Geared Lazy Susan, Robotic Arm Project
myminifactory
I included the Fusion 360 project with this update. This is a major redesign of the robotic arm's rotating base, which had significant side-to-side slop in its previous design. I've added a bearing swashplate to completely solve that issue. To use bearings for this project, try using BBs from a BB gun. Airsoft BBs might also work, but I haven't tried them personally. If you do try them, please leave a comment so others can benefit from your experience. The Gearbox(s) for the rotating base are different designs, and both are compatible with this update. For more information, check out these links: 43.33 : 1 - http://www.thingiverse.com/thing:210121866, and 46 : 1 - http://www.thingiverse.com/thing:2277105. For the joint itself, you'll need Ring Gears #1 & #2 from the gearbox. Use the one-piece sun gear and make sure to print out the 3-module long planet gears, not the 4-module ones. To learn more about this project, check out these links: http://www.thingiverse.com/thing:2153317 (EZ Print Arm) http://www.thingiverse.com/thing:2105057 (Original Robot Arm Design) The third module of the gearbox might seem like it's not being used inside the top cover, but it actually provides critical support for the planet gears at the top end. However, installing the #3 ring gear would add unnecessary drag and make disassembly much harder. To attach this update to your robotic arm, use the EZ Print Design with a custom center ring holder. The bullet-looking spacers will fit into the holes and ensure all parts are properly aligned. This attachment method is extremely rigid and far superior to the original design. I've chosen to design the attachment upside-down for better clarity, which isn't a significant change at all. The main difference is that my labeled parts in the EZ Print Robotic Arm "thing" are now oriented upside-down. If you want to see more cool projects and upgrades like this one, be sure to follow me on Thingiverse and subscribe to my YouTube Channel, Gear Down For What? https://www.youtube.com/c/GearDownForWhat
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