K40 eBay Chinese CO2 Laser Cutter - Flashing the Arduino UNO with GRBL Part 2!

Please visit http://www.DIY3DTech.com for more information on this and many other projects! As in this episode we will be we will be looking at slightly modifying the GRBL code (define VARIABLE_SPINDLE) as well as flashing the Arduino with the GRBL firmware. Looking for your own 40 Watt Laser: http://goo.gl/aqPMJ3 US Ship Arduino CNC kit UNO R3 + Shield + 4 x A4988 Drivers: http://goo.gl/xdjzIY Download GRBL here: https://github.com/grbl/grbl More on changing define VARIABLE_SPINDLE as well as flashing the Arduino with the GRBL firmware: http://blog.protoneer.co.nz/grbls-pwm-functionality-how-to-control-a-laser-or-variable-speed-spindle/ Download the Arduino IDE here: https://www.arduino.cc/en/Main/Software Subscribe to the DIY3DTech YouTube Channel: http://YouTube.DIY3DTech.com Subscribe to the DIY3DTech OpenSCAD Channel: http://openscad-youtube.diy3dtech.com If your looking for looking 3D Printer, Laser Cutter and CNC Swag (T-Shirts, Hats, Mugs, etc), please support the channel by visiting our online shop at: http://swag.DIY3DTech.com