4.8/51. The most basic constraints on the design of a penny crusher begin with the process for crushing a penny. The penny is rolled between two wheels...2. I considered three different approaches designing a penny crusher that could produce a significantly larger number of images than the standard c...3. Of the three designs I considered, the index-able die carriage is the only one that allows any pair of die images to be used without the need fo...4. The Load Frame transmits the forces necessary to deform the penny between the die carriages. It is also designed to be adjustable so that the ga...5. When the carriages rotate the need to move exactly one third of a revolution and then lock in place. An indexing mechanism is what creates this...6. Before beginning to fabricate the penny crusher in steel, I made a quick prototype using laminated ply and a laser cutter. I built two die c...7. I began by fabricating both die carriages. The three-lobed carriage plates and the rectangular tie-plates that join them together were cut from...8. The load frame was a simple but time consuming machining process. The bearing block's primary features are the bores for the bearings and the ta...9. The smaller epicyclic gears are stock gears available from manufacturers like Martin or Boston Gear. The larger ones, however, were custom cut o...10. I used a two setup flip-milling process for both parts of the Geneva mechanisms using soft jaws to hold the work after flipping it. The simple...警告✕

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