DX  » Community » Reviews » Red Laser Module - Focused Cross (3.5V~4.5V 16mm 5mW)
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  • Overall Rating: 5
  • Price: 5
  • Quality: 5
  • Ease Of Use: 5
  • Usefulness: 5
Excellent value for money – Red Laser Module - Focused Cross (3.5V~4.5V 16mm 5mW) Reviews

posted by picbits on 09/06/2011 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

Pros:
Nicely made laser
Can re-use the lens for other lasers / purposes
Nice metal housing
Can get a reasonably fine focussed line
Price !!!
Cons:
The inner focus mechanism isn't particulaly tight. If you over tighten the outer ring, the inner can loosen up. Nothing a bit of PTFE tape won't solve if this happens.
Can be a bit bright for close up work
Other:
If you do mess up the focus, take off the outer lens by unscrewing the metal ring, take out the inner plastic lens holder and wrap with a couple of turns of PTFE. Apply power and focus the inner lens until you get a nice sharp dot a the distance you're intending to use the laser at. Then carefully screw the outer lens (which gives you the cross) back on and everything is fine and dandy again :)
Bottomline:
Don't dither - its a good laser so buy one !

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