Understanding Open vs Watertight 3D Scan Files in Reverse Engineering
In engineering, the distinction between ‘open‘ and ‘watertight‘ 3D scan files is crucial. Specifically, a watertight file means the scanner has captured the entire object; however, hidden areas may complicate this. Moreover, watertight scan data is essential for 3D printing and CNC milling. While reverse engineering is often needed, it is not always mandatory. In fact, the simplest approach is to redesign the part in CAD based on the scanned data, using it as a guide to recreate the original design. Importantly, 3D scanning is the first step in reverse engineering; without it, the process cannot start. Therefore, understanding watertight files aids engineers in navigating reverse engineering complexities, ultimately fostering innovation in 3D printing.
Front Steering hub CAD Reverse Engineering from STL file
Conversion from 3D scan data STL (Parametric 3D CAD model)
Example of CAD Reverse Engineering of impeller. STL to STEP file
1:18 Scale Reverse Engineering example
CAD redesigned in Geomagic Design X
Car nose cone CAD Reverse engineering example
Reverse engineering can be a demanding and time-consuming task. When converting a part into a STEP file, the complexity of its shape greatly influences the time needed. For simpler components, the process may take only a few hours. However, for more complex geometries, like an automobile engine, a car bumper, or freeform surfaces, it’s essential to maintain smooth transitions and curves between surfaces. In these cases, the reverse engineering process might require a full day or even more, depending on the details involved.
To get a quote for this service, simply send us a few images of the part you want to convert. This will allow us to evaluate its complexity and provide you with an accurate estimate.