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Back of Aixiz Lens

chido

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Hey guys, I've read some posts around the forum saying to englare the hole on the back of the aixiz lens, but why exactly is this necesary? Will the plastic melt if you leave the laser on for some time? Will the beam become too wide once you englare the hole? Sorry if this has already been answered, I looked around a lot but I couldn't find anything. Thanks for the help. ;D
 





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it's just to get more laser from your laser. it pops off you shouldnt have to grind it or anything
 
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That little hole "prettys up the beam"! But you loose some power because of it. I open mine up to get it all.

Mike
 

chido

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Thanks for the replies guys, so the plastic won't melt if I leave the hole as it is, right, cuz I did read something (not sure where it was) about somebody who got melted plastic stuck to the lens because he didn't englare the hole.
 
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Depending what wattage and duty-cycle you're going for yes, it could melt enough to deform, although actually sagging onto the laser window seems a bit much.

I've never gotten mine to pop off as some have said, but I've had good luck CAREFULLY enlarging the hole with an xacto knife. I scratched the 1st lens I tried this on though so cut at an almost horizontal angle if you use this approach.
Also if you do, use some dust-off on it afterwards to make sure there aren't any little plastic-shavings hanging around.

The beam *does* look nicer though with the small hole if that matters to you.
 

chido

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Ok, thanks for the reply, I'll probably drive it at 250mA max, and see how it works out, so I guess the beam looks like this with the hole englared:
 

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chido

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member02 said:
it's just to get more laser from your laser. it pops off you shouldnt have to grind it or anything
How do you get it to pop off? Do you just pull it out? :-? I thought the black plastic where the lens is was just one single piece.
 

Gazoo

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chido said:
[quote author=member02 link=1201207474/0#1 date=1201210256]it's just to get more laser from your laser. it pops off you shouldnt have to grind it or anything
How do you get it to pop off? Do you just pull it out? :-? I thought the black plastic where the lens is was just one single piece.[/quote]

I had a bear of a time getting the one to pop off on my aixiz. The DX module was much easier.
 

chido

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Ok, but how do you get it to pop off? Do you stick something in the hole and then pull it until the back part comes off? Also, can you put it back once you pop it off, or would you have to glue it? :-? Sorry for all the questions. ;D
 

tehk

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This is how I opened up mine. Not popping but cutting.

Holding the lens housing lightly with locking pliers(just to have something to cut towards other than my thumb).

Use a straight edge razor to cut the plastic horizontally as shallow as possible in the direction of the pliers.

Turn and repeat around the edge to make 4 wedges.

Then just pry up the wedges with very small flat screwdriver, such as glasses repair screwdriver.
The plastic is pretty stiff so it just cracks off nice and clean around the edge.

Takes about 1 minute :D
 

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tehk said:
This is how I opened up mine. Not popping but cutting.

Holding the lens housing lightly with locking pliers(just to have something to cut towards other than my thumb).

Use a straight edge razor to cut the plastic horizontally as shallow as possible in the direction of the pliers.

Turn and repeat around the edge to make 4 wedges.

Then just pry up the wedges with very small flat screwdriver, such as glasses repair screwdriver.
The plastic is pretty stiff so it just cracks off nice and clean around the edge.

Takes about 1 minute :D

I just scraped it all off. But this might be much better!

ust be careful of what you use to clamp it in place. You could screw up the threads by clamping it with too much force.
 
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chido said:
Hey guys, I've read some posts around the forum saying to englare the hole on the back of the aixiz lens, but why exactly is this necesary? Will the plastic melt if you leave the laser on for some time? Will the beam become too wide once you englare the hole? Sorry if this has already been answered, I looked around a lot but I couldn't find anything. Thanks for the help. ;D


yes it wil melt the plastic


but why not use the glass aixiz lens the quality is a lot beter and it increases the output power
my 375 mw red also used the glass lens
 

chido

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You guys, thanks for the help but I solved this problem a long time ago. ;D
laserfreak, what's the output of your laser with a normal acrylic lens, I think jayrob said he tested the aixiz glass lens and he only got 1 extra mW out of it, compared to the 50mW from the meredith glass.
 
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chido said:
You guys, thanks for the help but I solved this problem a long time ago. ;D
laserfreak, what's the output of your laser with a normal acrylic lens, I think jayrob said he tested the aixiz glass lens and he only got 1 extra mW out of it, compared to the 50mW from the meredith glass.


i got 43 mw extra compared with the  plastic one

output before was 332 mw with plastic
output with glass 375 mw
 

tehk

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Phazonx said:
I just scraped it all off.  But this might be much better!

ust be careful of what you use to clamp it in place.  You could screw up the threads by clamping it with too much force.

Yeah I clamped it very lightly just to hold it steady enough to cut towards the pliars instead of cutting towards my thumb.
 

chido

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laserfreak3d said:
i got 43 mw extra compared with the  plastic one

output before was 332 mw with plastic
output with glass  375 mw

Holly $#it OVER 300mW, and close to 400mW with the glass :eek: it's a homemade laser right? what laser power meter are you using? WHAT diode are you using????? That's a lot of power dude, unless you have a freak diode like Gazoo.
 




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