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FrozenGate by Avery

im using LG 20x DVD burner diode, please help!

about my open can diode i ran it in 415mA but i dont how much output it gives, for now i cant afford the laser power meter, cuz my piggy bank breaks apart :-/after i bought all the tools and things may help to make this laser projects, and thanks for the advice on the goggles, dont worry i use sun shade into it. ;D
 





Post a vid of the farthest distance you're able to light a match with it. You might beat jayrob's 20 feet. ;D
 
ok, i hope i can do it with only heatsink without a TEC, its very hard to focus the beam, im only using acrylic lens, what should i do with this, do i need to use goggles to get the right focus of my laser? it was so bright its hard to see of the focus was fine... any suggestion chido?
 
chido said:
Acrylic lens is the best for burning since you can focus the beam down to a little dot. With glass you get a higher output, but it sucks at burning.
Get some goggles, check the links I posted on the last page: ;)
http://www.laserpointerforums.com/forums/YaBB.pl?num=1201137393/150#161
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I need to jump in with a slight correction...a glass lens does not suck at burning... ;D There does not seem to be a huge difference to me using a glass lens close up, however for distance I believe the acrylic lens is a better burner but not by much.
 
Ok, sorry I guess I need to do more research before giving advice, I saw a post from jayrob and he said the glass lens couldn't focus down to a small dot, and therefore the acrylic was a better burner. I thought that was correct since he's been messing around with open cans and both lenses. :-[
 
chido said:
Ok, sorry I guess I need to do more research before giving advice, I saw a post from jayrob and he said the glass lens couldn't focus down to a small dot, and therefore the acrylic was a better burner. I thought that was correct since he's been messing around with open cans and both lenses. :-[
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And so have I..I have the same modules and lenses as he does..but I don't think he would ever say the glass lens sucks at burning...lol. Much of this are subjective opinions, and even a tiny difference between the same lenses could have an effect. Jay thinks his aixiz acrylic lens is a better burner than his meredith acrylic lens, and I think differently...I believe my meredith acrlic lens is better.
 
adgmeijin, are you putting into your IR in excess of 200mA? im crossing my prongs it lives long enough!
 
I am working on a MXDL with an open can. I tested it and it is putting out 287.2 mw's.. ;D This is using a glass lens. I am using a 3 ohm resistor with the 317. Gotta love those open cans.. ;D

Oh, and I will not say what I have crossed hoping it lasts a long time... ;D
 
And so have I..I have the same modules and lenses as he does..but I don't think he would ever say the glass lens sucks at burning...lol. Much of this are subjective opinions, and even a tiny difference between the same lenses could have an effect.  Jay thinks his aixiz acrylic lens is a better burner than his meredith acrylic lens, and I think differently...I believe my meredith acrlic lens is better.
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Just to add another 2 cents...I have two different Meredith acrylic lenses, and the difference between them is noticeable. One is definitely not as good of a burner as the AixiZ acrylic, but the other is just as good. Possibly more testing might reveal that Gazoo is right! I have come to know, that he usually is! What he is saying about the glass lenses is correct. I haven't experienced any noticeable differences in the AixiZ acrylic lenses...
Jay
 
Gazoo said:
I am working on a MXDL with an open can. I tested it and it is putting out 287.2 mw's.. ;D This is using a glass lens. I am using a 3 ohm resistor with the 317. Gotta love those open cans.. ;D

Oh, and I will not say what I have crossed hoping it lasts a long time... ;D
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Good news with that MXDL Gazoo! I'm pretty sure your open can diode is very happy in it's new home. If you haven't already read/obtained some, these little silicone tailcaps make great lens caps to protect from dust:
http://www.dealextreme.com/details.dx/sku.5742
Just cut the little center nub off (inside). They fit both AixiZ modules (if you have the metal focus grip on the lens), as well as Meredith...
Jay
 

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Excellent tip on a lens cover Jay. I will be ordering a couple more MXDL's and will definitely get a pack of them. Thanks.
 
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