re-colaminating

[tone1132]

help! im trying to Recollimate my 125mw viper. the lens is already loose, so how would i know what distance to focus the beam at? how do you get it to infiniti?? thanx alot!!

 

[Amnizu]

Recollimate. Collimation.

 

[tone1132]

thats what i said......lol! thanks. could you help??

 

[Amnizu]

thats what i said......lol! thanks. could you help??

I had to correct your spelling since it bugged me so much.

As for a distance, I would say try to focus it for at least 50 feet or more. If you can get a tiny dot at 50 feet, then you'll have a better divergence than most lasers do to begin with. Plus, there aren't many applications you'll need to use your laser for where you need a really tight dot at 50 feet except for showing off with match lights, balloon pops and so on.

 

[Razako]

Basically you shine the laser at wall that is at least 30 feet away and adjust the laser until you get the smallest possible dot. Although it takes a lot of trial and error it really isn't hard at all.

 

[tone1132]

hmmmm...... ok. thanks again. Does anyone know where to get a glass focusing lens for a aixis modual???

 

[m.carroll]

hmmmm...... ok. thanks again. Does anyone know where to get  a glass focusing lens for a aixis modual???

i think drlava sells them, but i got one from aixiz on ebay for 5$.50 shipped...

http://cgi.ebay.com/Glass-lens-for-...2823875QQihZ002QQcategoryZ53141QQcmdZViewItem

 

[Abray]

one thing that helps when collimating, is to have it on a wall or something pretty far away. and have a friend down looking at the dot telling you whether to keep turning the lens or if the dot is good. That's how I collimated some of my lasers. It works pretty well!

 

[tone1132]

i was wondering..... could i bounce it off a mirror back to my position and then collimate, would the mirror make the dot look bigger or smaller than it actually is? thanks again!

 

[Amnizu]

In my experience the mirror will enlarge the dot artificially and make it seem larger than it is.

 

[pwnstar]

i put a patch of black electical tape on a wall 30 feet away and aim the laser at it
and run back and forth measuring/adjusting

 

[tone1132]

how big should the dot be at 30 ft.??

 

[Razako]

how big should the dot be at 30 ft.??

As small as possible. Go for the best divergence that you can get.

 

[tone1132]

i have a dot the size of a dime at about 25ft. is that good? this is pretty tricky on my part, its relly hard to tell when turning the lense does anything.

 

[tone1132]

Any feedback?........Anyone?? .................... :'(

 

[Razako]

Any feedback?........Anyone?? .................... :'(

Dime at 25 feets sounds good to me. That actually beats a couple of my lasers.