Longruner Professional 3D Printer CNC Kit for Arduino GRBL CNC Shield + RAMPS 1.4 Mechanical Switch Endstop + DRV8825 A4988 GRBL Stepper Motor Driver + Nema 17 Stepper Motor (LKB02)

CNC Shield Board: Latest CNC Shield Version 3.0 for Arduino.GRBL 0.9 compatible.4-Axis support (X, Y, Z , A-Can duplicate X, Y, Z or do a full 4th axis with custom firmware using pins D12 and D13).2 x End stops for each axis (6 in total).Coolant enable.Compatible with A4988 or DRV8825 stepper driver.Runs on 12-36V DC.DRV8825 Stepper Motor Driver: Stepper motor driver (upgraded from A4988, 2.5 A max current/phase.It's not Arduino official board but it's compatible with all Arduino software and hardware).Neman 17 Stepper motor Specification: Model No.:17HD48002H-22BStep Angle: 1.8 beholding Torque: 59Ncm(84 oz.in)Rated Current/phase: 1.7AFrame Size: 41 x 41mmBody Length: 47mmShaft Diameter: 5mmShaft Length: 22mmWeight: 380gMechanical End stop Connection Description: Red line connect VCC (ramps of +)black wire connect the GND (ramps of -)Green Line connect SIGNAL (ramps in s)Tips: Under normal circumstances, the system must be configured to at least three mechanical switches.Advantage: Easy to install, the more common used styles.Length of Cable: 70 great Package Includes:1 x CNC Shield Board1 x Logrunner UNO R3 Board1 x 1.5m USB cable for R3 Board3 x Neman 17 stepper motor 1.7 A (with bracket and screw)3 x Neman 17 Stepper Motor Mounting Bracket3 x Mechanical Switch Endstop3 x 3Pin 70cm Cable4 x DRV8825 Stepper Motor Driver4 x Aluminum heatsink w/ 3M tape backing12x M3 Screws for bracket of stepper motor