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ArcticMyst Security by Avery

Chalk Line Laser

Joined
Sep 18, 2010
Messages
1
Points
0
Guys, i am a newbie here, and looking for some help. I am a surveyor, and would like to find a laser powerful enough to act like a chalk line in broad daylight. Ideally, i would set it on the ground, or just above grass on a block, and turn on. It would broadcast a laser across the surface of (grass, asphalt, dirt, etc)

Don't care what color, just bright enough to see in the sunlight.

Can anyone tell me or recommend to me a product. The smaller the better.
 





Joined
Jun 12, 2010
Messages
462
Points
28
green is going to be the most visible.

100mW (likely more) of green shone through a line generating lens would probably work well for daylight viewing on most surfaces. I know WickedLasers sells a Green Spyder III lasers for about $300-$1000 but it does have an easily replaceable lens for which you can buy lens kits (including line generator kits).

However, I would advise looking for another vendor of green lasers rather than WL... thier service is pretty bad and you could end up waiting a month or two for them to deliver your order.

Blue might be an option for you... but it will have to be handmade. And it will probably have to be >500mW to have the conspicuous visibility you describe (blue is less visible than green to the human eye). The good news is you could probably find a builder on this site who could do the job for <$500 or do it yourself for <$200. I think a kryton groove modified to hold 2X protected 18650 batteries would be pretty good and a line-lens could easily be added to the focus ring.
 
Last edited:

Benm

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Joined
Aug 16, 2007
Messages
7,896
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113
The line generating optic is a very simple piece of plastic, it can be added to virtually any laser.

The problem is getting in visible in bright daylight conditions - since you distribute the lasers power over a line instead of a dot, its going to take raw power to do it. A (few) 100mW of green will work on a cloudy day outdoors, but in maximum sunlight, i doubt it would be all that visible, but this also depends greatly on how long you want your line to be.
 




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