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  • kecked's Avatar
    Today, 03:39
    kecked replied to a thread Laser chiller in Lasers, All Kinds.
    diwater is very corrosive to all metals. It will try to suck as many cations out of the surface as it can. The inhibitors are buffers that prevent this. Diwater is also wonderful media for growing bacteria. The fungicide bactericide stops that. No way around it.
    5 replies | 271 view(s)
  • javanam's Avatar
    Yesterday, 22:35
    javanam replied to a thread Laser chiller in Lasers, All Kinds.
    Thank you for critical info.. This chiller is originally designed for trumpf multi kw CO2 lasers but i want to use it with rofin SC x30 (head & rf psu) 300w and trumpf trudisk 6kw. For sure has more cooling capacity than these lasers want but that's not a problem.. Are the copper & aluminum...
    5 replies | 271 view(s)
  • Lazerjock's Avatar
    Yesterday, 05:33
    I'm flying out of Phili. My is at 5:15PM I would love to ride in the Tesla. I'll chip in for gas. Lol Chris
    157 replies | 14992 view(s)
  • HankLloydRight's Avatar
    Yesterday, 03:34
    Ok, I just cancelled my Florida Keys diving trip (they're stuffing 30 divers on a dive boat these days, and that does not sound like fun at all), but I can still do an airport run to BWI on Friday morning if anyone needs that. I can also do a PHL run if people have flights in the afternoon on my...
    157 replies | 14992 view(s)
  • lasermaster1977's Avatar
    07-21-2021, 18:45
    I built a DIY A-102 drive amp based on GS's schematic in their GS-100 series open-loop galvos, shown here that uses back EMF feedback to improve step response: Unless you are just wanting an exact duplicate of their original A-102 drive amp, layout isn't that critical. My version is shown...
    12 replies | 737 view(s)
  • glorocks's Avatar
    07-21-2021, 13:38
    Thanks for looking- Can anyone else help?
    12 replies | 737 view(s)
  • laserist's Avatar
    07-21-2021, 13:16
    A typical AOM uses a fixed drive frequency to produce effectively a diffraction grating. By amplitude modulating the drive signal the intensity of the light transiting the AOM can be controlled in a pretty linear fashion. In an image setter you want to have multiple frequencies individually...
    51 replies | 2413 view(s)
  • cfavreau's Avatar
    07-21-2021, 12:43
    A plate printer?
    51 replies | 2413 view(s)
  • Methelina's Avatar
    07-21-2021, 11:53
    If i understand well this aom was used to form a deflected way of ray into the half-round cavity to cure the ctp-offset plates in the ctp machine. I think it will be a pretty hard task to make it work
    51 replies | 2413 view(s)
  • cfavreau's Avatar
    07-21-2021, 11:41
    You are light years ahead of me. I just know the very simple basics. I would just look into an existing driver for a single channel and try that. I imagine running 10 channels will have some complexity to it however. Should it not function as a single channel AOM as well?
    51 replies | 2413 view(s)
  • Methelina's Avatar
    07-21-2021, 10:53
    Yeah, i know how they work ;) but the problem is what kind of signal, voltage, freq and so on. Fir the every aom need their own pulse forming network as a proper driver. Just sending a random rf signal will not work on my opinion.
    51 replies | 2413 view(s)
  • lasermaster1977's Avatar
    07-21-2021, 10:08
    Yes, I do, and will post shortly. (Oops, sorry. I thought I did but only have their A-600 driver board.) If interested, here is my version of an open-loop drive amp that I used on the GS-115 galvos back in 1977-1979 using the single uA791 op-amp driver. This could easily be modified to be a...
    12 replies | 737 view(s)
  • cfavreau's Avatar
    07-21-2021, 09:48
    Typically you would feed a RF signal into each of the channels. That in turn drives a piezo element that is bonded to the surface of the crystal. The RF signal turns into a acoustic wave in the crystal and the crystal changes index of refraction depending on where the peak and trough of the wave...
    51 replies | 2413 view(s)
  • Methelina's Avatar
    07-21-2021, 09:14
    Yeah, absolutely agreed! I think its a true 10ch AOM, but mr. Steve still not share some info about how to deal with this kind of AOMs, as he told before :)
    51 replies | 2413 view(s)
  • mixedgas's Avatar
    07-21-2021, 07:35
    mixedgas replied to a thread Oops in The Lounge
    " I prefer watching the launches of independent bookstores. They’re a lot more entertaining. And they actually occupy space." Dan Rather quote on the Launch. Steve
    9 replies | 191 view(s)
  • glorocks's Avatar
    07-21-2021, 05:26
    Does anyone out there have a photo of the old GS A-102 amp card? I need to see the parts layout- going to build a couple Thanks, Jay
    12 replies | 737 view(s)
  • HankLloydRight's Avatar
    07-21-2021, 04:17
    HankLloydRight replied to a thread Oops in The Lounge
    From Jon Stewart: https://twitter.com/jonstewart/status/1417557259886940162?s=20
    9 replies | 191 view(s)
  • JStewart's Avatar
    07-21-2021, 00:52
    JStewart replied to a thread Oops in The Lounge
    Austin Powers. it’s a huge, giant, enormous…. https://www.youtube.com/watch?v=K1JgMxRm--0
    9 replies | 191 view(s)
  • james's Avatar
    07-20-2021, 20:54
    james replied to a thread Oops in The Lounge
    Sorry. I should probably have more empathy considering half of you are his employees.
    9 replies | 191 view(s)
  • james's Avatar
    07-20-2021, 20:49
    james replied to a thread Oops in The Lounge
    We just witnessed the launch of a giant dick into space and apparently there was a rocket involved too.
    9 replies | 191 view(s)
  • Shadow's Avatar
    07-20-2021, 20:41
    Shadow replied to a thread Oops in The Lounge
    I guess earth is a giant boob then. But yeah a weird design choice for sure. A bit suggestive
    9 replies | 191 view(s)
  • james's Avatar
    07-20-2021, 19:36
    james replied to a thread Oops in The Lounge
    Didn't know I'd have a front row seat to the end of humanity. Giant dick rocket? Who saw that coming? Where is the popcorn?
    9 replies | 191 view(s)
  • rns0504's Avatar
    07-20-2021, 19:20
    We have a ClubMax10 with Beam Brush we're bringing to put in auditorium but we won't arrive until Tuesday night. I think it's FB4 with ultimate. I'll check with Lyra. Let me know if anything is needed and I'll see what I can make happen
    10 replies | 555 view(s)
  • james's Avatar
    07-20-2021, 19:06
    james replied to a thread Oops in The Lounge
    Foreskin? .............
    9 replies | 191 view(s)
  • mixedgas's Avatar
    07-20-2021, 17:49
    mixedgas replied to a thread Oops in The Lounge
    Oh, What an ugly beast. Somebody watched too many episodes of *Moon Base Alpha" or "Salvage 1" on Retro TV. That lack of a fairing at the capsule junction must eat some fuel with the extra drag. Steve
    9 replies | 191 view(s)
  • james's Avatar
    07-20-2021, 16:06
    james started a thread Oops in The Lounge
    Our mission: To seek out new worlds and new civilizations; to boldly go where no giant dick rocket has gone before!
    9 replies | 191 view(s)
  • polishedball's Avatar
    07-20-2021, 14:55
    I have one other beastie boys track Intergalatic made with Digisynth. That also reminds me if you need fill I have a greenday, pop, rock, and hiphop show and few others made with digisynth kinda basic but sync'd well and have some nice abs. Chuck Rau did these and there are some ilda winners in...
    10 replies | 555 view(s)
  • cfavreau's Avatar
    07-20-2021, 11:18
    Are you sure that isn't the AOM crystal with the wires running to it? It sure looks like one. In the video there is a coating on it and it looks like the piezo is glued onto the crystal... the wires run right to the piezo which is attached to the crystal. The circuit board only looks passive...
    51 replies | 2413 view(s)
  • Lazerjock's Avatar
    07-20-2021, 11:08
    Glad you're going to make it Steve!
    157 replies | 14992 view(s)
  • mixedgas's Avatar
    07-20-2021, 10:21
    I'm looking at WED-THUR, Two days. Mom is in assisted living, slowly fading, and this determines if I can travel. I intend to come. Driving in case I have to rush some place. I have family in DC, an ancient aunt and uncle, I'd like to see for a half day. Steve
    157 replies | 14992 view(s)
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