Electrobot Professional 3D Printer CNC Kit for Arduino Uno R3 with CNC Shield V3 + Stepper Motor Driver + Mechanical Switch Endstop Electronic Components Electronic Hobby Kit

CNC Expansion Board: -GRBL 0.9 compatible.; -Runs on 12-36V DC.; -4-Axis support: X, Y, Z.; -It can drive 4 stepper motors, and each stepper motor only needs 2 IO ports.; -That is to say, 6 IO ports can manage 3 stepper motors very well, which is very convenient to use.///// DRV8825 Stepper Motor Driver: -Applied for driving stepper motors up to 8.2V-45V 2.5A.; -4-layer PCB board (better heat dissipation).; -6 different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step.///// Mechanical Switch Endstop: -Length of Cable: 70 cm; -Red line --- VCC (ramps of +); -Black wire --- GND (ramps of -); -Green Line --- SIGNAL (ramps in s).///// Package Contents: 1x CNC Shield Board; 1x Uno R3 Board; 4x DRV8825 Stepper Motor Driver with Heat Sink; 4x RAMPS Mechanical Switch Endshop; 20x 2.54mm Jumper Caps; 1 x 1.5m USB cable.