Leathercraft CAD v3.5.0

✨ Highlights

• Smart Offset — true parallel offsetting of multi-segment shapes

• Smart Corner Auto-Pricking — perfectly centered stitch holes on every corner

• 3D Pattern & 3D Jig STL export — bridge from CAD to 3D printer

• Mac TrackPad gestures — two-finger pan and pinch-zoom

• G1 / G2 Bezier smoothing for connected curve chains

🚀 New Features & Enhancements

Offset

• Smart Offset — Offset connected chains of shapes (LINE / ARC / BEZIER) inward or outward while preserving smooth junctions between adjacent segments. No more manual fix-ups at corners.

Auto Pricking

• Smart Corner mode — Reliably places a stitch hole exactly at the center of sharp corners and chamfered (rounded) corners, so your stitching always lands where it should.

3D Printing Workflow

• 3D Pattern STL export — Turn your CAD pattern data into a 3D-printable plastic template in one click. Great for replacing chipboard patterns with durable, reusable ones.

• 3D Jig STL export — Generate alignment jigs for stamping, or stitch-hole marking jigs for leather pieces cut with steel rule dies.

Mac Support

• TrackPad gestures — Native two-finger pan and pinch-to-zoom on Mac TrackPad. Working on a Mac is now dramatically smoother and more intuitive.

Bezier Curves

• Connected Bezier smoothing — A new right-click menu entry, Bezier Curves → Smooth Connected Bezier Curves, applies G1 (tangent-continuous) or G2 (curvature-continuous) smoothing across an entire chain of connected Bezier segments in one operation.

Leather Simulator

• Simulator images now update silently in the background when new versions are available, instead of prompting at startup.

Internationalization

• Missing translations are now auto-filled with AI assistance, dramatically improving language coverage.

🐛 Bug Fixes

Leather Simulator

• Fixed an issue where pasting a leather image onto a shape with holes would visually fill in the holes.

Numeric Input

• Fixed a crash-loop where typing non-numeric characters (e.g. ) into a numeric field and confirming would produce an endless error-dialog cascade, making the app impossible to close.

Accuracy

• Fixed a rare issue where the shortest-path calculation used by Auto Pricking and the Ruler tool could produce incorrect routes.

• Improved the precision of circle-related geometry calculations.

Auto Pricking

• Fixed a rare issue where Auto Pitch mode could produce unnaturally large stitch spacing.

Selection

• Fixed a bug where rectangle (range) selection would also select hidden shapes that fell inside the selected area.