Work Flow   l   Reverse Engineering


What to expect from using 3D scanning technology?

Model View Engineering Service Inc. is an engineering services company that provides design and molding services to customers in Iran. This company used to outsource all scanning services and has spent considerable resources doing so. But lately, they ended their dependence on outside agencies by introducing the Rexcan models into the working process and now scan dozens of parts in-house every month, which greatly saves both time and money.

Not only did the quality of the 3D scan data obtained using the Rexcan noticeably surpass the previously out sourced ones, it also provided improvements in terms of edge data sharpness, accuracy, and data completeness. Model View Engineering Service Inc. are very satisfied with the improved quality of their services and reduced investment.

A complete workflow of the reverse engineering process of a motor bike fender

1. 3D measurement with Rexcan

With Rexcan series, you can get data with high accuracy, high resolution with low noise at a high speed, which is ensured by its H/W technique and the algorithm in ezScan, hence the high quality of the exported STL data, which plays the primary important part in the fine reverse engineering process.

  • - Attach 5 ~ 6 reference targets on lateral sides of both front and rear parts of the fender for data auto-alignment, and scan the front and the rear parts with Rexcan 3 separately.
  • - 2 data groups (front part and rear part) will be aligned automatically using reference targets in the ezScan software.
  • - Make the 3D scan data into a single triangulation mesh with ‘Batch processing’ function, and export it to .STL format.

2. Reverse Engineering

  • - Load scan data (.STL format) into the reverse design software.
  • - Define the plane and its axis for coordinating the reference axis with them.
  • - Fit the point data to create surfaces
  • - Trim those surfaces for obtaining the complete 3D surface.
  • - Add specific features on the 3D model such as holes and patterns to generate the final surface.
  • - Convert the surface which was generated in the previous step into a model for mold production.