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  • VDX's Avatar
    Yesterday, 21:45
    ... a hint for transparent glue - here in Germany I'm using "Acrifix 192" for glueing/fusing Plexiglas ... it's curing to pure PMMA, so too usable for "optical chaos" sheets :cool: Viktor
    7 replies | 116 view(s)
  • Slide's Avatar
    Yesterday, 14:53
    Great tips. Thanks. For the lenticular FX we've ordered a couple of different small sheets from these folks we discovered on line to try out. www.vicgi.com They sell small quantities at reasonable prices. Time will tell it it works or not. Cheers, Craig
    7 replies | 116 view(s)
  • Slide's Avatar
    Yesterday, 14:05
    Thanks, yes, sounds like fun. We've played around a bit with that. It's cool, also the old airplane glue etc for lumia FX. Craig
    7 replies | 116 view(s)
  • Slide's Avatar
    Yesterday, 14:01
    Yes, I've talked to John on the phone and his module looks great, it's very sophisticated, and we may go that route down the line. We got a couple of the basic OPT versions before we knew about John's stuff and we'd like to customize those first probably. Thanks, Craig
    7 replies | 116 view(s)
  • VDX's Avatar
    Yesterday, 12:12
    ... you'll get all sort of weird and funny "optical" stuff, when placing pieces of PMMA or other transparent thermoplastic materials ontop of elcetronic coolers, wire-meshes or other regular (or irregular too) structured metal surfaces into an oven and heating them at 120 to 140 centigrades (PMMA...
    7 replies | 116 view(s)
  • mixedgas's Avatar
    Yesterday, 11:30
    You could just buy the whole thing from Technological Artisans, John has a module with two steppers and a DMX controller that fits in front of a scanhead. Steve
    7 replies | 116 view(s)
  • KANG's Avatar
    06-16-2025, 06:53
    Pretty Knobs Laser Projector Hardware, Reimagined. Still using the stock locking handles? You know the ones that snap shut like a bear trap, never sit right in your case, and make your laser projector look like it's begging for retirement? Cool. We took the unhinged colors of SpongeBob's...
    0 replies | 66 view(s)
  • ablelaser01's Avatar
    06-16-2025, 00:10
    Our Archer lasers are well know with strong stability and high brightness. Specially Archer20-60W RGB. You almost don't need to align them. We have many loyal fans who love and praise our products and given us more repeat orders. They also recommended our products to their friends. Our lasers...
    0 replies | 45 view(s)
  • ablelaser01's Avatar
    06-16-2025, 00:03
    Hi Conner, Do you consider ABLE laser? www.able-laser.com And do you have a budget? We have many customers in USA. If you can supply a budget and power scope, maybe we can help. For fast response, pls contact Ellen Chai, sales@able-laser.com
    2 replies | 771 view(s)
  • Laser57's Avatar
    06-15-2025, 15:46
    I have a lot of 35W 975 nm fiber modules which were sold as tested and good, the ones I powered up were, but I don't use lasers for anything practical, just for fun and still have two eyes too. I live out in a very rural area and have room to play, no airports anywhere near me but also not pointing...
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-15-2025, 15:40
    ... when powerfull enough, then it's pretty good suited for metal: - welding, melting, cutting ... and "3D-printing" >:) The 40W@975nm-diodes with attached 0,1mm-fibers were already enough, to melt lowtemp melting metal powder or many (dark) powders of other materials like plastic, lignin, glass...
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-15-2025, 15:27
    What else to do with 1064 nm :p It's a long term project, but I have a few of them...... I made a SHG once before using 1064 nm out of a 15 KW peak power pulsed YAG, average power was only a few watts at 1064.
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-15-2025, 15:01
    ... ah, so meant for frequency doubling -- then good luck!
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-15-2025, 14:08
    I have a lot of laser junk, mostly good parts, but no lasers which produce more than 10W at 532 nm. Would like to use these heads, have three of them, to build a high power 532 nm laser using one or two if OSC and PA arrangement.
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-15-2025, 13:20
    ... interesting design -- round 20 years ago I've helped to assemble the "ringfocus-laser", where 80(!) 20W-Diodes were collimated and the beams combined into 1.6kW on a "spot" roughly 6mm wide for metal welding. Actually I have many IR-Laserdiodes with up to 40W fed through 0,1mm-fibers or...
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-15-2025, 11:38
    Each ring has five diode assemblies, each producing 20 watts IR.
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-15-2025, 10:44
    ... so in optimal setup around 100Watts averaged. If I think about te actual DPSS IR-Laserdiode modules wit 2Watts "output power" (read "averaged") -- they're pumping with a 25W-IR-Laserdiode and AFAIK 808nm wavelength ...
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-15-2025, 08:11
    There are three 100W ring diode pumps in one ND:YAG head for this one, so that's 300 watts of IR pump into one YAG.
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-15-2025, 07:45
    ... with 100Watts pump power in a DPSS setup with AOM modulation the estimated pulse-peak-power should be something like some 10 to 100 Kilowatts and the averaged "CW" power is highly depending on the cooling methodes :cool:
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-15-2025, 06:49
    Pulsed high current DC to the diodes, I don't have a power supply capable of doing so but for now, want to use them at a constant current with a AOM or something to produce short bursts, high peak power out of the ND:YAG to produce more efficient SHG conversion to green. I was wrong about the IR...
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-14-2025, 15:42
    ... sounds reasonable :cool: On the other side - when only shortly activated (and with massive cooling), diodes can be "overpowered" with up to 50% for some millisconds and up to several 100% for microseconds ... then they'll need some seconds for cooling down. So for "pulsing" applications...
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-14-2025, 14:43
    The donut diode rings are each 100 watts, I believe this is likely DC watts into the diodes, three 100 watt rings producing 300 watts at 50% efficiency would be 150 watts of IR pump power, so it stands to reason the output of the ND:YAG is 1/3, or 50 watts, perhaps 60. Is my reasoning valid?
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-14-2025, 10:34
    ... for typical power-efficiency with diode pumped lasers, here some numbers: Sometimes around 2005 I had a "disk"-laser with 20Watts averaged, which was pumped with a 60Watt IR-laserdiode-module. Modern fiberlasers too needs around 3x the later "averaged" output power as combined...
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-14-2025, 07:34
    Ah, 120+ with flash lamp. Best I've come to find for the ND:YAG output of the diode pump driven 300W Avia Thor head is about 40 watts for a single head, but when searching online for typical output percentage of the pumped power for 1064 nm output, estimates are much higher. Appears I have a bad...
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-14-2025, 06:03
    ... the two old ones (120W/150W) were not DPSS, but flas-lamp pumped ... much lower efficiency, as with diodes -- I'll estimate something like 3-5%, instead of around 35% with DPSS. I've stored one of the resonator chambers and got some water-cooled 405nm-LED's with 9W and 100W output, to pump...
    39 replies | 12717 view(s)
  • Laser57's Avatar
    06-14-2025, 04:56
    You could get 120+ watts out of one single ND:YAG from the Avia Thor when pumped at 300 watts? Impressive, especially 150W. Just wanted to confirm this is possible from a three diode ring Avia Thor ND:YAG, thanks.
    39 replies | 12717 view(s)
  • VDX's Avatar
    06-14-2025, 00:28
    ... my two old ones had 120W and 150W (salvaged and sold) ... actually have a "medical" with 60W ... but not "CW" but "averaged" :cool:
    39 replies | 12717 view(s)
  • laserist's Avatar
    06-13-2025, 19:21
    https://www.edmundoptics.com/f/cylindrical-microlens-arrays/14569/?srsltid=AfmBOoqPRaoY7kBmJmyCHjFir-v_CxZpJByadnBU-rudHpw1XRtIzl0Q https://www.meetoptics.com/lenses/array?srsltid=AfmBOoqMqVH3CC5DUhaw5Jke-lrZ1QqBiEbkKoqc4V0YG5gD9z16nPBQ I know, a bit pricey. You could try cutting a bunch of...
    7 replies | 116 view(s)
  • Slide's Avatar
    06-13-2025, 15:37
    Not exactly Lumia, but we are attempting to modify a commercially available motorized DMX controlled D/G disk. The Lumia port is pretty good but we would like to swap out a couple of the other effects for a lenticular grating that gives a sort of "3D" effect, and also looking for a Fuzz effect....
    7 replies | 116 view(s)
  • Slide's Avatar
    06-13-2025, 14:49
    Thanks Gang 2025, Looks like some interesting components. We are actually pretty low volume guys, but will keep you in mind and pass along the info to our friends. Craig
    7 replies | 10283 view(s)
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