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  • aberry's Avatar
    Yesterday, 14:01
    Brightness is a complicated question for several reasons: Eye sensitivity as a function of wavelength depends on whether the eye is adapted for light conditions (photopic vision), dark conditions (scotopic vision) or somewhere in the middle (mesopic vision) It depends on the spectral...
    2 replies | 72 view(s)
  • JohnYayas's Avatar
    Yesterday, 12:32
    I don't know how 520/532 compare in terms of brightness but I think that the red in that cube is a bit weak. Also, if you are presenting text you should be paying attention to the galvo specs. They are listed as >8deg @ 30000 but I don't know. Check with someone who has one to be sure and see...
    2 replies | 72 view(s)
  • afeudale's Avatar
    Yesterday, 09:33
    I'm on the fence between a new controller for my existing 532nm 800mW DPSS system or selling it and going with a LaserCube 1W/2W RGB system... We mainly do outdoor, nighttime advertising of text for companies, so perceived brightness is the main factor for us. I found some specs online for...
    2 replies | 72 view(s)
  • afeudale's Avatar
    Yesterday, 06:03
    With whatever software comes with the projector :) Something like a LaserCube comes with software good enough for our purposes. Nothing fancy required, most of what we do is just plain text.
    2 replies | 104 view(s)
  • james's Avatar
    Yesterday, 05:48
    How do you plan to make your own vector art?
    2 replies | 104 view(s)
  • fuzzy's Avatar
    06-01-2020, 17:16
    I had my luck today and found a scientific paper that discusses micromachining Scotch tape with a laser. Apparently, it's the easiest way to get microfluidic devices to work. While 266nm lasers are probably still impractically expensive, it gives at least some hope that it is possible to...
    28 replies | 469 view(s)
  • fuzzy's Avatar
    06-01-2020, 15:37
    Hi Viktor, yeah, nothing suggests that 352nm would be substantially more absorbing than 365nm. But I still want to try, so I bought an LED with the following spectral response: This covers the target wavelength, even though it's only half bright at 352nm. Once the LED is here, I will...
    28 replies | 469 view(s)
  • afeudale's Avatar
    06-01-2020, 08:49
    I have another post where I'm looking for a Standalone ILDA controller, but failing that, I'm open to a full projector that has the capability to run *without* a computer. i.e. something that has built in memory or an SD card slot to store the shows LaserCube type system would be an example....
    2 replies | 104 view(s)
  • davidmaster's Avatar
    06-01-2020, 08:10
    hello Adam thanks for the very comprehensive answer. Actually my english is scholastic, but I use a lot of google translator :o Your circuit is also very interesting, thanks. I have not yet implemented an ILDA card in my projector, I am using FB4 with its features. FB4 already has a PWM output...
    2 replies | 144 view(s)
  • swamidog's Avatar
    06-01-2020, 07:59
    swamidog replied to a thread Static Lumia pics in Lumia
    all the door knobs in my old chicago bungalo were old faceted glass. i kind of regret not grabbing them before i sold the place.
    31 replies | 2052 view(s)
  • buffo's Avatar
    06-01-2020, 07:51
    The C=64 SID chip was pretty cool, and it still enjoys a loyal following today. There are companies that have built small Synth rigs around that chip, and you can still buy them today. (They are expensive though - much more than a used Commodore 64!) It's really crazy to hear some of the...
    286 replies | 72412 view(s)
  • buffo's Avatar
    06-01-2020, 07:45
    buffo replied to a thread Static Lumia pics in Lumia
    Is that the correct style doorknob? I seem to remember the one that Ryan was using for the Laser Spectacular show had a lot more facets... Honestly, $80 isn't all that bad. I didn't think they were even making these things anymore... Adam
    31 replies | 2052 view(s)
  • buffo's Avatar
    06-01-2020, 07:41
    buffo replied to a thread Laser projector safety in Modifications
    Hello David; Thanks for sharing your experiences. Many people here followed a path similar to yours. I've been fascinated with lasers since the mid-to-late 1970's, but it wasn't until the early 1990's that I could afford to purchase one, and it's only been in the last 15 years or so that I've...
    2 replies | 144 view(s)
  • rns0504's Avatar
    06-01-2020, 05:27
    Got you Steve! Going to see if I can just switch this to a "June Sale for PL Members"... like you said, why should only select few have all the fun...?
    12 replies | 505 view(s)
  • VDX's Avatar
    06-01-2020, 00:24
    ... so not worth the hassle :( Viktor
    28 replies | 469 view(s)
  • fuzzy's Avatar
    05-31-2020, 20:11
    A small update: before I can justify spending a fortune on the 352nm laser, I want to be sure that it would be able to cut transparent scotch tape. So far, it's the most difficult material in the mix. Since true UV lasers are expensive, no matter wattage, I had to resort to UV LED light to test...
    28 replies | 469 view(s)
  • dchammonds's Avatar
    05-31-2020, 18:43
    Now available at your local toy store...
    83 replies | 6592 view(s)
  • afeudale's Avatar
    05-31-2020, 14:07
    afeudale replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    I think the point of this thread has been lost a little bit...lol Not trying to piece together my own system out of sound cards, etc. - AFAIK standalone/SD player systems already exist, so not looking to reinvent the wheel :) Just looking to see if anyone has a standalone system/SD card...
    7 replies | 137 view(s)
  • JohnYayas's Avatar
    05-31-2020, 12:42
    JohnYayas replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    What do you mean by ILDA control standards? I think most of the SD card Chinese work with ILDA files. There are no ILDA compliant DACS as far as input goes except for IDN network DACS. The output is pretty standard across everything. Basically +-5v differential. Granted the Chinese things might...
    7 replies | 137 view(s)
  • james's Avatar
    05-31-2020, 11:16
    james replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    You can do this with a Raspberry Pi and a modified USB sound device + correction amp. I guess the learning curve is high, but it shows you what's going on. You do need to have a model of how things work in your head, I suppose. You import an ILDA frame set and you output a LaserBoy wave file....
    7 replies | 137 view(s)
  • afeudale's Avatar
    05-31-2020, 10:37
    afeudale replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    Thanks JohnYayas! We definitely think the same way, as I already thought to check Alibaba for either a projector I could canibalize for the controller OR the controller components themsevles. Unfortunately, not much luck with either route. I think they use non-ILDA control standards and that...
    7 replies | 137 view(s)
  • JohnYayas's Avatar
    05-31-2020, 09:56
    JohnYayas replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    I think RIYA might have one but I haven't heard from the lately. Not sure if they are still in business. There are a bunch of chinese laser projectors with SD cards and DMX. You might be able to check alibaba and find a source for the controller portion of the projector or just buy the cheapest...
    7 replies | 137 view(s)
  • afeudale's Avatar
    05-31-2020, 08:30
    afeudale replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    Thanks for the reply, but I think those controllers require a computer? I have a Moncha Lite controller right now, but looking for something I can dump the files onto (most have an SD card), so that the system can run standalone without a computer.
    7 replies | 137 view(s)
  • absolom7691's Avatar
    05-31-2020, 07:40
    absolom7691 replied to a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    You could try the Helios DAC. There are few options cheaper. About the cheapest is Laserboy and a modified sound card but the learning curve is exceptionally high and Laserboy doesn't really allow for live control during a show or event.
    7 replies | 137 view(s)
  • afeudale's Avatar
    05-31-2020, 06:55
    afeudale started a thread BUYING : Standalone ILDA Controller in Buy/Sell/Trade
    Hi everyone! Looking for a simple Standalone ILDA controller with software. Used or new doesn't matter. Looking to control a simple 800mW DPSS 30kpps system without a computer for mobile advertising purposes. Was looking at LaserWorld ShowNET and also Etherdream, but prefer something less...
    7 replies | 137 view(s)
  • ManoleStefan's Avatar
    05-31-2020, 05:31
    ManoleStefan started a thread SELLING : Cambrigde Tehnology 678 in Buy/Sell/Trade
    I want to sell 2 drivers Cambrigde Tehnology 678 and 2 galvos Cambridge Tehnology 6850P Price in 400 dollars for all product and for one product is 120 dollars. Was used max 250 hours, are in very good conditions.
    0 replies | 127 view(s)
  • davidmaster's Avatar
    05-30-2020, 23:37
    Goodmorning everyone thanks to this beautiful and very useful forum, unique in its kind. Sorry for my bad english. I'm Davide from Italy. Passionate about lasers since childhood. I was 13 when I saw this videoclip (https://www.youtube.com/watch?v=cgONWacjrT0) and fell in love with that "green...
    2 replies | 144 view(s)
  • mixedgas's Avatar
    05-30-2020, 06:44
    Can you put me down for a set? Why should they have all the fun. >:) Steve
    12 replies | 505 view(s)
  • absolom7691's Avatar
    05-29-2020, 16:45
    I mean this in the most positive way but... Every forum seems to have a Steve(mixedgas)! A delightfully grumpy pro that has practically touched every device in his field. There is a user on a pinball forum that I frequent and like Steve, this guy has seen and probably worked on them all. Not...
    0 replies | 152 view(s)
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