I bought this on ebay a while back, it was advertised as non-working.
I purchased it mainly for the 532 that was included. When I got it, one axis was definitely not working. I metered the cables and did a few tests on the board, but everything looked good to me. I then used compressed air to blow out the sensors on the galvos, and the second axis came back to life. There are a few adjustment pots in there that I am sure could stand to be tweaked. Now that it is working, it has just sat in a box for over a year.
It works, but it is definitely in used/as-is condition. I don't have a manual for it, but after playing with it, it seems like it would be OK for a beam table as an added source of beam effects.
I don't know what it is worth, if anything- so if anyone already has one of these and would like another to use as a spare, or someone wants to experiment with it to make some beam effects, etc. I would part with it for???
This is for the GScan, and controller box & pad, not the 532 (that's now happily mounted in my RGB)
Thanks, Mike