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  • VDX's Avatar
    Today, 11:46
    VDX replied to a thread Lambda Physics in The Lounge
    ... shouldn't be a problem -- I'm trying to "stack" different materials (or multiple slices of same and/or different materials) not only in homogenous layers, but too in specific patterns and geometries ... the results will give something like "3D-Nano-printing" with various materials and with any...
    7 replies | 75 view(s)
  • LambdaPhysics's Avatar
    Today, 10:59
    LambdaPhysics replied to a thread Lambda Physics in The Lounge
    Could be deposited a model of photoresist on chrome-coated glass plates?
    7 replies | 75 view(s)
  • VDX's Avatar
    Today, 10:13
    VDX replied to a thread Lambda Physics in The Lounge
    ... I'm doing "LIFT" with my fiberlaser or even with a 10W-laserdiode without need for vacuum :cool: Attached some Images with tests for coating thicknes with copper (the raster image, thickness from single nanometers to roghly 50nm) or creating conducting tracks on any sort of surface (paper,...
    7 replies | 75 view(s)
  • LambdaPhysics's Avatar
    Today, 08:48
    LambdaPhysics replied to a thread Lambda Physics in The Lounge
    Very interesting. I had heard something about the process. Now I have researched a bit on the internet. Do you have the equipment needed for manufacturing? I make optical coatings using the Physcal Vapor Deposition (PVD) method. I have a Leybold Heraeus optical coating machine with an electron...
    7 replies | 75 view(s)
  • VDX's Avatar
    Today, 06:29
    VDX replied to a thread Lambda Physics in The Lounge
    ... if you're interested in some of my methodes. then you can read into LIFT (Laser Induced Forward Transfer) -- it's essentially precoating a transparent sheet or glass plate with a material (cuould be LIFT-coated too), then evaporate it with a laser through this sheet/plate and let it "coat" a...
    7 replies | 75 view(s)
  • LambdaPhysics's Avatar
    Today, 05:59
    LambdaPhysics replied to a thread Lambda Physics in The Lounge
    Hi Viktor, I am located in Europe too, but a little further East (Bucharest - Romania)
    7 replies | 75 view(s)
  • VDX's Avatar
    Today, 05:31
    VDX replied to a thread Lambda Physics in The Lounge
    Hi Adrian, ... where are you located? I'm from Germany and actively testing/investigating all sorts of "surface coating" for different applications :cool: Viktor
    7 replies | 75 view(s)
  • MariusTitulescu's Avatar
    Today, 03:43
    How's the project going? Any significant breakthroughs? ____________________ Marius
    32 replies | 64117 view(s)
  • LambdaPhysics's Avatar
    Today, 03:41
    Hi everyone, I’d like to briefly introduce myself. My background is in optical coatings – for many years I worked at an optics institute where I specialized in thin-film deposition for laser and optical components. After the institute was closed, I had the opportunity to acquire part of the...
    7 replies | 75 view(s)
  • bungy's Avatar
    Yesterday, 17:00
    Thank you buffo for the very detailed response! Even though my setup is not legit, I have been taking as many reasonable precautions as I can. I truly do not want to make a dangerous situation for anybody. I have ordered the ClubMAX 3000 from Pangolin (with Saturn scanners!) and they are going...
    5 replies | 20935 view(s)
  • absolom7691's Avatar
    Yesterday, 14:44
    It's been a while since I have posted any build projects. I thought I'd share some of the upgrade work that I have been doing in regards to my fogscreen. Of course, my fogscreen has been my most ambitious build and the one I'm the most proud of. Over the last few Halloweens, I have noticed how...
    0 replies | 165 view(s)
  • absolom7691's Avatar
    Yesterday, 12:00
    absolom7691 replied to a thread Dichro help in Help!
    Thanks for the reply, Adam. I might just go the knife-edging route. The "scan speed" of the transducer driven mirror is slow enough that a slightly off-axis beam wouldn't be noticeable. As for the guts, the halogen and focusing lens have all been removed. There is very little left of the...
    3 replies | 13475 view(s)
  • rodman1369's Avatar
    Yesterday, 05:42
    Yeah! What he said! 😉
    72 replies | 342954 view(s)
  • lasermaster1977's Avatar
    08-27-2025, 14:34
    Hi Adam, thanks for that neat suggestion. I could do the engraving on my CNC machine myself. I'll bet your 12" clock platter looks awesome. Surprisingly these 3.75" dia. platters make descent laser bounce mirrors and did not noticeable deform the beam shape, at least on the tests I did.
    4 replies | 22768 view(s)
  • TheHermit's Avatar
    08-27-2025, 12:55
    Thank you for sharing and debunking my 'be there or be square' theory. I understand that doing the show is a higher priority than recording video. I've scoured YT for my own 10 years' worth of works, only to find one grainy '87 VHS recording of a Carrie stage production dress rehearsal. Such is...
    72 replies | 342954 view(s)
  • buffo's Avatar
    08-27-2025, 11:06
    To clarify Adam's point, the reason the commerce clause applies is because you have to *purchase* the laser projector. That purchase is the commerce that gives the CDRH the teeth to go after the seller's records, and from those records they can find the people who bought from them. You are...
    5 replies | 20935 view(s)
  • buffo's Avatar
    08-27-2025, 10:22
    We've been bad about recording video, I admit it. A few people have put together some videos from past SELEMs, however. Here are some links: https://www.youtube.com/watch?v=VupBooxluBw https://www.youtube.com/watch?v=uSxR2TVxVbU https://www.youtube.com/watch?v=jPJzctwHmLo...
    72 replies | 342954 view(s)
  • buffo's Avatar
    08-27-2025, 10:15
    buffo replied to a thread Dichro help in Help!
    Honestly, Edmunds was going to be my suggestion, but yeah - they're prices have gone up quite a bit post-covid. You might want to do some experimenting with the dichros you already have, though, to see if you can make it work. So long as the cut-off wavelength is far enough from whatever...
    3 replies | 13475 view(s)
  • buffo's Avatar
    08-27-2025, 09:57
    If you still have the platters from that drive, you can make a cool (and very nerdy) clock with one: take it to an engraver and have them etch the standard clock face numbers around the outer edge. Then install a battery-powered clock mechanism on the back (Amazon sells these for less than 10...
    4 replies | 22768 view(s)
  • TheHermit's Avatar
    08-26-2025, 12:18
    Thanks for sharing, Steve.
    4 replies | 26585 view(s)
  • mixedgas's Avatar
    08-26-2025, 10:05
    Helios: Helios Laser DAC – Bitlasers Helios to IDN (open source) OpenIDN network adapter for the Helios DAC – Bitlasers IDN:
    4 replies | 26585 view(s)
  • TheHermit's Avatar
    08-25-2025, 08:28
    Thank you for the wrap up, Adam. It provides great insight into the organizational efforts of you guys to continue pulling it off with every year getting bigger and better. Would love to see some videos, but I get it. Gotta be there to enjoy & contribute to the experience. Nothing about SELEM is...
    72 replies | 342954 view(s)
  • buffo's Avatar
    08-25-2025, 05:21
    Let's try this one more time! (I've tried to reply to this thread twice, but both times the forum swallowed my reply and returned a database error rather than posting. I know Spec has been hard at work trying to harden V-bulletin against the bots hammering the server, but it's a tough job, and...
    72 replies | 342954 view(s)
  • dchammonds's Avatar
    08-20-2025, 08:57
    'suppose you're thinkin' about a plate o' shrimp.' Think again! Perhaps you should invest in a Geiger counter.*nyancat
    1 replies | 1962 view(s)
  • mixedgas's Avatar
    08-20-2025, 07:45
    Walmart shrimp may have been exposed to radioactive material, FDA says Cesium 137... "Shrimp is the fruit of the sea. You can barbecue it, boil it, broil it, bake it, sauté it... there's uh, shrimp kebabs, shrimp creole, shrimp gumbo. Pan fried, deep fried, stir fried. There's pineapple...
    1 replies | 1962 view(s)
  • mixedgas's Avatar
    08-20-2025, 07:25
    Thank You. Steve
    3 replies | 8951 view(s)
  • DZ's Avatar
    08-19-2025, 21:00
    It’s was great seeing everyone at SELEM this year, sorry I could only attend for 2 days but I had a blast! I wanted to share a pic I took of one of the posters the band gave away, signed by the band and the laserists!
    72 replies | 342954 view(s)
  • DZ's Avatar
    08-19-2025, 20:28
    I have a copy of it. I’ll send you a PM.
    3 replies | 8951 view(s)
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