The synthetos.com grbl shield is a "out of box" solution for Simen Svale Skogsrud's grbl Arduino CNC Framework. You can find all needed information for acquiring, flashing and configuring the grbl shield below.
What is a grblShield? - Grblshield is a 3 motor controller board for grbl
Buying the grblShield - Where to purchase grblShield.
Getting grbl - Downloading, installing and configuring the latest build of grbl
Using the grblShield - How to use grblShield
GrblShield References - Reference materials and other handy resources
GrblShield Projects - Projects using grblshield
Please note: grbl requires an Arduino with a 328p such as an Uno or equivalent.
Arduino Megas are not supported by grbl, and the 168 based Arduinos are also no longer supported.
The guides above are good starting place for general information. However if you find yourself stuck and need further assistance, please feel free to jump over to the troubleshooting forums.
Here's a troubleshooting page where we've collected some issues we have seen: Grblshield Troubleshooting
Also, be sure to check out the FAQ .