9mm line laser holder
thingiverse
Simple holder with 3mm screw holes for attaching a 9mm line laser securely. I'm using one from eBay: 5 Pcs 650nm 5mW 3V Red Laser Line Module Head Φ9 http://r.ebay.com/C4a2x0 but there are many other options available. This design includes a downloadable SketchUp file for easy modification.
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