3D printing makes more than 1 billion snowflake models for you to choose!
Another year is the Christmas season. In our field of vision, there are more and more kinds of snowflakes, some are the real falling snow in the natural world, and more are the snowflake decoration of the streets. Remember what we learned at school, is there two snowflakes in nature that are exactly the same? Today, with 3D printing , you can create more than one billion different shapes of snowflakes. Do not believe? Professor Laura Taalman from James Madison University can help you do this. Recently, she developed an online application called Snowflake (also known as mathgrrl), which combines "random numbers, mathematical algorithms, computer graphics" and can generate various types according to user settings. A 3D printed snowflake model.
According to Professor Taalman, this application mainly uses a random number seed to generate a 3D printed snowflake model, and the user can control the snowflake style you want through a series of sliders, and set the snowflake you want 3D printing. size of.
So how is it used? It's actually very simple, you just need to open the app's page on the thingiverse. Select your seed number and various style settings above, and the generated snowflake effect will be displayed in real time on the page. If you find your own satisfactory pattern, click “Create Thingâ€. You have to wait a few minutes for the Snow Magic to happen. Then reload your own list of things on the thingiverse, a newly generated 3D printed snowflake model is quietly waiting for your download and printing.
As a developer, Professor Taalman hopes that you can take a photo of these 3D printed snowflake models and want to make sure your photos are posted, so that she knows that a billionth of a snowflake shape has been printed in 3D. . Although this idea is a bit less practical, but... well, if you are the developer of the Snowflake machine, it is a reasonable requirement to see all the snowflakes it has made!
Perhaps, you would like to know what works behind this "snow machine". According to Taalman, the app uses an algorithm to mimic the way snowflakes grow in real life. The shape of the snowflake is affected by the temperature and humidity of the air. When the cold water droplets in the air freeze on the dust particles, snowflakes form. The crystallization of water usually begins with a fine hexagonal crystal, and as the crystallization progresses, new crystals are formed at the corners of the crystal. In 1951, scientists at the International Cyrospheric Science Association (IACS) developed a classification system that divided snowflakes into ten basic shapes. Taalman also used this classification system when designing the snow machine.
Professor Taalman explained: "To simulate this process, the OpenSCAD code behind the Snowflake machine generates a series of random number sequences based on the random number seed you choose, and gradually grows the snowflake by adding branches and small plates in each step. Design. This sequence of random numbers and the style parameters you choose are like the temperature and humidity of the air facing the snow, which will affect the generation of snowflakes more or less."
The hand crank Standing Desk is to rotate the gear through the hand rocker, and then drive the lifting spindle to rise and fall to achieve the purpose of adjusting the height of the desk and chair
advantage:1. Low price, high cost performance 2. No need to power on, no refueling, good safety 3. Gear work, not easy to cause problems, long service life, low noise
Disadvantages:1. Slow lifting speed 2. The load is not as good as electric
Adjustable Laptop Desk,Adjustable Standing Desk,Hand Crank Standing Desk,Adjustable Sit Stand Desk
Suzhou Uplift Intelligent Technology Co., Ltd , https://www.upliftec.com