Use Cases: Carpenter

Cattail.Nu SpaceCube turns Vision Pro into a spatial tape measure, level, and slope gauge. It reads distances in feet and inches down to the nearest 1/64", shows a bubble level and a plumb vial, and gives pitch in inches‑per‑foot — the numbers a carpenter actually uses. Everything is measured center to center between cubes you place by hand.

Why it fits the shop and the site

  • Fractional inches. Distances read in feet and inches to 1/64", alongside metric and decimal.
  • Level and plumb in one. The measurement window's bubble reads horizontal for side‑by‑side cubes and switches to plumb for stacked ones.
  • Pitch and slope. Read grade as a percent or as inches per foot straight off the line between two cubes.
  • A real midpoint marker. Every measurement line marks its 1/4, 1/2, and 3/4 points — instant centers.

Small‑scale ideas

  • Center a fixture. Place cubes at two edges and read the midpoint marker to find dead center for a cabinet pull, a light, or a wall plate (see How To - Find a Canvas Center for the same trick).
  • Check a shelf is level before you screw it down — center the bubble and confirm the ANGLE reads near 0° (see How To - Level a Picture).
  • Measure a board or opening by placing a cube at each end; read the fractional inch distance.
  • Confirm a square corner. With three cubes at a corner and its two edges, the angle window tells you if it is truly 90°.
  • Transfer a height. Read a cube's world Y at one spot, then match it elsewhere.

Large‑scale ideas

  • Assess a ramp's grade. Place a cube at the bottom and top of a ramp and read SLOPE and PITCH to check it against code (see How To - Assess a Handicap Ramp).
  • Find the center of a deck or floor using the diagonal midpoint marker (see How To - Find a Deck Center).
  • Lay out stair or roof pitch by reading inches‑per‑foot between two cubes set on the run and rise.
  • Rough‑in spacing across a wall or floor: drop cubes at stud or joist marks and read the gaps.
  • Check a floor or beam for level over a long span — the Horizontal bubble and the Y‑axis separation show sag or fall end to end.

Getting accurate readings

  • Turn on the pivot point and set that center right on your mark; measurements run center‑to‑center, not surface‑to‑surface.
  • Walk to each point and place the cube close and slowly. Look at it from multiple sides.
  • Cubes pin to your immersive space, so a layout survives a Pause/Restore — mark up a job, step away, come back to the same points.

Save the job

Export a TXT report of all your distances, slopes, and angles to keep with the job file (see Action - Save Your Data (TXT, SVG, 3D)).

A note on scope

The app measures the cubes you place; it does not snap to edges or surfaces on its own. Precision comes from careful hand placement, so line up the pivot point and take your time on tight work. Look at your cube from multiple locations.