Trace, Resize & Quick peek of the Glowforge UI

Something I noticed (could be angle or quality of video too) is that when @dan placed the little face on screen inside the first eye it was cut much farther left than it was placed in the image. Are there rulers on the bed for material alignment? Is there some kind of calibration stage to make sure the image/camera placement matches actual cut placement? How do you handle cutting when precision placement is required? For example, I have an iPhone that’s a one shot, I can’t screw it up. In a Trotec I’d align it with the right and top guide rail and place the engrave plate 4mm in from both edges to ensure correct placement of the engrave. Is something similar possible with GF? Eyeballing and camera placement is a cool gizmo, but by the numbers placement is often more valuable.

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