I am attempting to build a CNC control unit and need some help!
The main question is regarding the Stepper drivers, I bought the motor control shield with drivers from ebay and assumed the drivers were from Pololu! (Same color) followed on line Vref instructions from Pololu and guess what I could not set Vref "Here it comes" (Cheap Chinese knock offs ) . With the information provided below which Genuine Pololu driver would work best I was thinking DRV8825 Stepper Motor Driver as that was supplied with the board. Any and all Help would be appreciated
I am Dazed and confused!!
Parts being used:
1 Raspberry PI 2 (used as Linux computer to run GRBL programming)
1 7" TFT LCD screen for Raspberry pi2
1 Pi alamode (acting as Arduino interface to motor driver shield)
1 CNC Shield V3 Expansion Board +4PCS DRV8825 Stepper For Arduino
3 Nema 23 Stepper motors, Holding Torque - 1.26NM Rated Current/Phase -2.8 Voltage Current/Phase -2.5vdc Phase inductance -2.5