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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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lathe design
Does anyone know of any good sources on lathe design, preferably online, but
I can try the library if that's warranted. I'm especially interested in smallish lathes, about 50mm above bed height and 150mm between centres, but capable of very high accuracy (approaching 0.001mm). Is belt drive better, or is a fully geared head a reasonable choice? Remembering also that I am going to have to cut any unbuyable gears... In the headstock of a small lathe with some kind of belt drive, the pulleys are usually arranged so the largest is nearest the chuck. Any special reason? Is myford type backgearing better than the traditional type with two cog sets at either end of the pulleys? Why? I have a zillion more questions, but that's enough for one post. Thanks, -- Peter "Sweet dreams are made of Anything that gets you in the seam And I feel like I'm Seventeen again." Eurythmics |
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Peter Fairbrother wrote:
SNIP capable of very high accuracy (approaching 0.001mm). SNIP Wow. You're talking ABEC-7 bearings at a minimum. That's a few buckaroos, for sure. G You'll need very good lead screws, probably ball screws. Personally, I'd buy a Hardinge & fix it up. Don't know about the .001mm though. Good luck. -- Steve Walker (remove wallet to reply) |
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On Sat, 04 Dec 2004 04:13:41 GMT, Steve Walker
calmly ranted: Peter Fairbrother wrote: SNIP capable of very high accuracy (approaching 0.001mm). SNIP Wow. You're talking ABEC-7 bearings at a minimum. That's a few buckaroos, for sure. G You'll need very good lead screws, probably ball screws. Personally, I'd buy a Hardinge & fix it up. Don't know about the .001mm though. 0.0000393"? Why, that's less than a hundredth of an RCH. ----------------------------------------------------------------------- A PSYCHOLOGIST looks at everyone -else- || http://www.diversify.com when an attractive woman enters the room. || Full Website Programming |
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Larry Jaques wrote:
On Sat, 04 Dec 2004 04:13:41 GMT, Steve Walker calmly ranted: Peter Fairbrother wrote: SNIP capable of very high accuracy (approaching 0.001mm). SNIP Wow. You're talking ABEC-7 bearings at a minimum. That's a few buckaroos, for sure. G You'll need very good lead screws, probably ball screws. Personally, I'd buy a Hardinge & fix it up. Don't know about the .001mm though. 0.0000393"? Why, that's less than a hundredth of an RCH. or a thousandth of a BCH? ----------------------------------------------------------------------- A PSYCHOLOGIST looks at everyone -else- || http://www.diversify.com when an attractive woman enters the room. || Full Website Programming |
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