I used Snapmarks for the first time yesterday and they were a huge help. This is the sort of promise that I’ve always felt the Glowforge has had and I hope this is just the first of many such improvements. But there was something pretty awkward.
Normally, when I have done something like this, I have put all the artwork in one file, cut a jig that is held down with magnets, then immediately use the jig to do the work on what goes into it by swapping around what’s ignored and what’s etched/scored/cut. Since jigs are frequently used once (though maybe for multiple items) I will sometimes cut it out of cardboard (watching closely!). This time, however, I was etching something that was 1" tall, so I had to take the crumb tray out. But, of course, I couldn’t cut my jig out of anything that was the same height.
So, I cut a jig out of 1/4" draftboard with the crumb tray in and also etched a pair of snapmarks onto it. Then, I took out the crumb tray and put in a base to raise my 1" item up. But, the jig was going to be 3/4" lower, out of the cut range. So I had to stick some blocks under the jig to raise it up a bit precariously. It worked ok for my single use, but it would have been awful had I been using it over and over again.
I understand the focusing limitations of the laser, but the camera has no such limitations. It would take calibration work, but they ought to be able to recognize snapmarks that are lower than the tray height.