3D printed - Chinese laser cutter - XY locating laser clamps

thingiverse

OpenSCAD 2014.03 or later is required for this project! The generic "eBay" laser engravers/cutters typically have similar designs; however, mine had issues with air-assist and laser dot alignment on a swiveling mount. To resolve these problems, I replaced the single dot-focused laser with two line focused lasers and designed a clamp to align them with the cutting lens/head. By creating a cross-hair with the visible lasers and properly aligning the beams, you'll have an X/Y cursor aligned with the cutting head. This design is compatible with standard 12mm laser enclosures and can be adjusted for various generic laser designs. Use OpenSCAD to export the STL file for your preferred toolchain, print it on a 3D printer (e.g., PLA on a RepRapPro), and replace the existing laser alignment while utilizing the power feed for the replacement laser diodes. Ensure the bolt holes in the model fit M3 bolts with a captive holder for the nut to clamp the laser diodes, and secure the clamp assembly to the moving laser head using short M3 screws. Wire the two diodes in parallel with correct polarity to the original supply feed for the laser pointer, completing the process.