Pattern Tool

stained glass

Input

Drop a PNG here or browse

Units

Finished piece size

Width mm Height mm

Paper pattern

Page Overlap mm Printer margin mm Print scale % Line width mm

Guide plates

Plate W mm Plate H mm Gap mm Clearance corner Clearance W mm Clearance H mm Guide height mm Guide shrink mm Dot radius mm

Detection

Min piece mm² Simplify mm Line tolerance Palette merge

Printer calibration

Print the PDF at 100% / "Actual size"
Print the bar STL at 100% (non-white filament)
Lay the bar in the dashed lane, top-aligned with the box
Photograph the whole page straight-on, upload below

Export

Stained Glass Pattern Tool

Turn a colored pattern PNG into numbered glass pieces, a tiled print-ready pattern PDF, and 3D-printable cutting guides.

Drop your pattern PNG here

or

PNG only · runs entirely in your browser, nothing is uploaded

Glass palette

Pieces

Plates