Thin, flat objects may look simple, but they can be surprisingly challenging to scan. Parts like mouse battery covers, plastic panels, and other thin components often bring unique scanning challenges.
I recently scanned a mouse battery cover and encountered several issues that many users may have experienced:
- Limited overlapping areas make multi-project alignment challenging
Because thin parts provide very little shared area and unique geometric information between scan projects, it can be difficult for the software to find reliable references to determine the correct alignment. As a result, the multi-project alignment may become less accurate, causing small deviations or shifts in the final model.
- Small details are difficult to capture
Features such as clips, narrow slots, recessed areas, and sharp edges can be challenging to capture completely and accurately, especially when they are very small or located in hidden areas.
After testing different scanning approaches, I found that using Global Marker mode provides an efficient and accurate workflow for this type of object when markers can be placed on the surface. The entire part can be captured in a single scan project.
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Place at least four markers on both sides of the battery cover. Add extra markers around the object to maintain stable tracking when switching between different areas.
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Place the cover upright and start the global marker scan. Make sure the markers on both sides are captured within the same project.
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Remove unnecessary surrounding markers before scanning point cloud to avoid capturing unwanted data.
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Start scanning the object. With the global markers as a reference, both sides of the battery cover can be captured in a single project while maintaining the correct spatial relationship without additional alignment.
Besides, for edges, narrow slots, and clips, scanning from multiple angles helps capture complete geometry and hidden details. Using scanning spray would also be a great solution to reduce reflections and capture more data of edges and narrow areas.
How do you usually scan thin and flat objects? Share your experience and tips in the comments!
