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Thread: "60,000 PPS max"?

  1. #21
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    I find your attitude to the help offered rather rude. Don't bitch at people trying to help you. If at most restate your question. You say you are in a place not close well go back there and stay there. They are trying to teach you something and you think you know it all. Well you don't. Your question was very completely answered. Bye.

  2. #22
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    TBH it is the nature of forums.
    People come and ask questions, often with an expectation of what they want to hear, and often try to narrow the parameters based on what they know already. I've been there myself, as have many here.
    Whilst it can be frustrating (and god knows I feel frustrated sometimes) sometimes you have to take a step back and think how you might approach things if you only knew half of what you know now.
    The hardest lessons learned are often the ones that cost you in the pocket, and I think that sometimes people forget that advice given is often based on lessons learned the hard way.
    http://www.facebook.com/SubsonicSystems
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    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  3. #23
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    Quote Originally Posted by norty303 View Post
    TBH it is the nature of forums.
    People come and ask questions, often with an expectation of what they want to hear, and often try to narrow the parameters based on what they know already. I've been there myself, as have many here.
    Whilst it can be frustrating (and god knows I feel frustrated sometimes) sometimes you have to take a step back and think how you might approach things if you only knew half of what you know now.
    The hardest lessons learned are often the ones that cost you in the pocket, and I think that sometimes people forget that advice given is often based on lessons learned the hard way.
    That narrowing of focus is the big risk, I think you nailed it with that observation. My antidote was always to widen the view. We live in an age where scientists specialise, and where many other people think they should do the same, but all the great science came from those who generalise. In fact, generalisation was their specialty! Einstein, Newton, many others, all did this. If it works for them it should work for me... For someone like me with a lot more time than money, it makes sense this way anyway. Maybe the real flaw is that our age like never before, pushes people into wanting instant results, and dismissing anything that does not reward them with such.

    To translate that to a directly practical point: Many newcomers to laser displays come from a background of, or interest in, lighting. Hence the big interest and demand in DMX here while only later recognising the far greater power of MIDI. To gauge the reality of scanners a newcomer would do better talking to the sound people, not the lighting people, because resonance, tuning, slew rate, bandwidth, feedback, gain, damping, these all mean plenty to a sound engineer, not so much to a lighting engineer.

    When I do not know a thing, the first question I ask is: What in all I have ever experienced most behaves like the thing that mystifies me? And like my namesake with the interesting bedside manner, I'll take my answer wherever I can get it. It often comes out of some half-buried thought or memory rather than any kind of deduction. And if I narrowed my view to channel only the response I wanted, I'd not get anything new at all. Radio engineers are familiar with a concept of 'sensitivity' and 'selectivity', but they do not apply selectivity until they know the receiver is sensitive enough to a new signal because if they do they end up effectively pushing it down while they focus only on the known signal they already have. Sensitivity might let in a lot of noise but unlike radios, our brains are better at filtering what we want, and the more we let in the less personal baggage gets in the way too. And what fails one time might work in another. When I was a year old I doubt I could easily have told the difference between a scanner and a toy train. But my attention would totally have been active in trying to spot the difference. Just dumbly staring at a thing is better than taking another's word for it. So I'll stop now.

  4. #24
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    I will also add (because I'm whiskey addled...) that I've never really had a conclusive answer from any thread on any forum, however the amalgamation of many threads, including the off topic ones, has lead to a much deeper understanding of how things work and why.
    I also built/rebuilt about 5 projectors before I did the first 'right' one, and some things simply cannot be told (despite people telling me!)

    I think my response on the previous page stemmed from the fact that to me, speed, quality and angle are all intrisically linked (as are bandwidth, SPL and physical size in bass speakers - which is my background) and you simply cannot have all 3 at the same time, you must sacrifice 1 to obtain greater performance in the other 2. To me, this is a 'no brainer' but sometimes you have to think from different perspectives.

    In the case of scanners, there is a 4th parameter - cost. If you dig deep enough, you can get the other 3 (to a point), but you will still be making concessions at some point. Andit is exponential (just like laser modules), you need to pour in ever greater money for ever diminishing gains.
    http://www.facebook.com/SubsonicSystems
    http://www.frikkinlazors.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  5. #25
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    I've always argued that cost is a vital engineering consideration. But also, never the most important. Whatever our budget, the balance should never put cost foremost because that always ignores greater considerations that will give us a better result, AND within budget, too. This is where the UK's politics have gone so badly wrong, bickering and blaming each other over cost and lost money, turning people against each other while neglecting basics like food supply and security against changing climate. But that's as far as I'll go down that rabbit hole.

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