The impeller was damaged by rocks when it manoeuvred to go back into the sea from land. The first is an impeller on a Landing Craft Vehicle Personnel used to land marines on the shore. Several case studies summarise the effectiveness of 3D scanning. This model is then expored to reverse engineering CAD program Spaceclaim, ready to be turned into an STL file or instructions for a CNC milling machine. When a part is scanned, the resulting file is adjusted on Artec Studio to create a “perfect model”. In light of this, scanning and reverse engineering is the most viable, most cost effective and least labour intensive solution. Jansen notes that “older processes were very intensive requiring multiple types of measuring tools and then replicating the drawing into a CAD programme”. A damaged propeller next to an Artec EVA 3D Scanner and a scanned and reproduced archetype. While reconstruction of parts after measuring the existing ones was sometimes possible, it was not always feasible. This applies to out of use parts from older vessels, or parts inaccessible on a ship.
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The problem with manual replication and repairsīen Jansen, CNC coordinator at Marinebedrijf Koninklijke Marine, noted that “a lot of times we don’t have drawings or 3D CAD files of the things that need to be repaired or where we need to make new parts for existing systems”.
The company made use of Artec’s structured light “Eva” and “Space Spider” scanners for the project. Since May, Marinebedrijf Koninklijke Marine (MKM), the material and asset maintenance company of the Netherlands Royal Navy, has been using Artec 3D scanners to scan a range of the Netherlands’ naval craft and reverse engineer the complex parts within them.
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