Shawn Sutherland Posted March 29, 2013 Author Report Share Posted March 29, 2013 That shot was made with a home-made rig I built in 1989. My first prototype was designed in 1985, and I too wasn't aware of Dynamic Balance. But from what I've read so far in this thread, neither was Garrett Brown until some time in the mid 80's. That's a relief. Now I don't feel so stupid anymore. Speaking of skinned cats, I was reading about a cat that killed a police dog. Got stuck in his throat. No, really. I want to show you something I shot a long time ago: http://www.youtube.com/watch?v=AwH3rxxEHh0 See if you can guess how I did it. (it'll be fun) What does that shot have to do with Dynamic balance? Pretty funny thread with some VERY funny replies.... Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 29, 2013 Author Report Share Posted March 29, 2013 I want to show you something I shot a long time ago: http://www.youtube.com/watch?v=AwH3rxxEHh0 See if you can guess how I did it. (it'll be fun) What does that shot have to do with Dynamic balance? Pretty funny thread with some VERY funny replies.... That shot was made with a home-made rig I built in 1989. My first prototype was designed in 1985, and I too wasn't aware of Dynamic Balance. But from what I've read so far in this thread, neither was Garrett Brown until some time in the mid 80's. That's a relief. Now I don't feel so stupid anymore. Speaking of skinned cats, I was reading about a cat that killed a police dog. Got stuck in his throat. No, really. Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 29, 2013 Author Report Share Posted March 29, 2013 I want to show you something I shot a long time ago: http://www.youtube.com/watch?v=AwH3rxxEHh0 See if you can guess how I did it. (it'll be fun) What does that shot have to do with Dynamic balance? Pretty funny thread with some VERY funny replies.... I was wondering too. The beginning of the thread was instructive, then... anyway, we can see you in the mirrors, looks like you used something like this: To stay on the subject, this above rig cannot be dynamic balanced either... Nope. I designed a completely different system. The one nice thing about the mirror shots is they at least prove I wasn't rolling the camera on a dolly. You can clearly see I was walking. So the relevance to this thread is that I too had a stabilizer prototype that would've benefited greatly from the use of dynamic balance. If I only knew then what I know now.... Quote Link to comment Share on other sites More sharing options...
Evrim KAYA Posted March 29, 2013 Report Share Posted March 29, 2013 Hello Shawn, A pretty good result for a homebuilt pogocam-like stabilizer. But Eric is right. The video is irrelevant as dynamic balance comes into play only when you spin the sled on its pan axis fairly fast. I might be wrong but, the reflection on the mirror suggests a homebuilt stabilizer without a gimbal so pretty hard to spin on its axis anyhow. Even if you did have a gimbal, the images you made with your rig in this video don’t have any fast pan movement necessitating a dynamically balanced rig. Thanks for sharing anyway. I also built several versions of this kind of contraption when I was in high school and college. The video took me back to those days. Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 29, 2013 Author Report Share Posted March 29, 2013 I know what you mean.Not much about dynamic balance.Mostly, it's about my early design and what I was able do with it.Your also right about it having no gimbal.But if I knew about dynamic balance way back then, I would've found my way around a gimbal pretty quick.Here's a clip from my second home-made design:https://www.youtube.com/watch?v=G2Bet61tvBUThen I took it on a skateboard:https://www.youtube.com/watch?v=e-tMDbN46to Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 30, 2013 Author Report Share Posted March 30, 2013 Now for my latest work:Here's something I did using a (you guessed it) "Home-made) Steadicam dolly:https://www.youtube.com/watch?v=4CYSeGC1UoU Quote Link to comment Share on other sites More sharing options...
Moderators Alec Jarnagin SOC Posted March 30, 2013 Moderators Report Share Posted March 30, 2013 Shawn, careful buddy. I know you're just excited about all things Steadi but there are forums out there for home built stabilizers. This is a forum for Proffesional operators and this tread (that you started) is about the history of Dynamic balance. Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted March 30, 2013 Premium Members Report Share Posted March 30, 2013 Shaun, A few things, First take Alec's advice, your videos have NOTHING to do with Dynamic Balance, Dynamic Balance requires a gimbal. You're creations lack that. also your crations and their accompanying videos are more suited to the Homebuilt stabilizer forum Shawn Sutherland, on 29 Mar 2013 - 15:02, said: So the relevance to this thread is that I too had a stabilizer prototype that would've benefited greatly from the use of dynamic balance. If I only knew then what I know now.... Unless you used a gimbal you couldn't have benefited from Dynamic Balance Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted March 30, 2013 Premium Members Report Share Posted March 30, 2013 Opps Move along nothing to see here Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 30, 2013 Author Report Share Posted March 30, 2013 Shaun, A few things, First take Alec's advice, your videos have NOTHING to do with Dynamic Balance, Dynamic Balance requires a gimbal. You're creations lack that. also your crations and their accompanying videos are more suited to the Homebuilt stabilizer forum Shawn Sutherland, on 29 Mar 2013 - 15:02, said: So the relevance to this thread is that I too had a stabilizer prototype that would've benefited greatly from the use of dynamic balance. If I only knew then what I know now.... Unless you used a gimbal you couldn't have benefited from Dynamic Balance You're quite right. This is not the forum for home built stabilizers, and my videos have nothing to do with Dynamic Balance. I get it. I only put them up to prove that I built and designed my own rig. But trust me on this one: I wouldn't have needed a gimbal to achieve dynamic balance with my design. I know that for a fact. When I built my first prototype, I never even saw a Steadicam in real life. Except for the occasional photograph or two, I had no idea how they actually worked. I approached this design problem from an inventor's perspective, and literally re-invented the wheel. I still do. Quote Link to comment Share on other sites More sharing options...
Premium Members Jens Piotrowski SOC Posted March 30, 2013 Premium Members Report Share Posted March 30, 2013 Can somebody wake me up when is is over.... A lot of times in engineering a prototype is developed and only years later we fully understand how it works, see airplanes vs birds, aerodynamics, nothing unusual here... Quote Link to comment Share on other sites More sharing options...
Evrim KAYA Posted March 30, 2013 Report Share Posted March 30, 2013 Shawn you started a very interesting topic and engaged very knowledgeable veteran designers / operators in it. Good for you. Good for all of us who love to hear about steadicam history. But, These people tell you that, without a gimbal there is no point/no way in dynamically balancing a stabilizer. By insisting, I feel that you are betraying your own topic. Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 30, 2013 Author Report Share Posted March 30, 2013 Shawn you started a very interesting topic and engaged very knowledgeable veteran designers / operators in it. Good for you. Good for all of us who love to hear about steadicam history. But, These people tell you that, without a gimbal there is no point/no way in dynamically balancing a stabilizer. By insisting, I feel that you are betraying your own topic. No..... You just don't know how I designed my rig. If you saw it working, you would immediately know why I don't need a gimbal to achieve dynamic balance. Quote Link to comment Share on other sites More sharing options...
Shawn Sutherland Posted March 30, 2013 Author Report Share Posted March 30, 2013 Can somebody wake me up when is is over.... A lot of times in engineering a prototype is developed and only years later we fully understand how it works, see airplanes vs birds, aerodynamics, nothing unusual here... Got a better idea: How 'bout I just wake you up while it's not over? Telescoping Zoom lenses, and their inherit effect on dynamic balance. How would you solve this? Quote Link to comment Share on other sites More sharing options...
Premium Members Afton Grant Posted March 30, 2013 Premium Members Report Share Posted March 30, 2013 Can somebody wake me up when is is over.... A lot of times in engineering a prototype is developed and only years later we fully understand how it works, see airplanes vs birds, aerodynamics, nothing unusual here... Got a better idea: How 'bout I just wake you up while it's not over? Telescoping Zoom lenses, and their inherit effect on dynamic balance. How would you solve this? Don't know I've ever used a zoom that telescopes. That problem of shifting external masses was solved long before Steadicam came along because it creates problems for all sorts of filmmaking gear. I'd be excited to see the new wheel you literally reinvented. Mine are all still round. That's soooo B.C. Quote Link to comment Share on other sites More sharing options...
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