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Thread: Dual red build (pics)

  1. #71
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    Quote Originally Posted by keeperx View Post
    With a pango system and a nice pre-built RGB, you learn NOTHING.
    Um - Not really sure where you are going with this...

    OK - How about a show of hands... How many people here have Pangolin and a pre-built RGB system? (crickets)

    Yeah, thought so. First, nearly everyone here has built their own projector. Some people have built several. It's one of the defining characteristics of the laser hobbyist crowd in general. So what is your point again? We have *always* advocated hands-on over buying pre-built stuff, assuming that your goal is to learn about the inner workings of the projector (or to save money!).

    Second, lots of people here started out with something *else* before they got Pangolin. (Including me. I went through 4 different packages before I got my LD-2000.) And all we really learned from that was that you can't make a Ferrari out of a Volkswagen. (But I grant you that the Volkswagen *will* get you from point A to point B without walking, at least most of the time.)

    And finally, while it may not have occurred to you yet, there *are* people out there that couldn't care less about the inner workings of a laser projector *or* the technical details of a particular controller. These people are primarily concerned with creating laser art. As such, they may choose to focus on being creative and forgo all the geeky technical stuff.

    Sure, that's not the way you and I approach this hobby, but there are people like this out there, and some of them are *far* more talented that any of us. (At least when it comes to artistic talent.) So for them, a pre-built system with a solid set of software tools to create shows is exactly what they need. They will learn nothing about the technical side, but they aren't interested in that - they just want to be creative.

    Also, there are folks here that love to build things from scratch, yet have never even tried to create their own ILDA artwork, to say nothing of a complete laser show. If that's their choice, so be it. We can't all be artistic masters, now can we?

    The race car driver vs mechanic analogy is apt. There are world-class drivers that know very little about the science behind the forumla-1 cars. Does that make them a poorer driver? No. There are also world-class pit crews that know very little about the driving skills needed to win a race. Does that mean they are bad mechanics? No. And then there are drivers that are also gear-heads, and pit crew chiefs that also practice their driving skills, even if they'll never compete. Does that mean they are better than everyone else? No. But *all* of these people will benefit from having good tools to work with.

    As for the pro-Pangolin comments that you appear to be railing against - well, that's simply an effort to save people money in the long run. If your goal is to be able to have really great laser shows (whether you make them yourself or you watch other people's shows), then Pangolin offers what many believe to be the best performance in the industry.

    If it weren't for the comments of others urging people to take a hard look at Pangolin right at the beginning, many people might end up following a path similar to mine, where you end up buying several different packages over the years, always trying to upgrade to the next level and spending lots of extra money in the process. Did I learn a lot during that process? Not really. Did I waste a lot of time and money, and go through a lot of frustration? Absolutely.

    If I had known how good Pangolin really was at the start, I never would have messed around with the Alphalite *or* Mamba *or* Mamba Black *or* X-29. But when I got started, I didn't have a chance to go to SELEM (it didn't exist back then) and see a Pangolin system with my own eyes. I didn't have a chance to talk to other Pangolin owners (who had been through the same progression) and ask them about the path they had chosen. So I had a hard time justifying the high price. Look through my early posting history and you'll find that I wasn't always pro-Pangolin. I was once ignorant of the benefits Pangolin had to offer.

    Don't get me wrong. I understand that for some people, budget constraints are so tight that they rule out all but the most basic equipment. And I can sympathize with these people, because I was one of them for ~2 decades. My fascination with lasers started when I was 12 years old. I actually got a chance to experiment with my first laser just a few years later, and I was hooked for life. Yet it was another 10 years before I could afford to buy even a simple 1.2 mw HeNe laser. And another 10 years after that before I could afford my first Argon laser.

    So yeah, for people just getting started that are stretching things to the max just to get a source of coherent light, freeware projects like Laserboy, Spaghetti, and Zooferoids are wonderful. Coupled with a sound card DAC, these projects allow people to get into laser shows that would otherwise never be able to afford it.

    But if you are ready to buy some commercial laser show software, then arguably you're beyond this stage. And it's at this point that you can waste a lot of money trying to chase that "optimal" software. Especially when you haven't seen the software in person, it's easy to convince yourself that Pangolin is more than you need - that maybe this other (cheaper) software will be "good enough". I managed to make that mistake 3 times myself.

    That's why these Laser Enthusiast's Meetings are so great. You can see the stuff with your own eyes. Take it for a test drive. Talk to people that use it all the time. Ask questions. Experiment event. Watch demos. And make up your own mind as to what you really need or want.

    Adam

  2. #72
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    wow you really do have the long post down to a science.....

    I will own a pango system.. i just think its important to be well rounded.. the sound card dac has been a great tool of discovery, its cheap, it works, but furthermore it helped me understand allot of things about the way the system works and how galvos work and voltage regulated modulation and so on and so on.

    The driver mechanic relationship is a great one.. but look at it this way.. This forum is mainly for mechanics.

    Drivers drive a car one day a week/month/whatever for a few hours, where as the mechanics build the cars and maintain them and figure out new ways to do things..

    I have always considered myself developer with a minor in design, some people are all design.. The developer has to understand some design, the designer does not have to understand the development. I would venture to say that i know more about graphic design (as in how to accomplish something) then many graphic designers. but they are the artistic ones... im just a mechanic..


    SO if you want to learn all the cool stuff first, for cheap, get a sound card dac and build a system.

    then if you like it, buy a pango.. do not step thru the other systems, buy a pango...
    Quis custodiet ipsos custodies?
    Solid State Builders Group

  3. #73
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    soforene is offline The Troll formerly known as Herbert Von Poople-Futtocks
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    Quote Originally Posted by buffo View Post
    ...there *are* people out there that couldn't care less about the inner workings of a laser projector ..
    Hear hear.
    I've used the mechanics/Driver analogy myself in the past and it applies exactly in my case.

    I don't have the technical wherewithall to build my own projectors but this forum is about all sorts of laser related issues and not just building.
    As such it's a valuable resource to anyone interested in lasers as a hobby/profession and if truth be told, there aren't many (if any) comparable sites.

    I too fell under the lure of Pangolin's spell and am glad that I didn't make the costly mistakes that Buffo (and others before him) have done.
    All thanks to having a forum that covers a multitude of laser related topics that others can learn from

    Good ole PL !!

  4. #74
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    Quote Originally Posted by keeperx View Post
    ....

    With a pango system and a nice pre-built RGB, you learn NOTHING.
    It would be interesting to know how many Pango owners on this forum actually started out with a pre-built RGB!! NOT many, I would be willing to bet!!

    Given the amount of time you've been a member here (less than a year), the "you learn nothing" comment is a pretty egotistical statement to be making to a group of people, hobbiests and pros alike, who have spent a LOT of time and money building and / or modifying their own projectors, and in many cases were working on their projects LONG before you showed up here! Regardless of WHAT controller used, building a first laser projector takes a LOT of work, with a BIG learning curve for just about everyone! The basic principals of galvo operation, analog modulation, optics alignment, etc., are going to be same whether you start out with a modified soundcard DAC, or a QM2000 board - or anything in between.

    And for the record - the Pangolin software does come with a LOT of great shows ready-to play. But it takes a lot of time to really learn the various pieces of software in the LD2000 suite, and being able to create good shows with the suite is quite an accomplishment!

    (And has been said before my many of us Pangolin users - NONE of this is a bash against Laserboy, the soundcard DAC, or any of the other non-commercial laser software or hardware packages. Those are great options for the folks that choose to go that route! At the same time, I doubt that you would find many Pangolin owners who feel any "less rounded" if they didn't start out that way!)

    BTW -
    The pics are looking good!!
    Last edited by Stuka; 01-08-2009 at 18:45.
    RR

    Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
    1979.
    Sweet.....

  5. #75
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    What’s the definition of a Laserist?

    My definition would be someone that creates art work with Lasers, whether it is graphics’ beams or effects; it’s not someone that builds a projector, that’s either a laser enthusiast or a manufacturer.

    So if you own a Kvant system with a pango board and you can create laser art then you are a Laserist!

    It’s funny that when a company produces the best of something everyone that either can’t compete or can’t afford it has to go out and bash it.

    Yet most of these people have never seen it or played with it to understand why the product is so good and cost so much. Or for that matter understand that the product is designed and built mainly for professional use; this professional use is what usually make that person money to either recover the cost of the product in the first place or buy more.

    Don’t get me wrong, for a beginner starting out the sound card option is a cheap, easy and accessible option but no one in their right mind is going to use it in a professional performance, and if they did they would never get their ILDA accreditation.

    James has done some impressive work with the software but at the end of the day you are using a very cheap sound card from eBay, not a specifically designed laser controller with its own microprocessor and DSP (not DAC) controller.

    Would I trust the output from a sound card? Absolutely not! And this is one of the things you pay for with Pangolin

    To be honest, I don’t think you can’t even compare the two, especially when it comes to output. I own Mamba Black and now Pangolin LD2000.net and the output is rock solid on the Pango, Mamba’s output was all over the place and I see the main reason for this is that it’s relying on windows and the USB bus for its computation and output (and I not even going to detail the instability of the Mamba software itself)

    Did I learn anything from having Mamba first before going to Pangolin, No I didn’t. And this is because there is no difference from using a DAC card or a sound card or a QM2000 card, the output from all of these devices is exactly the same, it a modulated voltage.

    The basics for any laser projector are:
    User Interface - - > Software conversion from drawing to data bits - - > from data bits to voltage output - - > from voltage input to mechanical movement = Laser projection.

    Where it counts is in the way each step is performed and for the average user whether it’s an amateur or professional they will never now the inner working of each step.

    Pangolin is the best!

    If you can’t afford it stop bitching about it and deal with it

    Now I’ll step of my soap box
    Last edited by loopee; 01-08-2009 at 20:33.
    RTI Piko RGB 4 Projector
    CT6215 Scanners & CT 671 Amps; CT6210 & Medialas Microamps.
    RGBLaser Systems 6000mW RGB Module - 638nm/445nm/532
    LD2000 Pro + QM2000.net + Beyond
    Etherdream + LSX

    Old Projector Build


  6. #76
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    Quote Originally Posted by loopee View Post

    .....

    Don’t get me wrong, for a beginner starting out the sound card option is a cheap, easy and accessible option but no one in their right mind is going to use it in a professional performance, and if they did they would never get their ILDA accreditation.

    James has done some impressive work with the software but at the end of the day you are using a very cheap sound card from eBay, not a specifically designed laser controller with its own microprocessor and DSP (not DAC) controller.

    Would I trust the output from a sound card? Absolutely not! And this is one of the things you pay for with Pangolin

    The basics for any laser projector are:
    User Interface - - > Software conversion from drawing to data bits - - > from data bits to voltage output - - > from voltage input to mechanical movement = Laser projection.

    Where it counts is in the way each step is performed and for the average user whether it’s an amateur or professional they will never now the inner working of each step.

    Pangolin is the best!

    If you can’t afford it stop bitching about it and deal with it

    Now I’ll step of my soap box
    Oh brother!

    Somebody should do a little historical research.

    Pangolin didn't come out with the FB3 or the QM2000 out of nothing.

    That was what developed over many years, several computing platforms, the assumption of several other laser related ventures, and YES it started out on a DAC! ~ an audio DAC, no less!

    Although I don't really agree with the totally literal translation of KeeperX's comments, I get where he's coming from. After all, I planted the idea in his head!

    I think what he was trying to say is that in order to do anything with LaserBoy, you need to have a pretty good idea of what 3D short integer, color vector space is all about. You need to understand some rather non-intuitive ideas about things like vertices and vectors and the fact that points don't mean anything. The distance between the points is all that matters. LaserBoy has never been designed to dumb down anything about the art or the technology. It was originally designed for me to build up my own understanding.

    You can not just open up a GIU and start going click, click, clickity, click and get anything! Nor can you load up a bunch of pre-made shows and play them like a collection of VCR tapes.

    Quite a good bit of LaserBoy is purely academic and gives the user a chance to visualize 3D laser vector art in a way that it becomes much more understandable. If you really get into LaserBoy, for all that it's worth, you can't help but learn all kinds of new things. And you might not even notice it.

    The perception that there is something non-safe about using a sound card DAC to do a laser show is f$&king nonsense.

    How many years did professionals rely on ADAT tape machines?

    That is nothing more than a much more fragile version of an 8 channel wave file.

    The responsibility for safety lies squarely on the shoulders of the laserist. If something goes wrong it is up to YOU to react to it; not your software or hardware.

    James.
    Last edited by James Lehman; 01-08-2009 at 22:19.

  7. #77
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    Quote Originally Posted by James Lehman View Post
    How many years did professionals rely on ADAT tape machines?
    uhh... i still put my shows onto ADAT for the planetarium that runs them! LOL

    i have a pangolin and i love it, but i built my laserboy board and i need to get one of those usb sound cards, becuase the laserboy can do something my pangolin cant, run off of my laptop

    so im building a little tiny R/G/V projector with everything in one box, just DC & USB

  8. #78
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    Flecom! How are you?

    Let me help you with that!

    You might want to go with 8 channels now that it is available.

    That will also make your laptop a virtual ADAT player!

    James.

  9. #79
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    sorry to chime in on all of this in this manner.

    ...however...

    how come there seams to be this laserboy/soundcard dac war between pango/industry built

    just start a new thread somewhere else..."LB vs Pango" since it seams to be that big of a debate. Seams better than taking this discussion into other threads where it really does not belong

    my 2 cents

  10. #80
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    Talking

    I don't really see it as "LB vs Pango".

    I see it more like "LB vs people who don't know anything about LB" !!!

    It's a perfectly logical step to go from LB to Pango.

    In doing so you will know a lot more than if you had just gone to Pango.

    I think THAT was the real spirit of KeeperX's statement.

    James.
    Last edited by James Lehman; 01-08-2009 at 23:38.

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