7/31/2023 0 Comments Excentro guillocheThis is, incidentally, exactly how engine turning and jeweling are done in the real world. Yes, the tools are a bit more expensive, but you’re still looking at a somewhat soft tool scraping a fine abrasive into a piece of metal. The trick to engine turning comes in getting a consistent pattern on the piece, something that could easily be done with a CNC machine. Posted in Tool Hacks Tagged aluminum, Engine turning, jeweling Post navigation If anyone out there feels like putting a pencil in the collet of a CNC router, we’d love to see the results. I don’t own a rose engine (aka guilloche lathe), but I have actually done real engine turning (guilloche) on an actual rose engine for an afternoon with the US expert David Lindow. He runs a wonderful newsletter you can sign up for that covers the real deal at his website. If you’re interested in this topic there is actually a society for this in the US, the Society of Ornamental Turners: īrittany Nicole Cox of Memoria Technica in Seattle does several classes a year with him teaching beginners real engine turning and it’s quite reasonably priced. Technically what this technique is called among horologists and ornamental turners is “spotting”, aka perlage. It can be done many ways but it’s pretty much the same- either an abrasive pad or wire cup wheel in a drill press milling machine or even hand drill. There are specialized machines within the watchmaking community that are quite rare designed to do this on watch movements and watch cases, and they use typically a wooden dowel turned to the diameter of the peralage spot you want to make, charged most often with diamontine ( diamond powder) of varying mesh sizes, usually around the equivalent of 300 grit I believe, or finer. ![]() The machines that are specifically designed to do this rely on the fact that the machine spindle is not perfectly perpendicular to the work surface by only fractions of degree. It’s actually easy to do this, spotting (perlage), but extremely challenging to do actual engine turning (guilloche). Myself on An Amiga Mouse, The Modern Way.Ronnie D Lyle on NASA Help Wanted: Ham Radio Operators Please Apply.Steve on German Air Force Surplus Teardown.Michael Black on German Air Force Surplus Teardown.That involves a very special type of cutter that is half burnisher, half neutral rake cutter.
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