I builded an Egg-Bot myself. Now I've mounted stepper motors with 400 fullsteps per revolution to be able to draw at a higher resolution.
I made some speedtests. As the new motors are 56mm 1,7A 0,89Nm I guess I can drive them pretty fast.
But when I tried more than 1000 steps per second the thing goes crazy. The pen-motor jumps very quickly than
the stepper is stalling. this happends even at 1100. While 1000 steps per second is moving the pen quite easy.
Is this a problem of the firmware? If speeds higher than 1000 steps / sec where used the firmware gets out of snyc?
does anybody now how to manage that?