Showing posts with label kinematic. Show all posts
Showing posts with label kinematic. Show all posts

Saturday, September 13, 2008

Desktop #27

So here's my latest desktop. #27. It's 22" high by 18" deep/wide and has two tracks. This desktop has all the usual fun stuff such as; track splitter, 3 loop - loop d' loop, tipping arm, ring spinner, spiral and over 25ft of two rail track. On this desktop I decided to add a finger release. The finger release is a great way to play with your sculpture without having to reach out and place marbles at the top every time. Instead, place all the marbles at the top where they stay until your press the lever to release one, or all. Place the sculpture out of reach, and you could use your toe to release them during commercials. : )

So here's a couple pics, and the video I have uploaded to YouTube.



Thursday, July 31, 2008

Completed sculpture #76

This is my latest project. It stands 5ft high and is 3.5ft wide on each side. A chain lift brings the balls back to the top and releases them into the 4 tracks on this sculpture. This sculpture has several fun elements. First is the Plinko Track Scrambler. 3 of the 4 tracks go into this element and the marbles mix up, taking one of the 3 tracks exiting. The fun part is watching the balls bounce around randomly before dropping off and continuing on the stainless steel paths. The loop d' loop has 7 inversions, and jumps into a basket. See the video of the sculpture here:



One of the paths goes into the Ferris Wheel Lift. The 1-3/8" marble is directed around the outside of a large 12" ring. The ring has tines that catch the marble, and allow the marble to spin the wheel. When the wheel spins there is a smaller ring on the inside that lifts 1" marbles, about 4 inches, onto their own small path. They race out and around before returning to the lift. I have only made two of these elements, this being the second one. I spent a lot of time turning this one over in my head to make sure it was built correctly. I think it came out just right. The most complicated part to making this element was getting the bearing exactly in the center of the large ring. Once that was accomplished, the rest was easier, but no less important. Building slow, is the key to building something like this. Below is a video of the Ferris Wheel Lift.