https://www.outerboundstudio.com/journal daily 0.75 2025-08-29 https://www.outerboundstudio.com/journal/error-math monthly 0.5 2025-08-29 https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/1078050a-450b-45ea-b642-c2af5dd49ea7/Error+table.PNG Design Journal - Journal Entry #5: Error Math! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/0ee17d4c-b31b-4ce2-9f49-1eb5bb25d23d/error+pie+chart.png Design Journal - Journal Entry #5: Error Math! - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.outerboundstudio.com/journal/force-math monthly 0.5 2025-08-29 https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/1260e91b-ef61-47e4-b435-51fd958c106f/worstcasepitchrollmedium.gif Design Journal - Journal Entry #4: Force Math! - Worst case weight placement Worst case weight placement https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/e678c065-61c6-4609-86fd-1f3726dba644/triangle+carryon.PNG Design Journal - Journal Entry #4: Force Math! - On the other side is a perfect triangle, which would give the least distance from the center to the feet. The center would be (13*(1/3)) =4.33” from the edge of each foot. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/6d1b65a1-50a2-46de-a029-73d9f7fa4778/hexagon+carryon.PNG Design Journal - Journal Entry #4: Force Math! - On one side of the spectrum is a hexagonal shaped platform, which would give the most distance from the center to the feet. This distance is (13”)/2 =6.5”. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/9406699b-fa1a-4f71-9c61-c81b6707cc98/semihex+carryon.PNG Design Journal - Journal Entry #4: Force Math! - I’m not a fan of either of these extreme shapes for this project, so I’ll go with a mid-range number of 5.5” for the center-to-foot distance. This gives the design a nice semi-hexagonal shape. https://www.outerboundstudio.com/journal/mechanical-design monthly 0.5 2025-08-07 https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/48ed7942-ce9d-4388-bce0-f321cf4dc132/Yaw+Axis.gif Design Journal - Journal Entry #3: Mechanical Design Overview - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/9c56ae75-37a5-432b-94b5-31ae57921323/Equatorial+Platform+Diagram.jpg Design Journal - Journal Entry #3: Mechanical Design Overview - Here’s an example of a traditional equatorial platform, with the axis of rotation overlayed. The rear of the system, shown on the right side of the image, is a pivot point that the top platform rotates around. Source: Reiner Vogel, www.reinervogel.net https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/538cd218-e335-406e-8221-32d13940693d/Equatorial+platform.gif Design Journal - Journal Entry #3: Mechanical Design Overview - Here’s another example, showing a traditional equatorial platform in motion. The key features are the curved triangular silver parts on the left and right sides of the moving top section (which define the conical curve the platform follows) and the single motor under the right curved piece. Source : equatorialplatforms.com https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/e4e79392-e392-4222-a157-6379ef42ea72/yaw+pitch+roll.png Design Journal - Journal Entry #3: Mechanical Design Overview - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/22572e44-06c6-4cf8-95bd-460e14e3de74/Pitch+and+Roll.gif Design Journal - Journal Entry #3: Mechanical Design Overview - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/7d1eeff7-f27d-49af-b835-efce0e59163b/stepper+motor+example.jpg Design Journal - Journal Entry #3: Mechanical Design Overview - Stepper motors are very accurate at low speeds, powerful enough to meet our strength goals, and come in a variety of widely-available sizes. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/748b4c28-3616-4673-80b1-d34b9b9ac41a/Wedge+3D+Print.gif Design Journal - Journal Entry #3: Mechanical Design Overview - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/5d62a921-2bda-4d90-b059-84282237c568/leadscrew+on+stepper+motor.jpg Design Journal - Journal Entry #3: Mechanical Design Overview - Stepper motors and lead screws are the standard way to design high-precision movement systems; it’s common to order stepper motors with built-in lead screws like this. https://www.outerboundstudio.com/journal/sensors monthly 0.5 2025-07-29 https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/a5a990e6-6b0d-4ab6-9003-482e263d54a3/Sensors+highlighted.PNG Design Journal - Journal Entry #2: Choosing Sensors - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/4e5158a5-a159-49f8-a97e-03329c52a88c/General+error+stackup.png Design Journal - Journal Entry #2: Choosing Sensors - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/4ac9b156-dbfc-47e6-9bd5-99f835b95564/star+trails.jpg Design Journal - Journal Entry #2: Choosing Sensors - Notice how each of the stars appear as a small line instead of a point, and the entire image is somewhat blurry. This is an example of star trailing. Image source: Jerry Lodriguss, “Diagnosing Trailed Stars” www.astropix.com/html/astrophotography/diagnosing_trailed_stars.html https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/1753727507315-QCXF4SJPTJL293LHKUSW/Journal+2+total+error+chart.png Design Journal - Journal Entry #2: Choosing Sensors https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/1753727507497-DKHVITQ4EUR82M2MAYZ1/Journal+2+pie+chart.png Design Journal - Journal Entry #2: Choosing Sensors https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/6628249f-5616-42e7-afc6-42326933114f/Tilt+error+stackup.png Design Journal - Journal Entry #2: Choosing Sensors - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/035deac4-d1d2-4b64-b8fc-37e82819cea8/Compass+Error+Stackup.png Design Journal - Journal Entry #2: Choosing Sensors - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.outerboundstudio.com/journal/idea monthly 0.5 2025-08-07 https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/8c9aa91f-a2c5-4973-913e-c133692217dc/Equatorial+platform.gif Design Journal - Journal Entry #1: The Idea - An example of a traditional equatorial platform. A telescope would sit on top of this to gain sky-tracking capability powered by the black motor in the bottom right. Image source: equatorialplatforms.com https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/62f315f7-b048-48f1-9906-af1962ef7f93/inputs+outputs+image.png Design Journal - Journal Entry #1: The Idea - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/67e1822b6ce5cb51c23a3452/f3ce34b2-ab6c-4bc4-924c-5bd1cacab20f/yaw+pitch+roll.png Design Journal - Journal Entry #1: The Idea https://www.outerboundstudio.com/product daily 1.0 2025-07-28 https://www.outerboundstudio.com/product/project-four-dk24y monthly 0.5 2025-04-08 https://www.outerboundstudio.com/product/project-one-3as9k monthly 0.5 2025-04-08 https://www.outerboundstudio.com/product/project-three-xb2yy monthly 0.5 2025-04-08 https://www.outerboundstudio.com/product/project-two-mngp6 monthly 0.5 2025-07-28