PatternGrade Sewing

PatternGrade Sewing is a local drafting workspace for independent pattern makers and sewing students. Enter an ordered outline, define how its named points move per size step, and carry checked geometry into editable files or paper tiles. DRAFT AND COMPARE Create projects and pieces, edit or reorder named X/Y points, and compare negative and positive size steps together. Hide sizes for inspection, select a point, pan, zoom or fit the whole outline. On wide tablets the point list sits beside the drawing. The editable tunic study is optional; ordinary launch starts empty. EXPLICIT GRADING RULES One shared X/Y movement vector applies to each exact point name across pieces. Record size names, steps and reference measurements. Changing centimetres and millimetres converts points, movement vectors and reference measurements together. REAL OUTPUT FILES Export nested SVG for all pieces and sizes, quoted grade-rule CSV and all graded point coordinates. Choose one piece and size for actual-size A4 or Letter PDF tiles, with a 100 mm calibration line, assembly map and 5 mm overlap. Preview the native PDF, then save individual files or the ZIP package with Android system file services. KEEP YOUR WORK EDITABLE Export project or library JSON and restore independent copies, including compatible editable JSON arrays from iOS. Restoring does not replace existing projects. Saved output packages are frozen revisions that remain independent of later edits. Malformed imports leave the existing library in place. CHECK BEFORE PRINTING Geometry checks flag crossing or degenerate outlines, missing shared vectors, duplicate names or size steps and an invalid step-zero base. Print at 100% / Actual size, disable Fit to page and measure the 100 mm line before cutting. IMPORTANT SCOPE Outlines use straight segments. Curve hints, notches, cut quantity, mirroring and seam allowances are records only: the app does not generate curves, notch marks, mirrored copies or seam offsets. Body reference measurements do not reshape the outline. Verify garment fit, export compatibility and printer scale yourself. LOCAL BY DESIGN No account, ads, subscription, in-app purchases, analytics or Internet permission. You explicitly choose imports, external saves and sharing. Automatic Android backup is disabled; keep editable JSON backups outside the app. Delete projects, saved outputs or all local app data in the app. Copies saved outside remain with their provider. LIMITS Up to 500 projects, 100 pieces per project, 300 points per piece, 1,000 shared vectors and 30 sizes. Geometry export supports 15,000 graded points, a 3 m span and up to 100 PDF tiles. Library imports are limited to 30 MB and 100,000 outline points. Save external copies before clearing older outputs: up to 24 saved packages / 512 MB. Android and iOS store purchases are separate.

First Android release. • Edit named outline points, shared grade vectors and size steps. • Compare nested sizes, pan, zoom and switch cm/mm. • Export SVG, coordinate CSV and calibrated A4/Letter PDF tiles. • Save editable JSON backups and restore independent copies locally.