sjm4306 on An Open Source Game Boy Printer That DoesnвЂ™t Print.Martin on The Longest Ever Flight Was Over 64 Days In A Cessna 172.Jakob on The Humble NE-2 Neon Lamp Has A New Trick.Foldi-One on The Longest Ever Flight Was Over 64 Days In A Cessna 172.Ren on VCF East 2021: Novasaur TTL Computer Sets The Bar.Ren on Fail Of The Week: Alternator Powered Electric Go-Kart DoesnвЂ™t Go.Adam on This Week In Security: Argentina, MysterySnail, And L0phtcrack.SC on Mesmerizing Mechanical Seven-Segment Display.Ren on The Longest Ever Flight Was Over 64 Days In A Cessna 172.Retrotechtacular: This 15th-Century Siege Cannon Might Kill You Instead Of The Target 7 Comments Posted in 3d Printer hacks Tagged clock, earth, earth clock Post navigation We might just have to get building one for our own coffee table at home. Incidentally itвЂ™s not the first Earth clock weвЂ™ve seen, either. The clock looks great, and a lot of that is down to вЂ™s careful work painting the Earth to match the real thing based on GoogleвЂ™s satellite maps. The gear ratio isnвЂ™t perfect - calculates its drift to be 20 hours over a year -but itвЂ™s close enough for the clockвЂ™s given purpose of being a cool thing. ThereвЂ™s a three-stage planetary gear reduction which turns a date wheel connected to the black shroud so that the clock remains accurate throughout the year. The Earth is rotated within a black shroud such that the current portion of the Earth seeing sunlight is the visible section on the clock, while the rest is hidden from view. The build consists of an Arduino Nano driving a stepper motor, which turns a 3D printed model of the Earth through 360 degrees each day. This 3D printed Earth clock built by promises to do just that. However, few can give us an intuitive sense of how far away we are from the enveloping cloak of night. Plenty of clocks around us are useful for telling us the precise hour, minute, and second of the day.

Shadow digital clock 3d printed