I see there have been no postings for awhile here, but I just got my Maslow and am looking at doing a Unistrut frame as well.
In regards to the discussion for moving the motor mounts for aligning to the work peice, has anyone thought of 3d printing two laser pointer mounts for the chain attachment points on the sled, so that the lasers can point to the motors which will have a target mounted on them. To align the motor mounts you would adjust until the laser is lined up with the target?
Has there been any other progress on the unistrut builds?