The synthetos.com grblshield is a "out of box" solution for Simen Svale Skogsrud's grbl Arduino CNC Framework. You can find all needed information for acquiring, configuring and using grblshield below.
What is grblshield? - Grblshield is a 3 motor controller board for grbl
Buying Grblshield - Where to purchase grblShield.
Getting grbl - Downloading, installing and configuring the latest build of grbl
Using Grblshield - How to use grblShield
GrblShield Projects - Projects using grblshield
Grblshield Troubleshooting answers to the most common issues are here. If you are having problems start here.
Grblshield Troubleshooting Forum is available for more help
Grblshield FAQ . GrblShield References - Reference materials and other handy resources
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.