You all know that when making a laser device, the most difficult part it's focusing without buying a module.
So here it is, a complet guide about how to make a focusable laser module with parts you have lying around.
Everybody havs heared about aixiz module, but they're expensive, at least if you know you can do something similar for free.
This module is not recomended for laser diodes over 300mW, because lens can melt and it's not the best heatsink.
the goals I wanted to achieve are:
-Make it easily focusable.
-Make it with household parts.
-make it nice and durable.
I'm very happy with the final results, the module acts as heatsink and it can focus the laser to a single burning point or a beam.
Step 1: Materials
The parts you will need are:
-A 6v motor case (best from a dead motor).
-The lens from the sled.
-A 5mm (inner diameter) washer.
-Three long bolts for the motor case.
-Three ballpen springs (1cm).
-A laser diode (no more than 300mW).