One of our prospective customers was looking to use 3D scanning for marine propeller quality control & reverse engineering . We performed a proof of concept scan using the GOM ATOS Q 3D scanner to demonstrate the capabilities of optical metrology in this application. In the article below we will explore this project, provide photos of the scan results and a sample inspection report for download. Check out the video below for the full story.

Project Details

For the purpose of this project, we acquired a worn alloy boat propeller. The part had a few visible nicks and dents and some corrosion around its mounting hole. It is a common propeller type and state that our customer might see in a maintenance application and therefore ideal for our purposes. Due to the matte surface finish, the component did not require scanning spray to collect accurate data.

For the 3D scan, we used the ATOS Q in conjunction with the ROT 350 automated rotation table. The ATOS Q is a highly versatile sensor built for industrial applications where precision is critical. It captures up to 12 million points per scan creating highly precise meshes which would allow our customer to measure critical dimensions to their required tolerances. The ROT 350 automated rotation table helped us speed up the scanning process but would not be required to operate the ATOS Q. The scan took approximately 10 minutes to complete using this set up.

Marine Propeller 3D Scan Results

Using the ATOS Q‘s captured data, GOM Suite harmonizes the scans using the surface dots as reference geometry and automatically creates a precise STL mesh of the component. The result is an accurate digital twin of the propeller which can then be used to measure and analyse any of the part’s features or defects. This digital twin can also be transformed into CAD data which can be use for tasks such as propeller performance or pitch verification, manufacturing of a new propeller based on the existing part, or repair & service work. Take a look at the photos below showing some of the scan data and analyses performed. For full details, download the inspection report using the form at the bottom of the page.

Download Marine Propeller Inspection Report