The whole study in seven stops, in order. Each stop is one idea, a short line to say, and the page to open on screen. Walk it top to bottom for a clean run, or jump to any stop.
Start the walkthroughNo single glass does all three jobs well for a full shift, so we split the work across a glass and a phone. We can buy the share or build it ourselves, and the only thing we always build is the rough 3D measurement.