Laser Alignment Guide From Cheap Laser Pointer : 3 Steps ...
Cheap Laser pointer. 2. glass tubing. 3. acrylic sheet 2mm thick (i used up about 8" x 6" sheet.) Includes the housing of the pointer. 4. access to a laser cutter, but this is optional. 5. instant glue. 6. batteries for the laser pointer (usually comes with the pointer) I used a plug in DC power supply again this is optional.