The idea of sharpening or editing drills with the help of an engraver has already appeared on our website. In order not to create a nozzle made of steel and to improve the device, the author of the video used a 3D printer.
Unlike iron, a plastic nozzle has several guides for sharpening drill bits of different diameters. The detail turned out to be difficult even for a 3D printer, so it had to be independently developed.
The calculation of the device is performed on free programs, the development of which will take some time, but seeing the result, we can say with confidence: it was worth it.