Quadrant (Sexstant predecessor) - Celestial navigation - NO Supports
thingiverse
I've always been fascinated by old navigation techniques, and I'm particularly fond of using a Sextant to determine my position on Earth. This instrument, the Quadrant, is actually the precursor to the Sextant and is extremely useful for calculating altitudes of mountains or distances from specific objects, as well as determining one's position on Earth when used in conjunction with a standard clock. I've uploaded a simple guide on how to use it, along with some examples. To build this instrument, you'll need the following hardware: - 1 x M4 x 25 mm Screw (available at https://www.amazon.com/Stainless-Steel-Phillips-Round-Screws/dp/B012TCNAD0) - 3 x M4 Nuts (available at https://www.amazon.co.uk/Full-Stainless-Steel-Hexagon-Delivery/dp/B00A6G5H0G) - 3 x M4 Washers (available at https://www.amazon.co.uk/Washer-4-3mm-Stainless-Washers-Delivery/dp/B00A6PILR8) - 2 x MF104ZZ Flanged ball bearings (available at https://www.banggood.com/10pcs-MF104ZZ-4x10x4mm-Metal-Shielded-Flange-Ball-Bearings-p-1147094.html) To assemble the Quadrant and see how I built it, check out this video: https://youtu.be/rKAefZo1f6w As always, CAD files are available for download so you can modify my design to fit your needs. If you have a similar-sized flanged ball bearing, here's what you need to do: - Fusion 360: Open the "Stellar_Quadrant_v32.f3d" file, change parameters, and edit the parameters to match the dimensions of your bearing. - If you don't have Fusion 360: Simply leave a comment with the type and dimensions of your flanged ball bearing, and I'll upload an STL file with the necessary modifications as soon as possible.
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