Controlling Stepper using driver+cnc shield problems

Using Arduino Motors, Mechanics, Power and CNC
1

Hello everyone,
I'm using an Arduino board to controll 3 stepper motors via DRV8825 drivers. Drivers are mounted on CNC Shield V3. I'm trying to control the steppers without GRBL, but i somehow don't get it to work.. I found in the internet the pin allocation for the CNC shield (see attachments). I also tried using Robin2's simple Stepper Program just to test it using the allocated pins(e.g. Pin2&Pin5 for x stepper), but without success... Does anyone have some experience using the CNC Shield without GRBL? Is there something else I have to pay attention to using the CNC Shield?

note: Steppers do work if I flash the arduino with Grbl

my setup:

Arduino uno
CNC Shield V3
17HD48002H-22B (Nema17 1.7 A 200steps)
DRV8825

Thanks for your help

Arduino-CNC-Shield-Scematics-V3.XX_.jpg
Arduino-CNC-Shield-Scematics-V3.XX_.jpg903×591 79.7 KB

cnc_shield_v3_3.png

2

Do you enable the stepper drivers by setting Uno (OUTPUT) pin 8 LOW? Have you set the driver current limit as shown in this Pololu page?

3

groundFungus:
Do you enable the stepper drivers by setting Uno (OUTPUT) pin 8 LOW? Have you set the driver current limit as shown in this Pololu page?

Thank You! I tried setting enable output before, but due to copy paste mistake i left it on HIGH, putting it on low fixed it :slight_smile: