Premium Members RonBaldwin Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 you said rectify 1 Quote Link to comment Share on other sites More sharing options...
Premium Members Erwin Landau Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 you said rectify Verb Put (something) right; correct: "mistakes made now cannot be rectified later". Purify or refine (a substance), esp. by repeated distillation: "rectified alcohol". Synonyms correct - amend - redress - straighten - emend - mend I think you are to full of #2! Yes I said it! Quote Link to comment Share on other sites More sharing options...
Premium Members Charles Papert Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 For the sake of civility, I suggest we all stop posting attacks and counterattacks on this thread, however justified. Actually, for once I disagree--the pure entertainment value of this thread can't be underestimated. This isn't one of those instances where a humble newbie needs protection; here, the new guy came in to tell everyone else what they do and don't know. He seems perfectly happy to put his head in the lion's mouth and like a bloodthirsty attendee at the Coliseum, I'm just sitting here munching on my wolf nipple chips and otter's noses and enjoying the spectacle. Oh, and pass the rectified wine. 2 Quote Link to comment Share on other sites More sharing options...
Premium Members Victor Lazaro Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 - Let the games begin! Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 31, 2013 Author Report Share Posted March 31, 2013 Shawn- Sure, dynamic balance can apply to things other than Steadicam sleds, but this is a Steadicam forum, and a professional one at that. And our discussions of dynamic balance, or any other subject, are, by our choice, related to Steadicam-type stabilizers, accessories, practice, history, etc., and not to tripods, dollies, cranes, shakycams, rockets, space capsules, and the like. The minimal requirement for a Steadicam-type sled is three displaced and balanced masses supported by a three axis gimbal. The masses increase angular inertia, and the gimbal both isolates the sled from the lift angle and also separates the large lifting force from the resulting, incredibly tiny, aiming forces. If these three masses are big enough, we can add a mechanical arm and a vest to place the lifting mostly on our biggest muscles (leg muscles) and further isolate the 3 mass and gimbal system from our body's lateral and vertical movements. Steadicam is what we are interested in on this forum, and what we want to discuss. Your initial question in regards to the history of dynamic balance in relation to Steadicam was of some interest to some members of this forum, but when then the discussion went elsewhere. Personal attacks by you or of you are unwarranted, but you can't blame us for not being interested in you "invention" - whatever it is. Further, your ignorance of what has gone before, been invented, claims of what Garrett knew and when he knew it (and how you are therefore like him), is annoying to many of us. For instance, many ops used motors to automatically move the stage side to side when shooting with coaxial 35mm film magazines - 4 pounds moving over an inch and a half!That particular trick is in the book, BTW, as is auto-leveling. What started as a gentle hint - that this is a professional forum for Steadicam operators and concerns, seems to have eluded you, and provoked posts with more than a little heat in them. I suggest, as others, have, that the discussion of your inventions belongs elsewhere on the Web. For the sake of civility, I suggest we all stop posting attacks and counterattacks on this thread, however justified. I see. This is a Steadicam forum, and a professional one at that. So home-made designs aren't allowed here? Really? Is dynamic balance is limited to who makes the gear? I always thought physics didn't care, as long as the job gets done. For the record, I wasn't applying dynamic balance to anything else but Steadicam-type stabilizer sleds, namely my own. But a number of people insisted that I need a gimbal to achieve dynamic balance. Since I built rigs in the past that worked without gimbals, I insisted otherwise. Soon came the insults: "Can somebody wake me up when is is over...." "I'd be excited to see the new wheel you literally reinvented. Mine are all still round. That's soooo B.C." "Shawn, who cares?" "Well then show us, until then well you're just a troll" I was supposed to just sit there and take this, right? Look I'm not blaming anybody for not being interested in my invention. I'M being blamed for showing it. I mean it's one thing for people to not be interested in my designs. That’s fine. But it's quite another for them to circle around and take random pot shots at it just for shits and giggles. Your requirements for a Steadicam-type sled is different from mine because you said it requires three displaced and balanced masses supported by a three axis gimbal. I agree with the three displaced and balanced masses part. Just not the gimbal. Wanna know why? Because I couldn't build the F@#*ing thing. So I found another solution that didn't use a gimbal. Twice. And by the way, my solution to the telescoping zoom lens problem was directly related to dynamic balance precisely because it solved the problem in a way that works with dynamic balance. I stayed on topic with that one. Also, I never claimed what Garrett knew or when he knew it, I asked people on this forum. My question was answered by Janice Arthur, Tom Wills, and yourself. I concluded that it was somewhere around the mid 80's. If I'm wrong, please correct me. That's why I asked in the first place. And why does it annoy many of you if I suggest that I'm similar to Garrett Brown in this regard? I'm an inventor. He's an inventor. Can't we all just get along? Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 Holy crap dude you either don't get it, or are Bryo..... Quote Link to comment Share on other sites More sharing options...
Moderators Janice Arthur Posted March 31, 2013 Moderators Report Share Posted March 31, 2013 Shawn I still can't figure out what u invented and why u can't show it? Janice 1 Quote Link to comment Share on other sites More sharing options...
Moderators Alec Jarnagin SOC Posted March 31, 2013 Moderators Report Share Posted March 31, 2013 Shawn, Congratulations. You have indeed achieved the impossible..... Eric and Jerry agree. 7 Quote Link to comment Share on other sites More sharing options...
Premium Members William Demeritt Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 Shawn, Congratulations. You have indeed achieved the impossible..... Eric and Jerry agree. It's basically like The Watchmen: an invading force came along so ridiculous and outrageous that opposing forces joined in unison against the invading threat. Otherwise this thread sucks, except the part where Papert said he was eating nipple. 1 Quote Link to comment Share on other sites More sharing options...
Premium Members RonBaldwin Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 For the sake of civility, I suggest we all stop posting attacks and counterattacks on this thread, however justified. Actually, for once I disagree--the pure entertainment value of this thread can't be underestimated. This isn't one of those instances where a humble newbie needs protection; here, the new guy came in to tell everyone else what they do and don't know. He seems perfectly happy to put his head in the lion's mouth and like a bloodthirsty attendee at the Coliseum, I'm just sitting here munching on my wolf nipple chips and otter's noses and enjoying the spectacle. Oh, and pass the rectified wine. Ah...which messiah to choose!? The Life Of Byro is one of my favs. Quote Link to comment Share on other sites More sharing options...
Evrim KAYA Posted March 31, 2013 Report Share Posted March 31, 2013 (edited) Wow! Just wow! Well I might have understood what “the reinvented wheel design” in dynamic balance is. You are all wrong! We all supposed that he doesn’t know/understand what the dynamic balance concept is but he does. The problem is he doesn’t know what a gimbal is. Or what he ignores is a gimbal is still a gimbal by definition even if it’s only a single axis – pan- gimbal. http://en.wikipedia.org/wiki/Gimbal ; “A gimbal is a pivoted support that allows the rotation of an object about a single axis. A set of three gimbals, one mounted on the other with orthogonal pivot axes, may be used to allow an object mounted on the innermost gimbal to remain independent of the rotation of its support” Go and watch his earlier video titled “my second homemade steadicam”. Starting from 45th second you can clearly see that the contraption he uses has at least a pan axis gimbal thus dynamically balanceable in theory. The other two axes are worked by his wrist and forearm. Surprisingly putting this pan axis gimbal pogocam in dynamic balance might help him when he tilts or rolls with his “invention”, preventing unwanted pan movement as dynamically unbalanced masses would be subject to un-equal downward momentum causing the rig to pan while tilted or rolled. Remember Eric’s method of dynamically balancing the rig? Or the Mickey device? It’s the same principle: a dynamically balanced rig will not rotate on its pan axis while rolled to horizon and an un-dynamically balanced one will. Did a won something? Did i? I feel like I did B) Well, dear sir, If my analysis is correct, what you invented is a pogo cam with a single axis gimbal compensating its inherent shortcomings by making it dynamically balanceable. Ps: We have to analyze the clues given to us in order to make an educated guess about what he did because he clearly doesn’t want to explain it himself for an unknown reason. Ps2: wow again! Edited March 31, 2013 by Evrim KAYA Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted March 31, 2013 Premium Members Report Share Posted March 31, 2013 Guys we should leave Mr. Telescoping, Extruding Zoom Lens guy, to his own devices. He obviously fancies himself some sort of Secret agent man, someone who is an enigma, wrapped in a cypher smothered in secret sauce Well that or a crappy beer chugging north of the border troll (sorry to my Canadian friends but he is one of yours, clean up in aisle canada) Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted April 1, 2013 Author Report Share Posted April 1, 2013 Imagine a hand-held stabilizer similar in almost every respect to the Merlin. For/aft adjustment, side-side adjustment, steel counterweights, etc. Only one thing missing: A tripleaxis gimbal. I managed to figure out how to build everything else, just not the gimbal. So what did I do? Made do with whatever I could figure out at the time. Keep something in mind: The minimal requirement for a Steadicam-type sled is threedisplaced and balanced masses. There's no question about that. But I don't need a gimbal. A pivot works just as well I made one out of a spike and a cone: See what I'm talking about? I know it works, and I've the the footage to prove it. Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted April 1, 2013 Premium Members Report Share Posted April 1, 2013 Imagine a hand-held stabilizer similar in almost every respect to the Merlin. For/aft adjustment, side-side adjustment, steel counterweights, etc. Only one thing missing: A triple axis gimbal. I managed to figure out how to build everything else, just not the gimbal. So what did I do? Made do with whatever I could figure out at the time. Keep something in mind: The minimal requirement for a Steadicam-type sled is three displaced and balanced masses. There's no question about that. But I don't need a gimbal. A pivot works just as well I made one out of a spike and a cone: See what I'm talking about? I know it works, and I've the the footage to prove it. Now tilt straight down or straight up, how about doing a front flip or back flip on the post in shot? ooooppppsssss you can't. back to the drawing board for you. there are rigs out there for ~$250 that have three axis gimbals... Quote Link to comment Share on other sites More sharing options...
Premium Members Alan Rencher Posted April 1, 2013 Premium Members Report Share Posted April 1, 2013 Shawn, its great that you're figuring stuff out. I'm proud of you. I like to figure stuff out, too, and sometimes I'm proud of myself. Want a cookie? Quote Link to comment Share on other sites More sharing options...
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