Kinetic Sculpture Progress
My initial mask was mostly functional. I made it out of wire as that was the easiest to construct small components out of, the problem I found was that it was easy to warp and caught easily. The central eye piece worked well and I was able to create a double axis rotation, I figured I can have one servo in on the outside of the frame for one axis and the other inside the actual eye for the other axis.
The second effect I want is a bloom effect similar to an umbrella, This would work by having them pivot on a ring and then a second ring would move up and down to push the arms up and down. This would likely use a cam with an elastic pulling the arm down against it however I'm looking at more efficient ways such using a drive arm or a gear rail. I also have to consider that I likely will need to raise 2 sides of the ring at the same time which will take 2 motors or else the imperfect fit will cause one side to droop as the driver has no leverage.
This here is my 3D model of the mask. I've constructed it using Grasshopper for Rhino 3D, I did so for the laser cutter. It took a lot of time however this way I've designed it so for whatever material is available I can change the extrusion length of the breps and every component on the model should scale proportionate to the set material thickness.
The central eye piece is the same as shown in the video however I still need to add the places for the servo motors to attach. I also need to add the driving ring to the arms, the arms themselves should be functional though I will do a small prototype to check, the wire test had the problem that the arms would buckle since they weren't on a solid joint.
For the laser model I sandwiched the arms into their joints. There's the base ring, the second ring which has a slot for the axle to pivot inside and a third ring which are cut so that they seal the axles inside the slots of the second and to guide the in/out motion of the arms. I intend to stitch a fabric material over the arms so that they move fluidly with another. I also intended to have the arms jointed and multiple drivers but at that point it was just over designing and I'm already being overwhelmed with this design.
The second effect I want is a bloom effect similar to an umbrella, This would work by having them pivot on a ring and then a second ring would move up and down to push the arms up and down. This would likely use a cam with an elastic pulling the arm down against it however I'm looking at more efficient ways such using a drive arm or a gear rail. I also have to consider that I likely will need to raise 2 sides of the ring at the same time which will take 2 motors or else the imperfect fit will cause one side to droop as the driver has no leverage.
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The central eye piece is the same as shown in the video however I still need to add the places for the servo motors to attach. I also need to add the driving ring to the arms, the arms themselves should be functional though I will do a small prototype to check, the wire test had the problem that the arms would buckle since they weren't on a solid joint.
For the laser model I sandwiched the arms into their joints. There's the base ring, the second ring which has a slot for the axle to pivot inside and a third ring which are cut so that they seal the axles inside the slots of the second and to guide the in/out motion of the arms. I intend to stitch a fabric material over the arms so that they move fluidly with another. I also intended to have the arms jointed and multiple drivers but at that point it was just over designing and I'm already being overwhelmed with this design.
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