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  1. AUTO XX

    Mosfet Info Needed for Submarine Project

    Hey guys, it's been a looong time since I posted anything but I have run into a snag I can't seem to figure out. I'm making a propulsion system which basically amounts to strapping a couple of trolling motors to my legs and hoping it works... Each motor is 30lb thrust max, ~30A draw but I want...
  2. AUTO XX

    Laser story with a happy ending

    A few weeks ago I was helping my girlfriend move into the house I just built for her. As always, I had my (1.49A so probably around 1.3W) 445 in my pocket. Somewhere along the line I must have picked up something heavy enough to trigger the switch (I used a host that generally mitigates this...
  3. AUTO XX

    Clarification on 445 requirements please

    I'm using a dc to dc constant voltage/constant current driver http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=120621007328&ssPageName=STRK:MEWNX:IT for a 445 labby I'd like to finish ASAP Been searching for a couple hours but all I can find on the necessary voltage is this...
  4. AUTO XX

    Inductor help please

    I bought a few inductors on fleabay a while back, they are rated @ 1A apiece but the price was right so I got them anyway. I need 3-6A and the guy that I bought them from was either trolling or there was something lost in translation. My question was is there any way to wire these inductors...
  5. AUTO XX

    Holy crap, its a whiteout!

    Drove over to the gf's place today, even in 4wd I was having trouble keeping the truck on the laneway. Drove into town busting through 3-4 foot drifts with about 20' of visibility. Here is a pic, visibility has improved a lot but it's not nice out there. 1.6W 445nm on the left, ~600mW 405nm...
  6. AUTO XX

    High Power Heatsink Combo Kit Now for Sale (image heavy)

    Hey guys, I enjoyed the long runtimes of a recent 445 build so much that I just had to share it. This heatsink will work for any diode that fits in an aixiz module but it handles a high power build very well. The price is $50 USD Included is: the main heatsink a driver heatsink a blank PCB...
  7. AUTO XX

    Effect of temperature on DPSS Laser (image heavy)

    It was cold out today so I brought a cheapie green over to my girlfriends place to show her something we were talking about. DPSS: Diode Pumped Solid State lasers use an infrared diode to pump a crystal that "halves" the wavelength of the light from 1064nm to 532nm and doubles the frequency...
  8. AUTO XX

    Post any deals you find ;)

    I bought 3 "5mW" green pens at $5.19 apiece with free shipping. They were going to be gifts but one of the three happened to be overspec. The beam on the third one is easily visible in a lit room and gets even brighter after being on for ~45 seconds. The price is $5.99 each now but it is still...
  9. AUTO XX

    Literally continuous duty driver help please

    Hey guys, I have an idea for a signaling device that would need to be powered 24/7 at at least 500mA. 1.5A might be on the table later on for developing other devices but this is more about longevity. This driver would be running a laser, either green dpss or 445. I am leaning slightly toward...
  10. AUTO XX

    1.497A 445 in a custom heatsink (image heavy)

    Hey guys, this is my 3rd 445 build and because I don't have a mind of my own I am following the trend of making a "1.5A 445 build" I wanted a better heatsink for long runtimes though because this one will be used continuously for several minutes at a time at least. Spun a few thou off of the...
  11. AUTO XX

    Driver heatsinking

    There are a few options, I have used arctic alumina, arctic silver and ye olde deal extreme "greaselike silicone adhesive" (wouldn't recommend it). The problem is, these methods are permanent without the use of some pretty brutal solvents. Well, apart from one *cough-DX-cough* If you are like me...
  12. AUTO XX

    back reflection help please

    I am building an 808nm >1W laser into a custom heatsink but would like to keep it under the (coated) glass to make it easier to clean as well as waterproof it. How much will back reflections kill this kind of diode? I'd like to try it with a casio 445 as well if there are no issues. I posted a...
  13. AUTO XX

    My 1st DIY 1.6W 445 handheld (Image heavy)

    I got a lathe 4 days ago and have been learning how to use it. I figured "what better way then to make a heatsink?" ^_^ Took a few attempts to get something I liked but this is what I came up with: The first attempt was supposed to go under the glass of the flashlight host and fit exactly like a...
  14. AUTO XX

    16340 ---> 18650 adapter

    I know the 18650s have a massive capacity compared to the 16340s but I wanted to be able to charge them both with the same (cheap) charger. I just got a lathe 2 days ago so this was a nice bit of practice ^_^ Pretty simple to make, its a little thin around the battery but actually quite tough...
  15. AUTO XX

    Ever buy from Alibaba?

    Hey guys, I don't mean to sound racist or anything but I have heard (this is a direct quote) "Those bastards from the middle east will sell your contact information to the mass emailers" Sounds pretty messed up if it's true but a big business like that likely wouldn't sell your email...
  16. AUTO XX

    Post your favorite "Chinglish"

    As most of you laser enthusiasts that also enjoy the DIY aspect of the hobby, I have been searching for cheap yet decent hosts. China seems to be where the action is and of course this leads to the inevitable language barrier ^_^ Just found this ad for a cheap little host and it made me chuckle...
  17. AUTO XX

    A140 under glass?

    What would be the pitfalls of making a >1W 445 build in a waterproof host but have the stock (ar coated) glass left in? I'm guessing reduced output, reflection back into the diode, possibly too much temp differential in the glass itself might even crack it. Any thoughts on this? Tried searching...
  18. AUTO XX

    New MAGIC batteries far surpass any existing!!!

    *BE AWARE, this is a joke, buy this only if you are an idiot and don't read reviews* DealExtreme: $12.61 PEGA "26000mAh" External Rechargeable Battery Pack for PSP Slim/2000/NDS/DS Lite/GBA A battery pack storing 26,000mAh!?! Buy this and power your 1+watt 445 for nearly an hour!!! ....Turns...
  19. AUTO XX

    My batteries are screaming

    I got 9 18650's out of an old laptop batt. 3 were 3.7v, 3 were 2.7v, and 3 were 0v. I tried charging the 3.7's, no problem, tried the 0's (knowing they were pooched) and they just made the lights of the charger flash which was kinda pretty :na: Then I tried the 2.7's..... I guess they didn't...
  20. AUTO XX

    Sexy host, possibly upgradeable?

    Astronomy Titanium Forensic 5mW GREEN Lazer Pointer New - eBay (item 230515279818 end time Aug-25-10 14:23:26 PDT) The guy seems a little too anal about safety for it to be overspec but it also means clean safe fun :na: -Auto




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