HELLO ACMER TEAM, I REALLY ENJOYING PLAYING WITH THIS MINI LASER MACHINE, I TRYLING TO LEARN ABOYT SOFTWARES MORE, I'M USING lasergrbl AND AMCER TOOL BETA, ACMER TOOL IS MORE USEFUL AND EASY TO LEARN BUT ITS MORE LIMITED COMPARE TO GRBL, ICOUNT FIND IN GRBL HOW TO SET MULTIPLE WORKING STUFF AND TO CENTRALIZE ON OBJECT, IM NEW IN THIS FIELD. BUT LIKED, ANOTHER STUFF, THE LASER MODULE AT 2.5W IS REALLY SMALL AT POWER I WILL ORDER AROUND 6 OR 10 W MODULE. FOR ENGRAVE STONES AND ROCKS