I've recently purchased 4 mercury stepper motors and 4 easydriver stepper motor drivers. I got them working, turning the right amount of steps etc. But when i put the wheels on and mount the motors on the chassis of my robot the motors dont have enough power to start riding. they only vibrate but cant get to the next "step". I've tried to make the delay betweens steps much bigger (even to 5000 microseconds) but the motors dont have the strength to start turning.
This is my setup:
The weight of the robot is not that heavy. Only the motors, one hard cartboard plate, my arduino and a 6 cell AA battery pack.
The easydriver gets his power from the arduino board and works on 5v.
I was so stupid to try a 12 volt adapter to power the easydriver but it got really hot and I got the same results.
The stepper motor makes 200 steps per revolution.
I can't find a solution myself, I have googled 2 days but i can't find a real solution.
Thanks for all the support on this forum