Ass'd Shield+4pcs A4988 Pololus stepper drive

Please note: Stepper Driver Module A4988s are not fully assembled,the headers were not soldered onto the boards.The pictures are just for your reference.
The RepRap Arduino Mega Pololu Shield, or RAMPS for short. It is designed to fit the entire electronics needed for a RepRap in one small package for low cost. This board is mostly based on Adrian's Pololu_Electronics and work by Tonok. Copper etch resists methods suggested by Vik. Also inspired by Vik's work with EasyDrivers. circuit design based mostly on Adrian's Pololu_Electronics Joaz at RepRapSource.com supplied initial pin definitions and many design improvements. Much inspiration, suggestions, and ideas from Prusajr, Kliment, Maxbots, Rick, and many others in the RepRap community.
Package List:
RepRap Mega Pololu A4988 extend Shield x 1
StepStick Stepper Driver Module A4988(Non-soldered headers) x 4
8pin headers x 8