Activity Stream

Filter
Sort By Time Show
Recent Recent Popular Popular Anytime Anytime Last 24 Hours Last 24 Hours Last 7 Days Last 7 Days Last 30 Days Last 30 Days All All Photos Photos Forum Forums Groups Groups
  • buffo's Avatar
    Today, 04:23
    I know what you mean! We've had to start using alternate sources of sanitizing products at work as well, and some of them smell terrible... About 6 weeks ago we purchased some medical-strength sterilizing solution at the plant. (And I do mean medical-strength: just 3 ounces in a gallon of...
    2 replies | 52 view(s)
  • laserist's Avatar
    Today, 04:14
    laserist replied to a thread CYGN-B in The Lounge
    The "U' shaped tool fits the notches on the nut and the nut screws through the dial onto the potentiometer's bushing:
    182 replies | 11555 view(s)
  • Pangolin's Avatar
    Today, 03:07
    Hey Absolom, thanks for the comments! At the present point in time, we're not selling it as a component. The reason is because when you expand the divergence, you can see the "structure" of the beam. If the beam doesn't start its life out looking perfect, then, well, there could be...
    7 replies | 124 view(s)
  • Greg's Avatar
    Today, 01:25
    Greg replied to a thread CYGN-B in The Lounge
    Hey, that's great you have an original not only collection, but complete set of optics! It would be great if you have time at some point to spread out all the optics, scan glasses, and wheels, and post a photo. The data spec 2 will contain the names of most of them I guess. The motors of course...
    182 replies | 11555 view(s)
  • ronhip's Avatar
    Yesterday, 23:55
    ronhip replied to a thread CYGN-B in The Lounge
    Greg, I can't speak to the assembly language programming in the DOG EPROMS, but that U-shaped spanner wrench (above the allen) is used to tighten the cylindrical nut above it to the dial on the other side of the panel. The allen wrench tightens the knob to the shaft of the pot. I don't remember...
    182 replies | 11555 view(s)
  • Greg's Avatar
    Yesterday, 22:34
    Greg replied to a thread CYGN-B in The Lounge
    $1CD0: 00000000000101010202020303040404050506070808090A0B0C0D0E0F1011121314151617191A1B1C1E1F202223252627292A2C2D2F3032333537383A3B3D3E404143454648494B4C4E4F5152545557585A5B5D5E5F61626365666768696B6C6D6E6F7071727374757576777879797A7A7B7C7C7C7D7D7E7E7E7E7F7F7F7F7F That's the rough sine table. As...
    182 replies | 11555 view(s)
  • VDX's Avatar
    Yesterday, 22:08
    ... but then it's a complete different scanner-setup - not comparable with the laserprinter ones >:) This wouldn't be vector- but raster-scanning -- think about the old-style "laser-TV's" with a tilted polygon-scanner with the polygon for the Y-line and tilting to get the X position ... ...
    5 replies | 269 view(s)
  • absolom7691's Avatar
    Yesterday, 16:05
    With more mirror facets, wouldn't that cut down the raster scan angle, making it more viable for xy?
    5 replies | 269 view(s)
  • absolom7691's Avatar
    Yesterday, 15:45
    Good to see you posting again, Bill! You have been too absent from the forum! What kind of prices are we looking at for the beam brush? There aren't any listed on the Pangolin website. Also, do we have to have a Kvant projector to use it?
    7 replies | 124 view(s)
  • VDX's Avatar
    Yesterday, 14:33
    ... I've used them for UV-exposing UV-sensitive films or PCB's - stepper for X, the scanner for Y. For lasershows it's not so optimal because of the long distance to the second mirror, if intended for XY-scanning ... Viktor
    5 replies | 269 view(s)
  • Pangolin's Avatar
    Yesterday, 14:11
    You can find plenty of these for sale on eBay. I wound up purchasing some while I was doing research for my book. I don't think many people have explored how these can be used for laser light shows, so this is fertile ground for sure! Bill
    5 replies | 269 view(s)
  • Pangolin's Avatar
    Yesterday, 14:09
    Yes this thread is full of humor ;-) A DSLR was used, with fixed focus. I'm glad you all liked the show. I did too! I didn't see Mike publicizing it much, so I decided to help him publicize it but in a funny way. Bill
    7 replies | 124 view(s)
  • Lazerjock's Avatar
    Yesterday, 13:39
    My bad. Lol *DZ
    7 replies | 124 view(s)
  • absolom7691's Avatar
    Yesterday, 13:32
    Actually, I was, too which is why I acknowledged the beam brush later! However, I was being serious about using a dslr for lasers. For lumia and graphics with scan glass, phones have a horrible time trying capture color as well as focus and exposure levels!
    7 replies | 124 view(s)
  • Lazerjock's Avatar
    Yesterday, 12:02
    Bill was kidding. This is an amazing example of beam brush with an abstract show. Very impressive!
    7 replies | 124 view(s)
  • VDX's Avatar
    Yesterday, 11:31
    ... my galvoheads have the same interface and are driven by a BeagleBoneBlack with capes supporting/driving only 5V at CMOS level, so GND to 5V signals seems to be sufficient ... Viktor
    3 replies | 104 view(s)
  • HexaCube's Avatar
    Yesterday, 10:06
    Okay, thanks for confirming my thoughts! One more thing - the data interface, I assume those are meant to be differential pairs? Is there any way to figure out the required voltage for them? I asked the manufacturer, but i'm not sure wether or not they are willing to help out with that sort of...
    3 replies | 104 view(s)
  • dkumpula's Avatar
    Yesterday, 09:08
    Hey Chris! Ah, no I hadn't seen this one previously. I really enjoyed the 'fall' off the dam. Obviously, manual flight was the only option for that terrain and certainly highlights the potential issues we discussed. As long as your bird was the only thing significantly at risk, I'd still...
    54 replies | 4767 view(s)
  • rns0504's Avatar
    Yesterday, 08:12
    Thanks Adam The one on my desk smells something awful, like the bottle of cheap tequila me and Vale had at SELEM about 4 years ago, but at least it's not from Mexico....
    2 replies | 52 view(s)
  • buffo's Avatar
    Yesterday, 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:...
    2 replies | 52 view(s)
  • jdavis7765's Avatar
    Yesterday, 06:58
    jdavis7765 replied to a thread Galvo/Amp Upgrade in Modifications
    I think I am progressing along here, not too sure. For the laser shut off key, can I route the gounds from the ILDA RGB negatives through this to work it properly or does it need to be controlled by a relay of sorts?
    9 replies | 151 view(s)
  • Lazerjock's Avatar
    Yesterday, 03:14
    David I love the video, especially the single kyaker. How much did you have to pay the actor to get such a great shot? I though you may have seen my video when you said this. https://www.youtube.com/watch?v=13JMbNNgDLc&feature=youtu.be
    54 replies | 4767 view(s)
  • absolom7691's Avatar
    Yesterday, 00:28
    That's why I use a dslr and switch to manual focus. Phones have the worst time with lasers. Awesome show! I really like the beam brush!
    7 replies | 124 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 ;-) https://youtu.be/Z1Cne0R7AGg
    7 replies | 124 view(s)
  • VDX's Avatar
    07-07-2020, 22:42
    VDX replied to a thread 3D Printers - Who has them? in The Lounge
    ... if for detail -- my first FDM setup used a nozzle with 0,8mm bore ... the first DLP-resin printer was capable of 0,01mm in XY and Z :cool: But for "serious" microfabrication (laser-ablating, removing 200nm material per pulse) I've used an excimer laser with sub-micrometer resolution >:) ...
    31 replies | 2201 view(s)
  • absolom7691's Avatar
    07-07-2020, 19:31
    I noticed that, as well. I started a thread a while back comparing greens https://www.photonlexicon.com/forums/showthread.php/20708-Green-lines-are-fascinating. Cameras really do a number on color.
    5 replies | 122 view(s)
  • mixedgas's Avatar
    07-07-2020, 19:09
    If your running single wavelengths through each telescope your looking for "Aspheric" or " Best Form" lenses to go long distances. Otherwise normal spherical is fine. If you can find an old, old, Melles G catalog the pages on Collimator /Telescope design are worth reading. As achromats are well...
    3 replies | 110 view(s)
  • lasingfox's Avatar
    07-07-2020, 18:35
    it really sucks how it looks on camera though... 532nm looks more yellow than 568nm and it makes me sad, haha.
    5 replies | 122 view(s)
  • absolom7691's Avatar
    07-07-2020, 18:26
    I have a Taz 6, a Taz Mini, and a Moai SLA printer. The most complex work I have done on mine is printing the parts for my fogscreen. Sadly, I never use my SLA printer. Too messy and I really don't need that kind of detail. I only got it because I got in on the Kickstarter pretty early and got...
    31 replies | 2201 view(s)
  • absolom7691's Avatar
    07-07-2020, 18:23
    Ahhh. That should have been clear to me when you also mentioned 647nm... ;)
    5 replies | 122 view(s)
More Activity