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  1. RedCowboy

    The Orwellian Nightmare is closer than you think.

    We already know everything we say and do/purchase online is saved in our forever files and cellphones collect a lot of data other than voice/texts/pics but with these private companies wanting to fashion individual advertising as well as spy for big brother without a warrant and they do, private...
  2. RedCowboy

    CO2 or active fiber ?

    The box looks too small for a CO2 tube and cooler, also the objective/output optic is too small, I'm thinking active fiber.... Yes this company makes a lot of CO2 lasers but this is their fiber laser upgrade to a tree branch and power line clearing system.
  3. RedCowboy

    NUBM0C

    NUBM0C Looks like a NUBM07 only stronger and with the shorter Gball can, we could ask OpticsLD for some recanned with a window can, I have one ordered to check the divergence...
  4. RedCowboy

    Laser Space Cannon

    Something interesting, I wonder what lasers they are using and how well collimated they are ? 500w cannon could be 100 x 5w laser diodes. https://phantomdynamics.com/phantom-dynamics-laser-space-cannon-skybeam-searchlight/
  5. RedCowboy

    PBS cube testing

    I tested some PBS cubes and some of the cheap ebay units don't hold up, this smaller size cube I got from a member seems to work well, anyone have any links to known good cubes that can take multi watt beams ?
  6. RedCowboy

    Techhood c-lens pair for multi mode greens.

    I ordered a pair of the 2X ? c-lens from ebay for 1w 520-525nm, they just arrived today and are the smallest I have seen yet I will post a pic or two when I test them. They look like about 5 x 8mm and 7 x 8mm which will be just fine for use with a G2 primary and good for compact...
  7. RedCowboy

    Where to buy springboards ?

    I often make my own but that means a creative ground if not using a case pin..........I would like to by some 17mm and 20mm spring boards for some compact builds.
  8. RedCowboy

    Optics site with lots to investigate.

    I just started exploring this site and it seems to have a lot of interesting stuff, several things I have not seen before. https://lightmachinery.com/optics/custom-optics/laser-optics-lenses/?gclid=Cj0KCQjw-af6BRC5ARIsAALPIlVvsE0WoUZtABVYXG5a2waFpgch4DwzcJxV433SwVKBIci6msfuzkcaAva0EALw_wcB...
  9. RedCowboy

    Beam quality.

    Only 100w with about 125mm ?? objective maybe 100mm ( 4 inch ) actual objective inside.......focus pretty tight.
  10. RedCowboy

    Some new reds ?

    Anyone seen these before ? https://www.ebay.com/itm/637-638nm-9W-12W-16W-20W-red-laser-bank/174343217371?hash=item2897aa60db:g:S2MAAOSwhuRfA-sN
  11. RedCowboy

    Reflector question

    Looking at the width of the emitter banks/strips and the alignment I wonder if the 4 reflectors at the bottom pass through from the back side but reflect on the front side ? I assume all 4 emitter strips are of the same wavelength. If so I would like this " one way " coating for 440-450nm...
  12. RedCowboy

    Multiple beams

    Sheltering in place and being somewhat bored I bought a used projector for cheap with 2300 hours and harvested 24 x M-140 diodes that work very well, I am driving 4 laser diodes in series @ 1.6a using a LM338 as a current regulator using 0.8 ohms across the adj. and output pins and 8 x 18650 in...
  13. RedCowboy

    Sharp GH04C05B9G 5W 440-450nm

    https://www.ebay.com/itm/Brand-New-SHARP-GH04C05B9G-440nm-5W-Blue-Laser-Diode-TO-5-9mm-LD/174244386263?hash=item2891c655d7:g:VZ8AAOSweoRd5hiX Been waiting to try these out, divergence looks to be slightly worse than 7A75 much like the nubm44
  14. RedCowboy

    Great product name.

    https://www.youtube.com/channel/UCcJzX6l6xWjYOwJpoTgvSbg
  15. RedCowboy

    RGB hand held 400mw at O-like 269.00

    Anyone know if it's any good ? Also wonder about the RGB engine, could it be a RGB diode or a micro dicro package.......will be looking for the tiny engine for sale because at this price I expect they are using a small RGB module rather than a custom build with 3 diodes are optics........Looking...
  16. RedCowboy

    LEP

    Noticed some more LEP items for sale besides the acebeam w-10 and w-30 flashlights. https://www.ebay.com/itm/Weltool-848M-LEP-Tactical-Flashlight-18650-Spotlight-Outdoor-Long-Throw-Light/362648763832?hash=item546f8cfdb8:m:mGtYETYLnNH3EYa0znanCFQ...
  17. RedCowboy

    Russian nuclear rocket explosion

  18. RedCowboy

    Blue laser diodes could come with FAC

    Hope to see some high output blue diodes with FAC for sale soon. https://www.laserfocusworld.com/lasers-sources/whitepaper/16573876/fisba-ag-fast-axis-collimators-for-high-power-blue-laser-diodes
  19. RedCowboy

    Videos you wish to share part two.

  20. RedCowboy

    100mw 520 module from techhood/ebay

    I won a 100mw 520nm module from techhood on ebay, I have bought quite a lot from techhood but this module is clearly underspec. I also tested the TTL input and still it would not do more than 39mw. If you buy from ebay be prepared to deal with crap like this...




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