- #Hammer and stain 3d clock software
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The actual length is about 12", but the effective length is determined by the location of the round bob, which can be adjusted up and down on the pendulum. That means that the effective length of the pendulum is 9.78". The electronics adjusts the swing angle to keep timekeeping accurate.įor this clock I used a pendulum period of one second. The Mystery clock is designed to allow the swing angle to be variable and thus is able to compensate for environmental variation.
If we vary the swing angle from about 15 degrees to about 25 degrees, we can adjust the period about 1/2%. The larger the swing angle, the longer the period of the pendulum. The period of a pendulum is primarily determined by its effective length, but the swing angle also plays a role. Is there a way to compensate for environmental variation? This little push keeps the pendulum moving.ĭue to variations in temperature and humidity, the period of a pendulum can also vary slightly, resulting in inaccurate timekeeping. The circuit then passes current into the coil, making it an electromagnet to repel the pendulum. This generates a current in the coil, which is detected by a circuit. A magnet in the pendulum swings past a hidden coil. In an electromagnetic pendulum clock the pendulum both regulates and drives the movement.
In most pendulum clocks the pendulum regulates the timekeeping, but is driven by other means such as a spring or weights. This clock uses an electromagnetic pendulum. 1/2" and 3/4" thick hardwoods - I used oak, maple, hickory, and pine.The intent is that you don't simply replicate my design, but perhaps also design your own clock. The Instructable covers not just the build but also the design. There are also a few STL files for carved parts. There are some small differences in the replicated design, so if you use the DXF files you will see some differences from the photos in this Instructable. I have since replicated the design using LibreCAD and InkScape to produce DXF files.
#Hammer and stain 3d clock software
I use a Carvewright machine, and used Carvewright Designer software to design the clock. A microcontroller drive circuit makes it very accurate.Īll of the wood parts can be made with a CNC machine. Wood gear clocks can be finicky to get and keep running accurately, but this one is quite robust. But you don’t have to tell your guests that – make then guess! I've actually had people believe that this is a perpetual motion machine! The secret is a magnet embedded in the bottom of the pendulum, and an electrical coil hidden in the base. These creations are available under CreativeĬommons Attribution 3.0 United States license.The Mystery Clock is so named because even though the entire clock movement is visible, what keeps it going can be somewhat of a mystery to many. The 25 following 3D models were created by ReallusionĪnd distributed here with their authorization. Of 3D models contained in the 3DModels-BlendSwap-CC-0-1.8.zip The set of Blend Swap models is available as the BlendSwap-CC-0.sh3f and BlendSwap-CC-BY.sh3f libraries The 395 following 3D models were created by the author of Resources.blogscopia and are available under CreativeĬommons Attribution 3.0 Unported license, with the requirement of giving credit only in case a 3D model or a work derived from it is redistributed (see Scopia license). Of 3D models contained in the 3DModels-Contributions-1.8.zip The set of previous models is available as the Contributions.sh3f, LucaPresidente.sh3f and Trees.sh3f libraries Trees were modeled with Arbaro to generate their branches and foliage, then simplified to reduce their size. The creator of each 3D model is indicated when you place the mouse pointer on its image. The 580 following 3D models were created by contributors of Sweet Home 3D project, and are available under To import the 3D models libraries that gather the objects of this page.ģD models created by Sweet Home 3D contributors Unless you need to adjust the orientation and other parameters of a model, it's faster and easier Sweet Home 3D lets you import 3D models one by one, or by group
#Hammer and stain 3d clock license
Feel free to download these models, use them, modify them or even redistribute them, as long as you respect theirįree Art license or Creative Commons Attribution license under which they are available.Ĭlick on the images of the models to display them in 3D within your browser orĬlick on the link under each image to download the matching 3D model file.
These models can be imported in Sweet Home 3D, but also used in other 3D software able to import designed with not too many details for best performances),
#Hammer and stain 3d clock zip
This page proposes 1492 ZIP files containing 3D models.
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