Another example of a gravity-powered marble mache. This mache uses a lever to separate larger, heavier spheres from smaller, lighter spheres. The spheres are poured to a funnel, and land on a lever when they fall out the bottom. The smaller, lighter spheres are not heavy enough to tilt the lever, so they roll to the right.
5. Marble mache "Quatro" - 2010. I copied this idea from Brad Litw's Quadrapult. I hope he doesn't assert any copyrights :)) I watched his video many times, took screen captures and studied the mechanism. Brad's Quadrapult is powered by a motor, so the marbles arrive at the catapult at regular tervals.
Students can use the scorg sheet to evaluate how well a marble sortg mache works. Trackg improvement speed, accuracy, or overall efficiency over a period of design iterations is a great way for students to see, firsthand, the value of testg, prototypg, and modification at the heart of the Engeerg Design Process.
Keep the glass hot enough to work but not too hot. Matag a round shape without any edges is very important marble makg. As you add glass around the core contue to heat and roll the marble to a round shape. Once the marble has been built up to the right size additional patterns can be added to the outside.
The "mache" part of the marble mache volves simple levers, pulleys and wedges. Incorporate these to your design. Pick out the items which will best fit your sketch ideas. Lay them out on the peg board to make sure you have enough room for your complete mache. Attach the items to the peg board from top to bottom.