The Fenix-Store
Results 1 to 24 of 24

Thread: new leadlight 110 mod!!!

  1. #1
    Enlightened Wyvern's Avatar
    Join Date
    Feb 2005
    Location
    UK, East Sussex
    Posts
    67

    Default new leadlight 110 mod!!!

    to everyone who has a 110 here:

    do the "102" resistor mod then short the diode labled A106 on the opposite side of the board, i got about 10mw extra this way

    Enjoy

  2. #2
    Enlightened Wyvern's Avatar
    Join Date
    Feb 2005
    Location
    UK, East Sussex
    Posts
    67

    Default Re: new leadlight 110 mod!!!

    i can now easily burn through black electrical tape within 2-3 seconds, i have no way of measuring the power can anyone estimate?

  3. #3

    Default Re: new leadlight 110 mod!!!

    Just the idea of shorting a diode seems mad to me.

    What does anyone else think ?

    I have some 110's here so I could give it a go but it seems totally against the rules.

    Mind you I will do anything for more power....

    Gold

  4. #4
    Enlightened Wyvern's Avatar
    Join Date
    Feb 2005
    Location
    UK, East Sussex
    Posts
    67

    Default Re: new leadlight 110 mod!!!

    try it and see!! first do the pot mod then short the 102 resistor described on another thread then short the diode

    dont ask me how it works but it does

  5. #5

    Default Re: new leadlight 110 mod!!!

    Hi wyvern, I don't think everyone has a diode marked as a106. Can you give a better description of which component. There are front and back pictures posted in the original 110 mod thread, maybe you could repost those pictures with the component your talking about circled.

    Thanks
    Jack

  6. #6

    Default Re: new leadlight 110 mod!!!


  7. #7

    Default Re: new leadlight 110 mod!!!

    Do you mean component marked C106?

    Jack

  8. #8
    Enlightened Wyvern's Avatar
    Join Date
    Feb 2005
    Location
    UK, East Sussex
    Posts
    67

    Default Re: new leadlight 110 mod!!!

    thats the one, i assumed it was a diode because of the line but because of the size it may well be a cap

  9. #9
    Enlightened
    Join Date
    Feb 2005
    Location
    Austria
    Posts
    76

    Default Re: new leadlight 110 mod!!!

    No diode, it is a cap !

  10. #10

    Default Re: new leadlight 110 mod!!!

    The 110's have two transistors in series controlling the LD's current. By shorting out the capacitor you have removed one saturation voltage drop from the "lower" transistor and permitted a slightly higher base current to flow through the "upper" transistor providing a lower saturation voltage. The reduction in voltage drops permitted a higher LD voltage and a higher LD current.

  11. #11
    Enlightened Bengal's Avatar
    Join Date
    Jan 2005
    Location
    Lancaster Pa. USA
    Posts
    77

    Default Re: new leadlight 110 mod!!!

    chp,
    have you been able to devise a schematic of the 110 driver board?
    if so could you post it?

  12. #12

    Default Re: new leadlight 110 mod!!!

    OK Wyvern I have now tried you MAD idea ?

    It makes more sense now I know its a cap, and you are 100% right, I take my hat off to you, what a good mod. I have a 110 here with 2, mods. I have one resitor shorted, and the photodiode now lives inside the battery compartment! This mod of yours works, my unit now draws 560ma from my bench power supply (is this a 110 record).

    Sorry I was so negitve at the start (it was the diode thing), thanks for a really good mod.

    By the way this mod makes my red LED glow dimmer, does it do that on yours ?

    Gold

  13. #13
    Enlightened
    Join Date
    Jan 2005
    Location
    U.S.
    Posts
    39

    Default Re: new leadlight 110 mod!!!

    Now that we're able to reach currents surpassing 500ma with this new mod is there a resistor we need to change out to keep the extra current from frying the circuit? It would be the equivalent of changing the 2k for the 3.3k on the 105 model, or is this not neccesary for the 110?

  14. #14

    Default Re: new leadlight 110 mod!!!

    I have just order another 110 to mod. My current unit has been the subject so much experientation I want to start from scratch.

    Has anyone else tried this mod, laser modifier ?

    Gold

  15. #15
    Enlightened Wyvern's Avatar
    Join Date
    Feb 2005
    Location
    UK, East Sussex
    Posts
    67

    Default Re: new leadlight 110 mod!!!

    yes my led did glow dimmer (i think it was ready to blow) but i feel an led is a waste of mA so i got rid of that too

    i still have the photodiode in place and seems to make no difference, it seems we were initialy wrong in thinking it was there to limit the beam to 5mW

    i do have a rough schematic i have drawn up, im not sure if i've found all the via's on the board so i will post it soon

  16. #16

    Default Re: new leadlight 110 mod!!!

    I have ordered 2 more to play with, I am going to do this mod from scratch before the others. Expect a post on wednesday.

    Sorry if I was sceptical before.... It was the diode thing..

    Gold

  17. #17

    Default Re: new leadlight 110 mod!!!

    [img]/ubbthreads/images/graemlins/popcorn.gif[/img] got a couple on the way, will give it a go.

  18. #18

    Default Re: new leadlight 110 mod!!!

    I ordered a wicked extreme mx because I couldnt see why to spend more money on leadlights and spend weeks modding them only to overdraw the diode and eventually ruin them, but I got to admit, modding these things is the fun part, Im still waiting on my mx but ill post a review. Oh yeah I bought a big 6 inch light bucket reflecting telescope with 600x magnification!!!!! [img]/ubbthreads/images/graemlins/paypal.gif[/img] So I will find a spot somewhere deep in the country where it is flatland and ill have to find a large hill or somewhere to setup the telescope, and I will have to find a large object in the distance and see how far the mx will go. I know it claims 45 miles but I doubt if I can acurately measure these kind of distances but ill give it a try.

  19. #19
    *Moderator* K-T's Avatar
    Join Date
    Mar 2002
    Location
    Germany
    Posts
    3,469

    Default Re: new leadlight 110 mod!!!

    Deezdrama, just to remind you that discussions about pointing >5mW lasers in the sky without termination points and / or proper license is not tolerated! [img]/ubbthreads/images/graemlins/mad71.gif[/img]

  20. #20
    Moderator
    Kiessling's Avatar
    Join Date
    Nov 2002
    Location
    Germany, Old World
    Posts
    16,140

    Default Re: new leadlight 110 mod!!!

    Dito to K-T, and as this isn't the first time we are telling you this, take this as your last warning before your posting privileges will be removed.
    bernhard

  21. #21
    Flashaholic* Raccoon's Avatar
    Join Date
    Dec 2004
    Location
    New Mexico Tech, Socorro NM
    Posts
    597

    Default Re: new leadlight 110 mod!!!

    There should be some sort of law that permits American People to perform experiments in the desert if the US Gubbament is allowed to.

  22. #22

    Default Re: new leadlight 110 mod!!!

    I have a box of these 110 units, I did this mod on 3 of them and got good results till I fried one and now realize that we are pulling 600ma current draw. How can we get the current draw to 450ma???

  23. #23
    Flashaholic
    Join Date
    Aug 2005
    Location
    Chicago Area
    Posts
    246

    Default Re: new leadlight 110 mod!!!

    My advice is to "de-mod" your pointers back to original condition, before you have a box of useless junk.

    The A106 capacitor mod totally defeats the current limiting to the LD, and is the most ill-conceived "mod" I've ever encountered. With the APC circuit defeated in this way, the LD current is dependant only on the battery's impedance and the pass transistor(s) saturated (full ON state) voltage drop, which ain't much limitation at all. Worse, the current in this condition can spike to very high levels, and the steady-state current is unpredictable - and will vary widely over temperature changes. If you are doing this mod, you might as well eliminate all the drive electronics and simply put a resistor in series with the LD's battery connection, at least the current limit point would be somewhat constant...of course this is a stupid idea, which is my point. Too many people are being taken in by this kind of modification, and are throwing money in the toilet for the sake of an expedient "solution". Bah.

    I have posted a far better mod on this forum - and furthermore have found that with the factory values (shown in my reverse-engineered schematic), the LD current can be adjusted anywhere within the LD safe operating range - and beyond. Leadlight did a fine job with this design and it needs only my mod to allow it to work reliably with two AAA cells (it works great without mods above 3.5V).
    Last edited by Corona; 09-16-2005 at 10:22 AM.

  24. #24

    Default Re: new leadlight 110 mod!!!

    Corona everything you just stated I found to be true, Id love to hear about your mod

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •