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Even if it were fairly specific, I’d be surprised if a similar tool couldn’t be 3D printed with DMLS. It’s possible that due to torsion requirements it would have to be molded, which could be much more expensive.

Either way, this is hardly a case where others will be prevented from removing these screws for very long, even if they were to try to enforce that others couldn’t produce a similar tool because of the logo.

It is a sad state of affairs when the only way to attempt to get others to use your services is to attempt to block them. But, unlike attempting to remove DRM encryption, where it might be a challenge to reverse engineer, a physical object of a single standard material can be easily scanned and reproduced.





> Even if it were fairly specific, I’d be surprised if a similar tool couldn’t be 3D printed with DMLS. It’s possible that due to torsion requirements it would have to be molded, which could be much more expensive.

A CNC mill should also be capable of creating an usable driver bit, or in a pinch, drill out 1mm center of an ordinary + bit.


Plus, if you you are handy enough to be taking the screws out of your car but don't have a CNC mill, you probably know someone who does, who would love a little weekend project to turn you up a nice BMW screwdriver

This is an inherently weak fastener design, it requires the driver to have 2 separate 'pins' to fit the 2 quadrants of the logo. Even with a proper forged tool this will be weaker than a torx or hex bit. Basically the only way this would be manufacturable is 2 forged pins shaped like quarter circles that are pressed into a socket.

This isn't that different to how other bit sockets are made, but instead of loading the bit in torsion, it will be subject to bending forces to loosen the bolt. This will make it far weaker than other tools. So good luck loosening these once they have a few years of corrosion on them. Plus, with the head design, they'll be far harder to drill out to get a bolt extractor on. Although 3d printing and scanning don't really help that much here.




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