sputnik Posted May 11, 2015 Share Posted May 11, 2015 (edited) Any machinists here? I had to watch this twice. Looks like the link starts at the end of the video - it's really worth resetting the start. https://www.youtube.com/watch?t=563&v=AuS6HDHc7XE Edited May 11, 2015 by sputnik Quote Link to comment Share on other sites More sharing options...
Mallette Posted May 11, 2015 Share Posted May 11, 2015 Fascinating. Russians seem to have a penchant for nesting things. Dave Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted May 11, 2015 Share Posted May 11, 2015 In a cube. Quote Link to comment Share on other sites More sharing options...
mustang guy Posted May 11, 2015 Share Posted May 11, 2015 Check into ivory Chinese Puzzle Balls. They nest them as many as 20 layers deep and done by hand. Each ball inside can spin freely. I first saw them at the World's Fair in Knoxville, TN. Here is an example picture: Quote Link to comment Share on other sites More sharing options...
richieb Posted May 11, 2015 Share Posted May 11, 2015 Fascinating yes, but so much more than just that. I've been around machining/machinists for nearly 30 years and this guy has some freakin' skills. The talent of a machinist, artist in one. Not only in machine set up but to visualize the completed piece. Free hand on a lathe no less. It would take countless hours of programming had this been CNC'd. Extremely impressive. Quote Link to comment Share on other sites More sharing options...
oscarsear Posted May 11, 2015 Share Posted May 11, 2015 Looky here......... http://www.chonday.com/Videos/prinliufast3 Quote Link to comment Share on other sites More sharing options...
sputnik Posted May 11, 2015 Author Share Posted May 11, 2015 (edited) Fascinating yes, but so much more than just that. I've been around machining/machinists for nearly 30 years and this guy has some freakin' skills. The talent of a machinist, artist in one. Not only in machine set up but to visualize the completed piece. Free hand on a lathe no less. It would take countless hours of programming had this been CNC'd. Extremely impressive. Yeah, I never would've thought you could machine a cube (much less three nested cubes) just spinning a piece of bar stock on a lathe. Looky here......... http://www.chonday.com/Videos/prinliufast3 Very imnpressive. I wonder if that technology is why DDD stock took a big plunge. Edited May 11, 2015 by sputnik Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted May 11, 2015 Share Posted May 11, 2015 Amazing. Thanks for posting that. I love watching stuff like that. Anyone know how many man hours it took? Quote Link to comment Share on other sites More sharing options...
mustang guy Posted May 11, 2015 Share Posted May 11, 2015 Looky here......... http://www.chonday.com/Videos/prinliufast3 Wow! I am still waiting on a 3D printer for carbon atoms. 100% carbon manufacturing is the future. There was some scuttlebutt about a 3D graphene printer, but that turned out to be an IPO ploy for investors. I think it was some scientist in Russia that was supposedly working on groundbreaking technology for 3D printing graphene. I actually bought some of that penny stock and lost money. Not a lot, about $500. Had it turned out, this would have been a huge gainer. We know how to make polymers very well. We even know how to grow diamonds. When we learn how to print carbon atoms, we will have arrived at the best material strength to weight ratios known to mankind. A space elevator would become a possibility, for instance. Quote Link to comment Share on other sites More sharing options...
richieb Posted May 12, 2015 Share Posted May 12, 2015 Fascinating yes, but so much more than just that. I've been around machining/machinists for nearly 30 years and this guy has some freakin' skills. The talent of a machinist, artist in one. Not only in machine set up but to visualize the completed piece. Free hand on a lathe no less. It would take countless hours of programming had this been CNC'd. Extremely impressive. Yeah, I never would've thought you could machine a cube (much less three nested cubes) just spinning a piece of bar stock on a lathe. My near 30 years were with a Germany based design, engineering, manufacturing company producing multi-million dollar production equipment for the paper industry. Back in the day when most German companies recruited kids in their mid-teens for apprentice programs, since ours was manufacturing based, one of the courses was proper hand filing. Yes there is a right and wrong way to file metal. As a final test they were given a piece of round stock and in a given time, hand file it to a perfect square. Here in the US many of our best machinists were of Eastern European decent. Well educated, well taught and knew their stuff. Looky here......... http://www.chonday.com/Videos/prinliufast3 Very imnpressive. I wonder if that technology is why DDD stock took a big plunge. Quote Link to comment Share on other sites More sharing options...
Johnthang Posted May 12, 2015 Share Posted May 12, 2015 Got to watch a cnc mill do one similar to this one , in the mechanical engineering machine shop in collage several years ago. it was very cool to watch. Quote Link to comment Share on other sites More sharing options...
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