3d printer CNC Shield V3.0 + driver DRV8825 Arduino Uno R3

Features amp; details CNC Shield for Arduino CNC Shield V3 】 【 Latest Edition of version 3.0; Support 4 axis (x, y, z, a-puede Double X, Y, Z or make a 4to – Complete with Custom Firmware using the pins D12 and D13) 【 Compatibility 】 Compatible GRBL 0.9 (open source firmware that runs on a one for Arduino UNO that turns G-code commands into step by step) 【 】 bridges to configure the micro-stepping Stepper Drivers (some as the DRV8825 Drivers can make up to 1/32 micro-stepping); 【 DRV8825 】 DRV8825 is the upgrade of A4988, 4-capa PCB for improved heat dissipation and decrease the resistance of the chip