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Cutting spirals with a rose engine lathe - GIF.
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Fascinating — that the spindle is being moved laterally — as well as indexing — to 'bump' into the stationary milling tool.
Thanks for pointing that out that the spindle is moving in and out, I missed that ...that is awesome !! I also missed the belt driven milling cutter the first go round and was really scratching my head wondering how it did that ?!!
Thanks for sharing I love to see how things work
IIRC Lindsay Publications had texts on Rose Engines. A serious mistake in not collecting a few. They're capable of all kinds of ornate patterns, for flat or contoured profiles, since 1600's, probably earlier.
https://www.google.com/search?client...y+rose+engines
Some rose engine rabbit holes to explore...
Nice overview of products made and diagrams of the lathe construction...
http://resources.conservation-us.org...osg023-011.pdf
Various videos of rose engines in use...
Ornamental Turners International
with an example...
https://www.youtube.com/watch?v=MyqeeZpSdEo
Louis XVI was a mechanical geek (which may have had something to do with his delay in starting a family with Marie A) and had several ornamental lathes...
https://www.academia.edu/36018284/Th...Birmingham_UK_
Stumbled on this recently. At $84K, a bit rich for my blood, but still impressive.
MADE Ornamental Rose Engine
https://s3-us-west-1.amazonaws.com/h...ntal_lathe.jpg
$84k. With a lot of ornamentation on a machine tool, clearly for descendants of Louis XVI and commensurate disposable income. Rose turning isn't a big industry, so there is demand, but wonder how many hours are needed to run for return-of-investment, let alone profit?
Incredible! Almost like a mechanical — and mechanically programed — CNC lathe.Quote:
Originally Posted by Jon
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“Holtzappfel’s Turning and Mechanical Manipulation” (5 volumes) published between 1880 & 1900 is a real mine of information. My late friend, Ken Gaines, kindly lent the set to me. A modern reproduction. I have not been able to buy the whole set, unfortunately.