I had a cardboard project to do that would not fit in the bed, so I needed to use the pass through slot on my Pro. Using no jigs or even the straight side of the tray (my material was not straight on either side) but just visual alignment using the Set Focus function, I got near perfect alignment:
Left side (arrow shows join point):
And being the frugal person I am, I wanted to squeeze a part out that barely fitted on this piece of cardboard:
We don’t hear a lot of complaints about alignment any more since the camera calibration routine and the set focus function have been implemented, but the huge improvement that I have seen on my own machine since I first received it in January 2018 still has me in awe. Thanks for all your hard work, Team Glowforge!