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

NOTE: Requires OpenSCAD 2014.03 or later!

The generic "eBay" laser engraver/cutters are all much the same design. Mine, with air-assist and a laser "dot" I found difficult to align the laser pointer (it's on a freely swivelling mount), also, hitting transparent perspex leads to further problems trying to work out exactly where the visible laser is in relation to the cutting laser.

So, I've replaced the single dot-focused laser with two line focused lasers, and this Thingy to clamp them aligned with the cutting lens/head. Align the line on each visible laser to form the cross-hair, get the beams aligned properly and lock the focussing ring with a dab of thread-lock, and there you have it - an X/Y cursor that is aligned to the cutting head!.

This Thingy was designed around a standard 12mm laser enclosure. I picked up a couple of pre-assembled line-focused lasers from OdicForce lasers (UK), there's plenty around on eBay, also.

The design is not parameterised in any way - I figured that it'll fit most of the generic laser designs, and the scad file is simple enough to tweak for any differing design