Allows the wood to twist and bend in multiple directions, not just one. 3. The Wave / S-Curve Pattern Instead of straight lines, this uses interlocking waves. Best for: High-durability hinges.
Before cutting your final piece, cut a small 2-inch strip of the hinge to see how far it can bend before it cracks.
A living hinge (or flexure) is a series of strategic cuts in a material that allows it to bend without breaking. By removing material in a specific linear or radial pattern, you reduce the torsional stiffness of the wood. This technique allows makers to create: Rounded corners on electronics enclosures. Conforming "wraparound" book covers. Curved lampshades and furniture. Flexible wallets and jewelry. Choosing the Right Wood for Bending laser cut wood bend pattern download
The pattern you choose dictates how tight the radius can be and how much "spring-back" the wood will have. 1. The Standard Parallel Line Hinge
The most common pattern consisting of alternating vertical lines. General enclosures and book spines. Pros: Easy to design; very predictable. 2. The Cross-Hatch / Lattice Pattern This looks like a series of small "plus" signs or diamonds. Best for: Spherical or multi-axis bends. Allows the wood to twist and bend in
The "kerf" is the width of the laser beam. If your lines are too close together, the wood will turn to ash. Aim for a "link" width of at least 1mm–1.5mm for 3mm plywood.
If you're ready to start cutting, you don't need to design these from scratch. Here are the best places to find tested patterns: Best for: High-durability hinges
The industry standard. The cross-grain layers provide strength, preventing the hinge from snapping along a single grain line.
