Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Search results

  1. dark racer

    weird effect when changing current

    no havent made a lens setup yet. got a 5mw module that's adjustable in the mail today. currently contemplating using that setup for focussing instead of making my own colemating lens with the lenses from a dvd drive and a 3d printer.
  2. dark racer

    weird effect when changing current

    what do you mean pwming the diode itself and not the input to the driver? the whole point of the driver was to protect the laser from the pwm as far as i know. those are the results i get from a circuit simulator (because my multimeter is broken) results from me specifying probe points when...
  3. dark racer

    weird effect when changing current

    ok so i made the circuit in here https://www.circuitlab.com/editor/# (i am not premium so i can't save them and share them.) but the driver is working as intended. i just did not know it would drop from 12v on the outputs without a load. to 3.6v on the output with a load. without the...
  4. dark racer

    weird effect when changing current

    it is heatsinked. the heatsink attached to it is an old graphics chip heatsink. it's atleast 2 or 3 times as big as a regular heatsink designed for an lm317. that's all fine. i just need this thing to last atleast a day or 2. just for shits and giggles of having something i built myself...
  5. dark racer

    weird effect when changing current

    the lm317 in this setup is a constant current circuit. not a constant voltage circuit. or atleast it's supposed to be. i added the capacitors later to get rid of spikes of any kind. and i have not measured the voltage on there. but this diode is being driven by 12v. (i assume the...
  6. dark racer

    weird effect when changing current

    the exact schematic is in the OP (the diode is representing the laser)
  7. dark racer

    weird effect when changing current

    well initially it's just an on off system. burn amount could be done with movement speed. but apparantly. my homemade driver allows me to digitally adjust the laser brightness. i am powering the driver with a 12v fan output on a 3d printer board. 2 wires with a pwm signal. (0-255) if i turn...
  8. dark racer

    DIY aixiz module

    yeah don't worry. i know they are reputable now. so it doesn't matter anymore. i only knew sanwu and o-like before today. (and my first laser came from warnlasers back in 2013)
  9. dark racer

    DIY aixiz module

    yeah like i said. i'm learning. and thanks for the tip. i'll keep that in mind. i'll deffinatly buy a dtr for when i move up to a 1.8 or 2w diode
  10. dark racer

    DIY aixiz module

    -well i'm sorry about the double posting. it's something i am not aware off. i don't go on forums alot. but i guess by now that is pretty obvious. i'll learn though. -i had a question in 2013 and made an account.. i got or found the help i needed. and that's that. it's only now. this...
  11. dark racer

    DIY aixiz module

    it's not that it wasn't pretty. but i don't know anything in this world. no person. no company. so if someone gives me a link that's not ebay or amazon or something. i am immediatly on guard. if it then at first glance looks like the standard scam websites. you guys know what i am...
  12. dark racer

    weird effect when changing current

    hey guys. quik question here. i am building a laser engraver and it's basicly my first time playing around with home made lasers. and i have a question tldr. i made my own laser driver. and when i adjust the current i see a weird effect and i don't know what it means. also i think i may...
  13. dark racer

    DIY aixiz module

    i do know what i am looking for now. and i have given up on local suppliers. i guess there are non. so either alieexpress. amazon or ebay. and then a (do i even need glass? for less then 500mw) focussable lens, housing for a 5.6mm diode. i am currently just searching for that. and i am...
  14. dark racer

    DIY aixiz module

    to clarify why 15 dollars is such a big deal in this case. (because 15 dollars isn't much i agree.) but the whole machine that i am building atm has not cost me more then 10 bucks.) so 15 dollars for just a laser housing is a pretty bad investment i had old dvd drives. i already have...
  15. dark racer

    DIY aixiz module

    basicly if i have to spend 15 bucks on a copper laser housing. i'd better have a much stronger diode to put in there then a simple 150-300mw red laser diode from a dvd burner. (lets say average 200mw)
  16. dark racer

    DIY aixiz module

    yeah no thanks. everything about that website smells like a scam. the cheap layout. the change in background from the homepage to one of the product pages. (makes it seem like a completely new site) but most of all. if you ad something to cart you immediatly end up on paypal. with...
  17. dark racer

    DIY aixiz module

    this is what i am making
  18. dark racer

    DIY aixiz module

    i guess here in the netherlands i am just out of luck. i can choose from a 5mw laser. like this https://www.kiwi-electronics.nl/laser-diode-5mw-650nm-red?search=laser&description=true&sort=p.price&order=ASC from inside the netherlands with 1 day shipping. i cannot find any lose laser...
  19. dark racer

    DIY aixiz module

    something like an aixiz module. that i can press one of these into like this https://www.amazon.com/AixiZ-30mm-laser-module-blanks/dp/B004LZHA0I that i can press the diode in for heatsinking. and that i can screw a lens into. i did just find this though...
  20. dark racer

    DIY aixiz module

    and if i am going to buy that 500mw red laser i could also just use my 1w blue laser module. (not enoegh heatsink though) it's from the O-like laser pointer though. the waterproof one of 50 bucks. so i don't want to sacrifice that. they gave me no duty cycle. if i have enoegh heatsink...




Top