You’ll also need to take the backrest off so it doesn’t impede the scanning. Without any assistance, you can still scan your head and chest perfectly if you have a chair that rotates. Of course, you’ll need someone to do the scanning because you’ll have to stand completely still for the entire scan which should take at least a minute to get a high resolution. If it’s sunny, you might get shadows that will mess with the scan.
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How To 3D Scan Yourselfįor 3D scanning yourself, all the same rules apply, but if you don’t have enough artificial lighting for your whole body, it’s best to take the 3D scan outside on an overcast day. Ring light with iPhone tripod that I use a lot. Try to keep the phone at the same height from the beginning of the rotation and only estimate the height on a new rotation.
To keep a constant height while circling the object, don’t change the posture of your body. If you bend or straighten your knees while circling the object, some areas won’t be scanned accurately. The only time that you should increase or decrease the height of the camera is once you’ve completed a rotation around the model. In the same way that keeping your distance from the object helps to keep the geometry accurate, so does keeping the same height as you scan. This will give the application a separate point of reference to look at for better movement detection. To overcome this obstacle, place a small cube next to the object you’re scanning and scan both of them at the same time. Round objects like cups or balls are difficult to scan because as you rotate around them, the phone doesn’t pick up all the movements because the shape of the object doesn’t change much as you circle it. Create a point of reference for round objects If the object is heavy enough, you can place it on top of the string and hold the other side while stepping around the object. To do this, use a piece of string to measure the distance as you move around the object. One way to help yourself maintain the same distance at all times is to mark off a perfect circle from the center of the object to the distance you’ll be scanning at. If you take a step back, the object will appear smaller at that angle and if you take a step forward, the object will be oversized compared to the rest of the scan. You need to retain the same distance from the object you’re scanning at all times during the scan, even though you’ll be circling around it. The sun will also cast shadows on your model and ruin the scan. If you perform the scan outside, overcast weather is better than sunny because the clouds act like diffusers to spread the light over the object evenly. To scan an object accurately, you’ll need to illuminate it with lights from every angle or perform the scan outside. The most important aspect of 3D scanning with a phone is that there is enough light to make the object clear to your phone’s camera. Having said that, here are the ways that I ensure 3D scans are as best they can be.
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But if your lighting isn’t perfect or you deviate in distance and height while scanning, the software should still be able to figure things out to a certain extent.
These best practices are for achieving the highest quality 3D scan possible. After the glue has dried between the spacer and the bearing of the fidget spinner, lay the flat surface on the bench and glue the spacer down.įor the other side of the fidget spinner, glue three more bottle caps on each corner to create a base.īest Practices For 3D Scanning With A Phone Plastic bottle caps work well as spaces on fidget spinners. Just lay the spinner down on the workbench and glue a spacer to the middle of the fidget spinner. The concept works the same as an old wheel. If you have a fidget spinner from a few years ago, you can finally use it for something functional.
The lower the display table is, the more secure and balanced it will be. Lay the wheel down on a workbench, attach a small spacer onto the bearing of the wheel, after the glue dries, glue a flat surface onto the spacer. Just glue the display surface to the bearing in the middle of the wheel. You can also use a wheel from an old skateboard or roller skates. The last piece of advice is to attach a string to the bottom of the chair so that you can pull on it to rotate everything while you stay stationary with your camera. Even if you only have a square-shaped surface to put in the chair, just make sure you scan close enough to keep the corners of the surface out of the frame. The only condition is that the chair has a removable backrest so that you can do a 360° scan without it getting in the way.Īfter removing the backrest from the chair, find a flat surface of your choice to put on top of the soft cushion of the chair. If you can find an old office chair, you can convert it into a rotating display stand.
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