Leadlight 105/110 Modification Stages1,2

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Damn 🙁 I was about to say you should be ok aiming it at the carpet, etc.. but yeah it sounds like the diode has been over driven, unless somehow you damaged the POT(but unlikely). I know what it's like to have to try and get that extra little kick out of something...but sometimes it's better to stop while your ahead :/

Anyway give it a try again, but this time use a multimeter so you don't over drive the diode.


cheers,
 
You live and learn I guess. I'm just glad I didn't learn on a blue one :O

Now, when I get the other one (already ordered it 😀 Although this one was in silver, oh well) is this about right:
Remove end cap
Place one lead of the multi to the positive contact of the battery sticking out
Place the other lead between battery and case (touching the metal threads).
Hold down button, turn slowly on the pot and watch the multi.
Keep it at or under 300mA

I'd like to avoid pulling it apart as I wasn't successful with the first one. There is NO gap at all to get into on mine.

Also, do you guys think anyone would be willing to pay a few bucks for the broken one? 😛
 
Why don't you order a new 808nm pump diode at www.roithner-laser.com ? I replaced a broken diode with the S808200MG, 808 nm, 200 mW, mm, 50 um, 5.6 mm (€ 21,00 excl. VAT & shipping). Pointer works 100% okay again ! 🙂
 
Don't feel too bad, Iv'e gone through 3 diodes now and just got my hands on a 1.2 watt 808nm diode. Hopefully I'll get this to work without too much of a headace and no more dents in my wallet!
 
Re: How to Modify 5mw Leadlight Green Laser upto 45mw+

Alright, got my new laser from Vital today 🙂 Tried it once more, this time keeping a close eye on the amps. It started out at 160mA and I stopped tweaking it at 290mA to keep it nice and safe. It is no were near the output of my old unit, no comparison really. And it seems to start out bright, and quickly (less than half a second) dims back down a bit, the current is a stable 290mA through this though. It doesn't have an LED indicating when it is on and Vital has informed me that they only ship 105's so it shouldn't be any protection kicking in. This is starting to get annoying hehe.

I guess I'm gonna have to get in contact with Mr. Beland and get a tried and true performer. Problem is that I live in Sweden so the call itself would probably be worth more than the pointer 😀
 
Re: How to Modify 5mw Leadlight Green Laser upto 45mw+

Robban said:
Alright, got my new laser from Vital today 🙂 Tried it once more, this time keeping a close eye on the amps. It started out at 160mA and I stopped tweaking it at 290mA to keep it nice and safe. It is no were near the output of my old unit, no comparison really. And it seems to start out bright, and quickly (less than half a second) dims back down a bit, the current is a stable 290mA through this though. It doesn't have an LED indicating when it is on and Vital has informed me that they only ship 105's so it shouldn't be any protection kicking in. This is starting to get annoying hehe.

I guess I'm gonna have to get in contact with Mr. Beland and get a tried and true performer. Problem is that I live in Sweden so the call itself would probably be worth more than the pointer 😀
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Send me an email with your phone number and a good time to call for both of us. I'm in the Pacific Time Zone and I'm at work at 7AM. We get really cheap rates for overseas calls here.
[email protected]
 
FYI if anyone made it to my reply here, congratulations. You might be the kind of person who reeeeaally wants to do their homework before attempting this mod. Well, it worked for me. The pot mod, that is. Haven't tried the diode mod (I'm still at work..)

For me, turning the pot was a little stiff- it took a little concentration to feel it turning. Also, the sticky used to hold th ebutton down to the switch remained on the plastic, so I didn't want to touch the tape to turn the beam on while tuning the pot. So I would turn a bit, then take the screwdriver out and tap it on with that to test the beam and repeat if necessary. It got scary when it wouldn't turn on, but backing it off a bit it came back on and was very bright.

I just want to warn anyone out there that this really does make a laser pretty bright- I'm considering turning it back down. My eyes see spots, and I've only looked at the reflected dot. Seems to have gone away at least a little in the past 20 minutes. Can't wait to try it tonight, tho......
 
Yeah it can get very bright! even if you got it up to 15mW or more it's noticably much brighter then 5mW. Looking at the dot on a non reflective surface might not cuase you eye damage, but it can give you a headache or temporary flash blindness..like that of a camera flash. If you find that somehow it increased to around 30mW you might want to get goggles, at this range it is starting to get dangerous to the eyes. Can't hurt to be too safe anyway/
 
i did this mod last night on my 105. this is brilliant!
i actually did stage II first (after turning the pot so it dims the laser) so it would be easier to see the difference in brightness.

when i got to stage I, i only turned the pot about half turn. after the half turn, i can keep going another half turn, but doesn't go any brighter. mind you, at this point, it's about 3-4 times brighter than original. Should i keep turning, or should i be content with this amount of power now?

i don't wanna risk breaking it, but you know how tempting it is to fine tune these to get the most of of them. i'm sure many a laser have been destroyed in mans quest for more power... which usually also drives us to stage II after doing stage I of this mod, doesn't it? ;-)
 
If you're not seeing any real increase in brightness I see no reason to risk frying it, like I did with mine. Had I known what I know today I would've just contacted Mr. Beland from the start and saved myself a hundred bucks... (first one burned out and the second didn't respond very well to the mod) oh well, you live and learn.
 
ok, so i re-did the pot adjustment again, trying to turn it back to 5mw again.
i was turning the pot in half turns clockwise , but it remained just as bright each time i tested it.

so i kept the laser on while i turned the pot, and realised what was going on. There is no end to the pot. it just keeps going round in circles changing the power in a loop (i think someone metioned something about this in a previous post). so now, i have it set right on the edge of absolute minimum, so if it turn it slightly clockwise, it goes to full power. just gotta keep my little adjusting tool with me to switch from high to low power.

And i've kept the button off coz i feel it's a little safer, i find the button a little too easy to push accidently. although it's gonna start collecting dust thru the hole.

this is so cool! gotta get another one!
 
Well, my brother gave me one for X-Mass. Within 2 hours, I stumbled upon this mod and completed the Stage 1. It is definitely brighter!
 
Ok, I've had my leadlight for a few months now, and decided to do this mod. However, when I tried unscrewing the POT, a small ring came off.:scowl: It still works, but now I cant complete the mod. I then decided to take the laser out of the casing so it would be easier to do..(if at all possible)..When I tried to take the laser out of the casing, I could only get the brass cap and the brass part that contains the lens. I cannot get the rest of the laser out. Could there be glue or something holding the rest up inside the casing? I'm thoroughly puzzled.:thinking:
 
no, there's no glue holding it down.
my one was so loose, inserting the batteries in it pushed it out.

are you able to screw the endcap into the end? if so, you will be screwing it onto the body, and then you can just pull the whole module out.
otherwise, you might need to get something to push it out from the other end, making sure you avoid damaging the PCB.
 
Rich_UK said:
Hi all, first post from laser newbie 🙂 I just did the pot mod on my green leadlight (from vital*spirit), after pulling the button off I discovered the hole in the plastic cover was already there, I thought damn it's already been modded so I wont be able to boost it, wrong! using a jewelers screwdriver (covered in black tape) I carefully gave the pot screw a little turn (with the button pressed and watching the dot on a white wall), and was amazed with the instant result :wow: so I carried on turning until it went off, and then back a little, my laser now works way better than before, but just one thing....... for a brief second it's very bright, but then it suddenly dims a little, don't get me wrong I'm still very happy, and it's still loads brighter than before, but it would be great if it would stay at the intital power, according to my battery tester the batteries are still good, but at the moment it's still running on the standard ones that came with it, would rechargable NiMH batteries help?

P.S. a big thank you to you LaserMod for putting in the effort to make this guide for us newbies, it's much appreciated :twothumbs
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I am having this same problem. It is initially very bright, then it dims down quite abit. And I think it gets bright again, its hard to tell if its reaching back to its intitial brightness. Is this normal? and would the rechargeables help? or is it the crystals reacting to a sudden change?

Thanks in advace!


Chris
 
Although I dont have a Leadlight ( some china brand 2 years old ) it did have a pot under the switch. The pot was to the left of the switch, instead of to the front as with the leadlights.

Results.... Well its at least 5x brighter. It will burn right through black trash bags, even from a distance. Folded it back over itself like 6 times and the beam ate through it in a few seconds.
Painted a black dot on a plastic cup, and it was smoking almost instantly at 3-4' away.....
Now I have to get a green LED so I can have some idea of the power level...
 
erkme73 said:
Now, when I look into the front of the assembled laser, I see a very, very dim red dot. When adjusting the pot to every possible position, I'm able to spark an ever-so-faint green dot. The pot still works, but the range is from off, to red dot (internally), to extremely faint green light.
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This sounds like those stories you hear about people checking on "dud" firecrackers, or looking down a gun barrel for some goodies. :huh::poof:
 
I was preforming stage 2, and the pad for the two leads that are soldered together popped off. 🙁 I had my iron set at 550 degrees and it seemed like the second that I touched the pad it popped right off. :awman: I had the laser working so nice with just the pot mod, but i had to keep tinkering.... :mecry:
 
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i just bought a green laser from geeks (it looks like the 110 model?), i have never modified anything before and want to but am wondering if anyone know if this is the same model that luckyduck was/is selling for about $47 shipped and if this can be modified (thinking of trying the stage 1 but am alittle nervous and want to be sure if it can/should be modified, thinking it's the same one as luckyduck with that apc maybe?) any help would be appreciated, thanks......

it has a light right under the button that lights up when you turn the laser on to let you know it's on i guess? like you won't see the laser? lol anyway, here is the link to the pics on geeks.........

http://www.geeks.com/details.asp?invtid=GRN-LASER-POINTER
 
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