Cutline: Projector Sewing

Project sewing patterns onto your cutting table at true physical size. No printing. No taping
forty pages together. No trimming margins at midnight.

Mount a projector above your table, connect your iPad, calibrate once — then cut straight from
the projected line.


ACCURATE, AND YOU CAN CHECK IT YOURSELF

Calibration starts from a rectangle you already own and can measure: a cutting mat, a quilting
ruler, a square you taped out. Tell the app its real size, drag four corners onto it, and you
are done. That one step fixes scale and keystone distortion together.

Then test it. Project a 100 mm square, lay a ruler on it, and read the measurement. With
correct calibration it lands within half a millimetre. You do not have to take our word for it
— that is the point.


SET UP BEFORE YOU OWN A PROJECTOR

The whole app runs with nothing attached. Pick the resolution your projector will use and the
iPad shows a scaled preview of the projection surface, with the calibration handles sitting
right on it. Open a pattern, position your pieces, get everything ready before any hardware is
involved.

When you do connect a projector, your existing calibration is rescaled onto the new surface
instead of being thrown away.


WORKS WITH THE PATTERNS YOU ALREADY OWN

• Open PDF patterns from Files, iCloud Drive, or anywhere else on your iPad
• Show only your size and hide the others, on patterns with size layers
• The app tells you when a pattern's layers cannot be switched, instead of silently doing
nothing
• Lay out tiled pattern pieces: reading order, blank pages, overlap snapping, align and
distribute
• Mirror pieces along a fold line
• Adjust line weight and invert the display so the pattern reads against busy fabric
• [CONFIRM] Import SVG patterns as well as PDF
• [CONFIRM] Export a print-ready file for home or copy-shop printing
• [CONFIRM] Mark up the projection with your own annotations
• [CONFIRM] Navigate large patterns with an overview map


BUILT FOR THE WAY YOU ACTUALLY WORK

The control panel adapts to the space it has, not to the device name. An iPad in Slide Over
gets the compact layout. An iPhone in landscape gets the full one. Works on iPhone and iPad,
iOS 17 and later.

No account. No cloud. No proprietary projector to buy. Your patterns stay on your device.

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