Producing Geometry You Can Trust
QC provided an engineer for our project who did a great job of collecting the dimensional data for the parts to be reverse engineered, creating the CAD models, and producing prints for manufacturing. He kept in regular contact with me throughout the project, allowing us to quickly resolve issues as they arose. He was also very responsive when asked to make changes to the prints. Overall, a superior job.
- Paul,
Power Generation
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Knitting Broken Geometry
Objects that have broken or missing geometry can sometimes be repaired in the 3D scan file with positive results.
One of the great advantages of 3D scanning is that the scan captures exactly what the object looks like. However, that can pose a problem when an artifact includes fractures with some of the geometry missing. In that case, the scan includes features that are not desirable in the finished 3D model.
This object came in several pieces with fragmented edges. The goal was to scan all the component pieces and produce a file that could be used to create a single mold. Through a series of post-processing steps, broken geometry can be aligned and knitted back together to create a water-tight model that is ready for tooling.
The edges of each object were cut away from the 3D scan data to produce only the top surface geometry. Then each of the component pieces were aligned and surfaced. Once those steps were complete, the openings in the file could be knitted back together by filling each area individually.
The resultant file closely resembles the original artifact, is water-tight, and ready for the CNC mill.
©2012 David DeVowe
