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Reverse Engineering AJS 7R Cylinder Head


Our client was restoring a 1950’s AJS 7R Boy Racer, which had a cylinder head that was damaged beyond repair. Since replacement parts, for such a classic, are extremely rare our client decided to have a new one manufactured. However, the original would first have to be reverse engineered which is where our highly accurate scanners proved invaluable.


3D scanning technology offers a lightning-fast and highly effective way to transform complex automotive parts into digital models. First, we scanned the cylinder head using our high-tech Creaform 3D scanner, which allow us to rapidly capture the complex geometry of the part with absolute precision. We then used Geomagic Design X to convert the scan data into a parametric CAD model. Next we imported the CAD model into SolidWorks to rebuild the damaged/missing features.


Our client was delighted with the reverse engineered cylinder head, which can now be manufactured and affixed to his motorbike to complete his restoration project. Should the client require subsequent modifications to the design, this will be simple to achieve using our powerful suite of 3D software.

This case study shows that 3D scanning techniques can significantly improve upon the speed and effectiveness of traditional manual methods when it comes to replicating components for vehicle restorations, as well as a wide range of other applications. For help with your next restoration project, simply contact the friendly team at Absolute 3D today.