We’ve featured quite a few camera gimbals and steady cams here, but this one stands out. For one, [Daniel Rhyoo] was in his sophomore year when he built it. His 2-axis camera gimbal uses brushless DC motors, and is made out of carbon fiber.
[Daniel] machined the carbon fiber parts on a CNC desktop mill and some hand tools. And he also had to teach himself Solid Works to design it. In his slick DIY guide, he starts off by listing the parts and where to source them from, along with the tools needed. Most gimbals use servos for axis movements, which limits the range and do not provide very smooth motion. Brushless motors overcome these limitations allowing a nice, smooth moving gimbal to be built with a wide range of movement. When [Aleksey Moskalenko] introduced the AlexMos brushless motor controller, [Daniel] ordered it out, and then waited until he could get his hands on the right kind of motors. CAD files for all of the machined parts are available for download (.zip file).
He then goes on to blog his build progress, with ample photos to describe the machining and assembly. He does a couple of nice design choices along the way – like using press-nuts to make assembly and dis-assembly easy, and dismantling one of the motors and replacing its shaft with a custom, longer one instead of using a coupler to extend it. At the end, the result is not only a nice looking, light weight rig, but one that works very well thanks to the motors and controller that he used. Check out the video below to see it in action.
We’ve all prematurely stopped watching some Youtube video because of shaky camera work that makes the video unwatchable. There is a solution available for this problem, it’s a device called a camera stabilizer and it is designed to compensate for jerky camera movement. There are several types available for purchase but they can get fairly expensive. Even the cheaper ones at a few hundred dollars are not economical for hobbyists. [John] set out to make his own camera stabilizer using some unorthodox parts.
[John’s] chose a gimble style design that effectively lowers the camera’s center of gravity down close to the camera persons hand. The handle of the device must also be mounted in a manor to prevent angular and rotation movement of the supporting hand from transferring to the camera.
The handle is from a cement trowel, on top of which is a ball bearing mounted to a threaded rod. A PVC fitting was heated to soften it and the bushing pressed in. This bearing is responsible for allowing the rotational freedom between the handle and the camera. To decouple any angular movements, two hinges were attached to the PVC fitting. The hinges are perpendicular to each other, one allows forward-back tilting while the other allows left-right tilting. The upper hinge is attached to a piece of poplar wood that also serves as a base for the camera.
At this point, if you were to try to hold this contraption with the camera installed, it would immediately tip over due to gravity. To prevent this, the center of gravity of the moving parts (including the camera) must be lowered. [John] did this by using some aluminum tubing to support wood weights that reside lower than the pivot points created by the hinges.
This has been circulating around the net for a bit. For those that haven’t seen it, let me just give you a quick rundown of what is happening. This guy strapped a camera to a chicken’s head. No really, that’s it. There’s some interesting science behind it though. He’s taking advantage of the Vestibulo-Ocular Reflex in the chicken. It is basically the reflex that we use to keep our eyes firmly focused on something while our head is moving. In a chicken however, they move their entire head. This means that he can strap a camera to the chicken’s head and have an instant steadicam. At least that is the theory. As you can see in the video after the break, the harder part is getting the chicken to look at what you want it to look at. We also found a conversation about it with the creator,[MrPennywhistle] in some reddit comments.
No, the picture above is not a store made steadicam. Rather, a CNC machined one by [Matt]. Interestingly, unlike most steadicams we’ve seen before the gimbal is not the main focus of the design though an aluminum machined gimbal would make us drool. The central idea is allowing for X and Y axis adjustment to get oddly weighted bulky camera’s exact center of gravity. [Matt’s] steadicam is also designed to handle more weight than commercial versions, and (if you already have a CNC) to be much cheaper. There’s no video, but from the skill of craftsmanship we can safely assume it’s as good and level as some of the best.
It’s been a while since we’ve seen a steadicam, and to quench our thirst is this iPhone 4 steadicam. The system does use the typical 3 axis PVC gimbal and heavy weight setup that we’ve seen before, but (why has it taken so long to get this implemented?) the addition of a hand grip means you no longer get blistered fingers. The tutorial recommends the use of an expensive cup holder mounting system, but we think making your own epoxy one might save another dime and allow a wider range of cameras or phones.
The whole process is also wrapped up in a quick and simple how-to video (after the jump alongside an in action video), which goes to show even though a hack may have been done several times before, presentation can make a big difference and impact.
[YB2Normal] has updated his steadicam 5 times! For those that remember the original, it allowed indie film makers to create smooth and steady video. Version 2 implemented a new gimbal based on a throttle linkage in cars. Version 3 allowed the user to easily adjust angles and weights to prevent accidentally knocking the assembly. Version 4 seems to have disappeared. And finally, version 5 updates the gimbal again using a Traxxas U-joint and redistributes the weight. What should come next? We think a handle, holding onto a threaded bolt can’t be good for your hands.
Professional cameramen use steadicams to make their shots look smooth and clean. However, their prices are generally way too high for an indie’s budget. Previous attempts have tried adding a counterweight and moving the camera away from the hands. [YB2Normal] took a different method and used a bob and gimbal to hold the camera upright. The gimbal is free to rotate along 3 axes, so the camera can stay in place. The whole thing cost less than $15. The first video he made with he mount is after the break.