Digital Orrery

Digital Orrery

prusaprinters

<h3>Digital Orrery</h3> <p>This is a project to create a digital <a href="https://en.wikipedia.org/wiki/Orrery">orrery</a>, each planet can be addressed and controlled individually.</p> <h3>Parts list</h3> <ul> <li>4x Nema 17 stepper motors, 40mm: https://www.amazon.com/gp/product/B00PNEQI7W</li> <li>An Arduino Uno</li> <li>Arduino CNC shield: https://www.amazon.com/gp/product/B06XJKVLG3</li> <li>All of the 3D printed parts</li> </ul> <h3>Printing</h3> <p>All the parts will need to be rotated because Fusion 360 likes to output STL files in the wrong orientation. I printed all parts at 0.32mm and they work pretty well, so I don't think a finer resolution is required. However, it would probably be wise to sand anything that slides around, mainly the inside and outside of the shafts.</p> <p>Print one of ever part, and 3 of the sun pins.</p> <p>For the collars, drill a hole into them around the middle of the protrusion for whatever wire you are using to hold the planets. The collars should snap firmly onto the shafts, I did not use glue.</p> <h3>Demonstration</h3> <p>Whole device:</p> <p>Close up:</p> <p>Video:</p> <p>More info found <a href="https://github.com/jrddupont/Orrery">here</a></p> Category: Physics & Astronomy

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