Have to go away for 10 days on work/holiday: attending a conference overseas and taking a few days off. You won't be hearing from me during that time. Just want to let you know that I am not abandoning the project, just taking some time off due to work commitments.

Did some testing yesterday loading the HiCAT robot sketch to test the laser. It was strange, when I was connecting to JiCAT's Leonardo using a USB cable, the laser worked. When detached, it did not work. Yes, the main power source was connected all the time. This appears to indicate a power issue. However, looking at the specs, the step-down converter TPS54329 has current out max at 3A! 

Need to investigate further when I am back.