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Thread: Laserwave Distributor

  1. #21
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    Quote Originally Posted by planters View Post
    Who are you thinking might be bought out? I get the humor, but are you thinking of Laserwave, distributors in general or me specifically?
    You specifically. Actually, I'm just thinking about what happens so often in electronics. Some new thing starts to take form, and you get a few sellers who know their stuff, all doing interesting things, like making simple designs to do things like collimate multimode diodes, do spatial filtering, or selling RGB diode packs that are well matched for beam specs, and suddenly you have the transition from geekly intrigue to simple DIY hobbyists kits. Now, that's how Maplin got started. In the UK, they focussed on kits. Mail order, mostly (before the net, and forums, even BBS's). Catalogs. And then shops! Awesome, to walk a couple of miles, see all those possibilities, including an actual HeNe tucked into the ceiling tiles somewhere and beaming overhead... And suddenly they get a new manager, all business, strictly business, and from a mix of geek-den-and-library, the whole thing gets colder, bigger, moves to a big new place, calls itself 'Mondo' or some such, like promising the world, but the thing that made it grow is ignored, all but killed off. Right now they are going where Tandy (US's Radio Shack's UK effort) went, and it's a sad sight.

    It doesn't take a seer to know that this is a common course of events! Even in the hands of one sole creator, like in a sci-fi novel series, for example, it happens... Hell of an example, but it explains it pretty well so I'll use it: Greg Bear's Eon. The 'Stone (or the Potato, depending on POV, if you're from the US, or Russian). Irreverent or not the thing is a mystery to all, hung there in near space a day after not being seen by any tech or eye, and the strangeness REALLY kicks off when they discover that the seventh chamber goes on forever! All kinds of future promise are there, and he keeps it up awesomely for two books, but by the third it all blooms outward like a dying rose. Or nova. And the mystery is gone. It's reason to be is gone. A victim of its own success.

    Maybe I should have explained myself at some other time than so late at night it's past morning, but what I'm getting at is that like the future of many things, laser project building is at That Transition, the one that risks taking it out of the originators and enthusiasts, and turning it into mass production. (And that's already happening though the quality is quite the lottery right now..) Some day someone is going to approach you with an offer you may not be able to refuse, and they will promise the Earth to all comers, but not be able to offer what you can and do. And by then it would be too late. BUT, right now you have foresight. If, and how, you may avoid or postpone that passing, may well depend on what you do now.

  2. #22
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    OK, I got you. Yes, Radio Shack, that's a sad story. And your dilemma is true and pretty universal. Despite the fact that this is indeed a business the attraction now is not the profit; it is the relationships. So, we'll see.

  3. #23
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    -edit- oops didn't see page 2 there .. well I'll post this anyway ..

    Quote Originally Posted by planters View Post
    Steve,
    For you, There will need to be a contract signed three times in red ink
    Red ink or blood ? Heh lol..
    Ok, I'll look at the competition's pricing .
    Well, I'm in the boat for the seemingly popular consensus for around 2W 532 oem. And yes as long as P73 diodes, 2W 445 diodes, copper tubes and mounts are out there, and so easy to build and combine, I'll be doing that portion me-selfs..
    Got no need for somebody else to build those for me. I just can't build 532.. I tried .. It's harder that it looks. I know that you can attest to that too planters


    --edit2--
    After reading page 2 here yeah I remember when Radio Shack was a fun place. A real electronics store. Need a 555 timer? just down the street .. No more.. :/
    Last edited by steve-o; 09-28-2013 at 08:25.

  4. #24
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    Hi Eric,

    It's Rick down here in Mass--I met you at MIT in January. I'm ready to build my second RGB rig at the same power level as one of you satellite rigs I saw at MIT. I already have 4 Mits 638 500mW diodes with all the corrective optics--so I'm stating from there in the power category. Most likely going with 1 or 2 9 mm 445--I have the holders and correction optics for those as well. I'm very interested in purchasing a 1-2 watt 532 green that would balance out the other colors, dichros that will couple in 532 and 445, and red and blue true zero order 1/2 wave plates. As for shipping, I'm more than happy to make the trip up to see your place and pick up the parts, especially this time of year.

    Thanks
    Rick

  5. #25
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    Got no need for somebody else to build those for me. I just can't build 532.. I tried .. It's harder that it looks. I know that you can attest to that too planters
    Steve,
    That makes sense. I think the attraction of the red and blue modules is for those that don't want to go down that path and do the research, find the suppliers, accumulate the parts and spend some time adjusting...thinking...adjusting etc. If you have already done this then it's very easy to do this again.

    I will finally be making the video on that project tonight. Wild success, but like the moon landings, a bit of a trip.

    Rick,
    Hi there. Sounds like fun. The first Laserwave I bought was for one of those satellites to replace the underpowered DHOM and balance out the color better. You'll want 2W of green minimum as the reds I use are the G71's and the green they sent me is pretty under-rated and makes 2.6W. I actually think this under-rating is pretty typical based on what badger found with his 2W so this probably will work for you as well.

    Sure you could pick it up. And, this brings up an interesting point. I enjoyed MIT and I will PM Krazer and see if he is game to let this happen again. I could bring the cryo rig as well as the new green. You could bring your new creation. And, maybe with a little more lead time there might be some others who will come?

  6. #26
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    I'd love to make it to hang with ya all sometime. But almost to baby watch time so be a few months for me.

    Planters have you done power measurements with and without spacial filter. Curious of your losses. I think I am at about 20% but a great looking beam.
    leading in trailing technology

  7. #27
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    I am risking the fact that Krazer may have no interest in doing this again, but it would be in January. That is when the Institute has a winter month off and the the place is semi-abandoned.

    Re power measurements. No, I have not, but be careful. The wings contain some power of course and personally no matter the loss these are bad. If you include them in divergence measurements (I believe no one probably does) then the divergence is probably close to 10 mrad. If your power meter has a large enough active region and you are close enough to the laser then they will be included in the gross power reading. The beams from even multi-diode arrays should have a roughly bell shaped intensity curve at focus and so if you are precise enough you can probably cut into that central spot a bit, but with a rapidly increasing power loss and with a more linear improvement in beam quality.

  8. #28
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    Thanks I was just asking as I think you quoted in your pj tear down video like 3.8 w of red off the scanners. Just seemed high with the filter in place maybe it was when removed just caught my attention as I had just metered the losses.

    Thanks for the great info.


    Quote Originally Posted by planters View Post
    I am risking the fact that Krazer may have no interest in doing this again, but it would be in January. That is when the Institute has a winter month off and the the place is semi-abandoned.

    Re power measurements. No, I have not, but be careful. The wings contain some power of course and personally no matter the loss these are bad. If you include them in divergence measurements (I believe no one probably does) then the divergence is probably close to 10 mrad. If your power meter has a large enough active region and you are close enough to the laser then they will be included in the gross power reading. The beams from even multi-diode arrays should have a roughly bell shaped intensity curve at focus and so if you are precise enough you can probably cut into that central spot a bit, but with a rapidly increasing power loss and with a more linear improvement in beam quality.
    leading in trailing technology

  9. #29
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    Eric,
    Sounds like a plan. Lets go with the 2W green for me. The sooner the better as I want to make this happen before Christmas--maybe having it all together by late November if possible. I would love to attend the MIT get-together again in a space more suitable (although it was fun hunting for a room!).
    Rick

  10. #30
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    The reds in my projector are cooled to sub-zero and so they each put out a little over 1 W. The 3.8 W is post filter but pre-scanner.

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