EPICTAC 3D Printer Kit For Arduino Uno with CNC Shield + Nema17 Stepper Motor + A4988 Stepper Motor Driver + Jumper Caps Educational Electronic Hobby Kit

CNC Shield V3.0: GRBL 0.8c compatible. (Open source firmware that runs on an Arduino that turns G- code commands into stepper signals). 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), Spindle enable and direction Coolant enable.>>>>> Stepping Motor: The most popular Nema 17 model with 1.8 deg. step angle (200 steps/revolution). 0.4A rated current/phase, allowing for a holding torque of 26Ncm(36.8oz.in). Connection:Black(A+), Green(A-), Red(B+), Blue(B-).>>>>> Stepping Motor Specification: Cable length: 11.8 inches; Phase Resistance: 30ohms; Inductance: 37mH+/-20%(1KHz); Frame Size: 42 x 42mm; Body Length: 34mm; Shaft Diameter: 5mm; Front Shaft Length: 20mm; D-cut Length: 15mm; Number of Leads: 4; Lead Length: 300mm; Weight: 230g.>>>>> Package Includes: 1x CNC Shield V3.0; 4x A4988 driver; 1x EPICTAC Uno R3 with USB cable; 1x Nema 17 stepping motor; 20x Jumper Caps.