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well, it's my first instructable, and I'll show how to make a red laser pointer (5mW)
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Signing UpStep 1Materials
you will need:
- 5mW laser module - 14$
- batteries of phone 4.5V - 4.90$
- switches x2 - 0.60$
- pvc tube (i used 3cm diameter)
- wire
- adhesive tape
- hot glue
- 5mW laser module - 14$
- batteries of phone 4.5V - 4.90$
- switches x2 - 0.60$
- pvc tube (i used 3cm diameter)
- wire
- adhesive tape
- hot glue
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BTW does the laser have a driverboard? In one pic it says the batteries voltage is 3.6V but in the text you say that it is 4.5V. Often lithium batteries charge up to ~4.5V but their actual working voltage is ~3.6V so if you don't have a driverboard you will have to charge the battery more often and it won't discharge completely.