I don't really have any instructions or documentation other than the designs for now, but once I polish up this project I'll work on the docs.