DIY Arduino based CNC laser engraver from DVD drive

Hello! In this video I'm making laser engraver CNC machine from two old DVD drives and Arduino nano

More information in the instructables: https://www.instructables.com/id/Arduino-CNC-Laser-Enrgaver-From-DVD-Drive/

Buy an engraver on Ali: http://ali.pub/1rri84   
OR on Amazon:  http://amzn.to/2x2deBy

Arduino nano on Ali:  http://ali.pub/1r4w1d    
OR on Amazon:  http://amzn.to/2xLTQbE

A4988 step motor drivers on Ali:  http://ali.pub/1r4w4h   
OR on Amazon:   http://amzn.to/2zfpUGd

IRFZ44N on Ali:  http://ali.pub/1rievf   
OR on Amazon:   http://amzn.to/2zfHdqA

Laser 405nm 500mw on Ali:  http://ali.pub/1r4w95  
OR on Amazon: http://amzn.to/2gMWurZ

Laser 445nm 500mw on Ali:  http://ali.pub/1r4wdm  
OR on Amazon: http://amzn.to/2yuRBx2

Laser 650nm 150mw on Ali:  http://ali.pub/1r4wl7  
OR on Amazon: http://amzn.to/2yvWTZf

Firmware GRBL - https://github.com/gnea/grbl
Laser engraving software - http://lasergrbl.com/en/

3D models - https://www.thingiverse.com/thing:249...

Despite the fact that my English is almost perfect, maybe you could notice a small Eastern European accent, it's because I'm Russian, and answering the question "why don't you make videos in both languages?" I actually do, and my Russian channel is here - https://www.youtube.com/user/shhitov

 (the videos are the same, so for English-speaking viewers it makes no sense to subscribe) 
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