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  • Datsurb's Avatar
    06-17-2020, 03:33
    O_oO_o Google was not able to give me the answers i neede, so I ask the highly skilled crew of PL once again. :-) I have a neighbor about 30 meters (100 feet) away, and they are playing quite high music every evening/night. We have tried the friendly chat a couple of times, but they just don`t...
    21 replies | 746 view(s)
  • Pangolin's Avatar
    07-07-2020, 22:47
    Mike's camera apparently kept going in and out of focus. I'm not sure what the heck was going on here ;-)
    21 replies | 605 view(s)
  • Pangolin's Avatar
    07-02-2020, 02:06
    I'm not quite sure why the claims that I bought my son a Mercedes using Pangolin money is being brought up again on Facebook, but apparently that narrative is being resurrected. I really don't participate on Facebook very much any more, because of all of the vitriol that is found there -- plus...
    16 replies | 684 view(s)
  • lasingfox's Avatar
    06-20-2020, 17:02
    I finally got a fog machine and fixed it up and my krypton argon cooling system somewhat sufficient:in-love:
    11 replies | 1064 view(s)
  • jdavis7765's Avatar
    07-06-2020, 09:03
    Hey everyone, I wanted to start a new thread which is somewhat a continuation of I will have my new Compact 506 Scanners today and have a few questions on the upgrade as I really do not want to fry...
    15 replies | 343 view(s)
  • Junktronix's Avatar
    07-07-2020, 09:19
    I'm working on a simple beam expander for some Taipan lasers. One negative lens and one positive lens with a mechanism to adjust the distance between them. Commercial units all seem to use achromatic lenses. Is there any advantage to using an achromat over a simple (i.e. cheap) spherical lens when...
    11 replies | 232 view(s)
  • -bart-'s Avatar
    06-30-2020, 11:52
    Hi, does anyone have some experience with the polygon scanner assemblies from laserprinters ? Most of them are very slim, and I would like to land a multimode beam on them. So I'm looking for polygon mirror assemblies that have a aperture at least 4mm high. There are lots on ebay and Chinese...
    7 replies | 339 view(s)
  • clickamouse's Avatar
    06-18-2020, 06:01
    Here are Witcher, Clickamouse, and Draco, all wearing masks I designed based on the Lumia Jam we had at SELEM last year. After 4 months of quarantine, we all met at my studio to discuss future directions and current projects. We're all busy building laser stuff while we await the hoped-for...
    7 replies | 477 view(s)
  • polishedball's Avatar
    06-23-2020, 17:53
    Will Beams terminate on surface water of a lake? I know some reflects up but it always seems to be scatter. Thanks for any info.
    2 replies | 816 view(s)
  • stepawayfromthemachine's Avatar
    06-16-2020, 06:14
    Good afternoon all If there is a thread already running on my question please feel free to direct me. Had a good search but haven't found anything quite right for my requirement. I occasionally help run a local club night and the last few we have done i have added a bit more visual...
    6 replies | 399 view(s)
  • clickamouse's Avatar
    06-22-2020, 05:52
    Greetings, all; Due to popular demand, we now have an Illuminatus Merch site on Zazzle, where we are selling facemasks, shirts, and lunchboxen(!) The design is based on our lumia jam from last year's SELEM. Thanks to Illuminaut...
    2 replies | 798 view(s)
  • wheezyliam's Avatar
    06-30-2020, 05:47
    Hello there. I've recently been looking into the Wicked Lasers Lasercube, and it seems like a great buy especially considering its price and capabilities. However, that little thing is a Class IV laser and outputs wayyy too much power for my prospective applications. I was hoping to use it at...
    5 replies | 320 view(s)
  • buffo's Avatar
    07-08-2020, 07:18
    Hey Everyone; I just got an alert E-mail from the EMS Division Director at the South Carolina Department of Health and Environmental Control. He wanted all EMTs in the state to read and understand the significance of this recent CDC announcement: Link:...
    6 replies | 224 view(s)
  • jarecky's Avatar
    06-13-2020, 03:41
    Hi! I wanted to create a multi laser show to some emotional song. I chose epic trailer version of “I ran” and I hope you’ll like it! this is my first attempt to make multi laser show, so please, be forgiving 😅 let me know what you think!
    4 replies | 371 view(s)
  • plazmatron's Avatar
    07-04-2020, 12:12
    I though you guys might appreciate this video. An LSI Nitrogen Laser teardown, and a Dye Laser Demo! Cheers!
    5 replies | 231 view(s)
  • dmwarnke's Avatar
    06-18-2020, 12:00
    Can someone tell me what this is called and possibly who makes it? I know it changes the beam direction 90 degrees, that about it. It has a crystal in it and it is powered I think to move the crystal.
    4 replies | 309 view(s)
  • lasingfox's Avatar
    07-07-2020, 15:18
    i decided to setup all the currently functioning lasers i have to make a rainbow because AAA IT LOOKS SO GOOD! from right to left is 650nm, 647nm, 633nm, 568nm, 532nm, 505nm, 457-514nm in one beam and finally 405nm!
    5 replies | 287 view(s)
  • absolom7691's Avatar
    06-13-2020, 00:54
    I "very" loosely understood how fiber lasers actually worked but I found this video on youtube that really helped me understand fiber lasers a lot better. Very cool, worth a watch if you're curious. I still can't believe how much lasers have changed in the last 30 years since I first started...
    3 replies | 251 view(s)
  • Eidetic's Avatar
    06-19-2020, 06:16
    I just got confirmation that I've located a pic of the first commercial green laser pointer. It was produced in Moscow in 1993 by Laser-Compact Group, and distributed by Laser2000 in Europe and Power Technology here. The ad below shows it, from Photonics Spectra magazine of September, 1994. The ad...
    4 replies | 204 view(s)
  • HexaCube's Avatar
    07-07-2020, 11:19
    First of all hello everyone, I was recommended to post my following question in this forum, I apologise if I'm posting this in the wrong area! For dabbling in SLS printing I'm considering buying the afforementioned Galvo Scanner. Sadly, as I'm not exactly into the laser business yet, I'm a...
    3 replies | 192 view(s)
  • Junktronix's Avatar
    07-06-2020, 16:23
    I dug up some color correction boards I was apparently going to use in a projector years ago. I have 2 of the 4 channel boards like this and one of the DS3+ Colour correct & axis flip like this ...
    2 replies | 206 view(s)
  • rodman1369's Avatar
    06-16-2020, 18:04
    Looking for recommendations...experiences? Hopefully in the under $300 range? Looking for my spouse as a possible birthday gift for Me in July :D...and a gift for 80+ year old pop-in-law after we try out. Comments on cleanliness, easy to empty, battery? You know... Thanks in advance. rodman1369
    1 replies | 306 view(s)
  • turbohead's Avatar
    06-15-2020, 05:43
    Does anyone know the pinout and power requirements for this type of laser diode?
    2 replies | 180 view(s)
  • carlos3621's Avatar
    06-23-2020, 10:58
    carlos3621 started a thread SELLING : Pangolin Beyond with FB4 in Buy/Sell/Trade
    for sale: spare FB4 with Beyond Advanced license. price: 1500 usd includes shipping.
    0 replies | 323 view(s)
  • Eidetic's Avatar
    Yesterday, 06:35
    Here's one that's really, really old. This RCA type TA2628R GaAs laser was made in February of 1969 according to the data sheet in the box. Looking through old publications, I found the "new product introduction" for it in The Laser Newsletter of December 1966, and the ad below in Laser Focus the...
    1 replies | 65 view(s)
  • Elektrotechniker's Avatar
    06-30-2020, 15:33
    Elektrotechniker started a thread SELLING : RIYA LITE DAC in Buy/Sell/Trade
    i have a riya lite dac. it works like new. barely used. it needs a new home. pm me with an offer
    0 replies | 264 view(s)
  • dar303's Avatar
    06-17-2020, 05:09
    Hi, I have a spare Kvant 1.8W RGB set with dichro and bounce mirror that I would like to trade for a smaller RGB direct injection diode set, DIY is ok if it is nicely done! I recently bought a small enclosure and would like to build a compact projector for programming/home use, the Kvants are...
    0 replies | 149 view(s)
  • Eidetic's Avatar
    06-15-2020, 18:15
    Well, for green laser pointers it's really old. Here's the model GP4 made by the Taiwan company Limate in 1998. Along with the operational laser, I got the wooden box, the outer box, instruction sheet, brochure, and the receipt for its purchase in January 1999. The laser gives a double beam output...
    0 replies | 137 view(s)
  • VDX's Avatar
    Today, 12:06
    ... I've simulated (with discrete setups and "evolved") and tested some beam-optics with different lenses for monochromatic beams (high-power LED's and lasers) and found the results with aspherics and achromats comparable and much better than with "normal" spherics ... the wider the beam (or...
    11 replies | 232 view(s)
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