The old laser module's enclosure was inadequate, and I wanted the new one to be sturdier, as well as having options to run the laser in continuous mode as well as push-button mode.
Step 1: Materials and Equipment
1 green laser module. (This particular module takes 5V to run.)
1 double pole, single throw switch.
1 momentary button.
1 4AA battery pack.
2 40mm PVC end caps.
1 short section of PVC.
1 40x40 piece of polypropylene plastic. (from a cutting board).
3mm metric fasteners. (Small bolts.)
Equipment used were:
Drill press. (I actually used a mini drill-press that takes a hand drill.)
Dremel with cutting disks and sanding wheel attachments.