It breaks down the necessary file size of your photo versus the quality of your print size you intend to print it in. (The 300dpi is what I normally stick with) It always seems to get the image into the exact size I need for STL creation. I personally refer to this to crop my images almost every time. The first link is a good reference on “pixels vs. I have included two excellent links below that give great recommendations on picture re-sizing and cropping to get the best results. I wouldn't recommend picking an image that is 50x50 pixels and expect to print a 8”x8” litho and have anything that resembles a decent image come from it! On the opposite side, there is no need to have a 10 MP image to print a 2”x4” piece. You want to make sure the picture resolution is good enough to obtain the results you are looking for, but you don’t need to have a huge resolution picture for a small piece. ![]() ![]() This is a semi-critical metric to keep in mind when choosing a picture. Through my experience I feel that there are three main things to keep in mind: Not all images are going to come out as good as others. There are few things to consider when you are picking an image to 3D print. I plan on going over the basic considerations of choosing a photo that will give you the best results, sizing an image to prepare it for STL creation, one software example of how to convert the image into an STL, and different ways to light and display the 3D Print. This instructable is designed to give you one path (of many possibilities) to create and 3D print a photo. I made a few mother’s day gift for my friends this year, and this Christmas people are sure to receive some of these from me! Plus, it’s a cool way to highlight 3D printing which is not familiar to everyone. If you’re like me, I like to give unique custom gifts that are a little more personal than the norm. What are these good for? These make wonderful gifts for any occasion. Each pixel in the image undergoes this process and a very unique art piece is created. Darker colors block more light and the opposite relationship stands for lighter pixels. This allows a specific amount of light to shine through. A gray-scale representation of the image is created and then depending on the color it is then converted to a calculated 3D printed height. What is a Lithophane you might ask? Well, a Lithophane is a 3D representation of a photo that can only be seen when illuminated from behind. ![]() 3D printed photos, also known as 3D Printed Lithophanes, are an extremely unique and creative application that is sure to “WOW” most people that come across them. If you are looking for your next 3D Printing Project, you need not look any further.
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