Laser driver and a motor driver PCB (BoosterPack) for the MSP430 LaunchPad has been completed. Initial print had a lot of backlash:
Picture taken with half the microstepping needed (Y-axis) for correct resolution, done to reveal individual horizontal lines - they are ~20um high and ~40um apart. Beeing able to discern them means the laser is properly focused.
After tuning the backlash parameter and some mechanical tweaks:
Next, the boring part, write proper documentation...