This article will review the most common image scanning problems and how to solve them
Typical Problems Include
- Operator zoomed in too much and did not include the frame of the Light Box in the picture.
- Operator allowed something unintended to cover the frame of the Light Panel
- Part is top large for the Light Box and overhangs the frame on the Light Panel
- Clear plastic part on the Light Box did not scan correctly.
- A good example of this is a clear plastic handle of a screwdriver
- Operator did not turn the Light Box on
- Tall parts require the camera to be very straight
To test that your Light Panel is providing images that scan into the correct size we recommend using a test object. For example snapping an image of a ruler and using it to reference that the image scan is measuring correctly.
Taking a Photo Correctly
- Be sure the camera is flat - or - 90 degrees from the light panel surface
- Zoom in on the light panel and fill 85% to 90% of the camera window with the light panel. Ensure that the frame of the light panel is visible in the picture
- Make sure all tools are sitting on the light panel's lit surface and not overlapping.
![](https://d2x3xhvgiqkx42.cloudfront.net/10084181-14aa-4880-a727-1e5ff8e26ef6/1a519587-b136-4feb-9301-e3ffeec58def/2022/05/02/b1c71e64-919b-42cc-82e0-4a54b35486db/d6fff1a1-b203-41cf-bb02-ff7d20e7fd85.png)
- All 4 corners should be visible in the photo
![](https://d2x3xhvgiqkx42.cloudfront.net/10084181-14aa-4880-a727-1e5ff8e26ef6/1a519587-b136-4feb-9301-e3ffeec58def/2022/05/02/2136a804-d5cc-463a-9e66-e56b173f8e7e/2c91721a-4692-4677-9350-36605bb8ddb8.png)
Light panel photos should have a minimum distance of 1.5 M (4.9 feet). However it is important to consider that the OSAAP scanning process is most commonly used with tools that are less than 1 1/2" thick (1.5" is 2.5% of 4.9') which will result in very little shadowing. As your parts get thicker than 1 1/2" we recommend applying a 2X general-rule: increase the distance between the camera and the light panel by 2X the part thickness for parts thicker than 1 1/2".
What does a good image scan look like?
![](https://d2x3xhvgiqkx42.cloudfront.net/10084181-14aa-4880-a727-1e5ff8e26ef6/1a519587-b136-4feb-9301-e3ffeec58def/2022/05/02/8257989e-214b-414a-b1ca-204be34717f6/f69cb1b9-96f0-49c2-871c-962bf2758f4a.png)
- Photo 16 MP used should be <90%
- Scanbord 16 MP used should be <50%
- Relative Size used should be <50%
- Relative Size used should be <97%
- Angle out of Center Y should be >97%, <102%