Scanning

Capture accurate dimensions of objects and environments so that you can manipulate and or print them.

1. 123D Catch
   You can use Catch on your phone or iPad or use a digital camera and upload the images in the application or on the web version of 123D Catch.

   Guidelines for capturing

   1. Rotate around your object, capturing a frame every 5-10 degrees. You are trying to get at least 50% overlap between images. Move the camera at regular intervals and in a predictable pattern (left to right and from top to bottom).
   2. If using a camera take 30-50 photographs. If using the iPad you are limited to only 40 frames. You will get a ten frame warning. While it seems counter-intuitive, a point and shoot camera may take the best capture because of the algorithm used.
   3. Decide on a focal length. Once you start capturing frames, avoid zooming in or out. Zooming will distort your capture and will make it impossible for the application to align your set of images. Try to fill the frame with your image.
   4. Avoid reflective surfaces or objects with glare. Mirrored or transparent surfaces will not work either.
   5. Before you start, plan out the order in which you will take the frames. Work consistently from high to low, and from left to right. If you keep your sequence consistent you will be able to to identify errors (if they happen) later.
   6. Consider using some sort of marking system when your subject lacks discernable features. You need four points for registration between any one image and two other images in the collection. Consider using a high contrast tape. Place enough markers so that at least four are always visible from any of the positions you plan to shoot from.
   7. Your subject should be motionless.
   8. You can choose the resolution quality when you upload your captures at 123d catch.
      

   After Capturing Images

   1. Navigate to 123D Catch. Sign in or create an account.
   2. Select Catch from the list on the left
      
   3. Select the Launch button:
      
   4. Click Start a New Project:
      
   5. Navigate to or drag your photos into the application. You must have a minimum of 6 and a maiximum of 70
      
   6. Wait a bit for the service to process your images.
   7. View the mesh.
   8. If you would like to use the 123D Catch editor you may have to download or update the 123D Catch plugin
   9. You could also download the model and edit in MeshMixer
   Autodesk's How To Page
2. 3D Sense
3. iSense 3D
4. Structure Sensor
5. MakerBot Digitizer