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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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#1
Posted to rec.crafts.metalworking
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I need a bit of help...
On Tue, 27 Oct 2009 18:13:26 -0500, cavelamb
wrote: So anyway, this is what I'd like to have, but plainly, I'm an engineer - not a machinist. Perhaps it's not too late. It's not necessary to be an engineer to invent stuff ... but it definitely helps. Likewise, it's not necessary to be a machinist and/or welder to construct one's creations .... but it definitely helps if such services are otherwise available. If you lived next door, I'd gladly make this thing for you in exchange for a boatride. I like Gunner's tripod leg idea, had the same idea. Tripods (for spotting scopes, etc) work that way, as do some bench rests. Both have similar requirements: desire to set "in the zone" very quickly and remain rigid once set, coupled with a fine or vernier adjust (like threads) capable of very fine adjustments. If I were designing it and make it I'd use a cotter, like the quill lock on a Bridgeport. They can engaged or disengaged about instantly, grab very securely and they're fun to make. I've used them on a number of projects. Some machining and welding/brazing required, they're not found in catalogs. They're described in some detail in one of Lautard's "Machinist's Bedside Reader" books. Hydraulics have some interesting capabilities. If I used hydraulics I'd use coolant (ethylene glycol or propylene glycol mixed with water) rather than hydraulic oil. When (not if) it leaks, it's easily removed with a hose or a slosh from a bucket. I once saw a setup like that for remote engine controls in a dynometer cell. Don't want people in the cell while under test because the noise can be deafening. |
#2
Posted to rec.crafts.metalworking
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I need a bit of help...
I had to Google that for a while to find out what a quill lock
does/looks like. Best guess is a couple of half moon cones that are pressed tight against the quill to lock it in place. Is that at all close? Shoot, Don, if you were anywhere near close, I'd take ya sailing just for asking. And I think I can cobble this thing together now. Maybe not as slick as it could be, but well enough to try it out and see how it works. Don Foreman wrote: On Tue, 27 Oct 2009 18:13:26 -0500, cavelamb wrote: So anyway, this is what I'd like to have, but plainly, I'm an engineer - not a machinist. Perhaps it's not too late. It's not necessary to be an engineer to invent stuff ... but it definitely helps. Likewise, it's not necessary to be a machinist and/or welder to construct one's creations ... but it definitely helps if such services are otherwise available. If you lived next door, I'd gladly make this thing for you in exchange for a boatride. I like Gunner's tripod leg idea, had the same idea. Tripods (for spotting scopes, etc) work that way, as do some bench rests. Both have similar requirements: desire to set "in the zone" very quickly and remain rigid once set, coupled with a fine or vernier adjust (like threads) capable of very fine adjustments. If I were designing it and make it I'd use a cotter, like the quill lock on a Bridgeport. They can engaged or disengaged about instantly, grab very securely and they're fun to make. I've used them on a number of projects. Some machining and welding/brazing required, they're not found in catalogs. They're described in some detail in one of Lautard's "Machinist's Bedside Reader" books. Hydraulics have some interesting capabilities. If I used hydraulics I'd use coolant (ethylene glycol or propylene glycol mixed with water) rather than hydraulic oil. When (not if) it leaks, it's easily removed with a hose or a slosh from a bucket. I once saw a setup like that for remote engine controls in a dynometer cell. Don't want people in the cell while under test because the noise can be deafening. |
#3
Posted to rec.crafts.metalworking
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I need a bit of help...
On Thu, 29 Oct 2009 00:56:05 -0500, cavelamb
wrote: I had to Google that for a while to find out what a quill lock does/looks like. Best guess is a couple of half moon cones that are pressed tight against the quill to lock it in place. Is that at all close? Close. Pictures are better than words here. http://members.goldengate.net/dforeman/cotter/ |
#4
Posted to rec.crafts.metalworking
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I need a bit of help...
On Fri, 30 Oct 2009 01:27:08 -0500, Don Foreman
wrote: On Thu, 29 Oct 2009 00:56:05 -0500, cavelamb wrote: I had to Google that for a while to find out what a quill lock does/looks like. Best guess is a couple of half moon cones that are pressed tight against the quill to lock it in place. Is that at all close? Close. Pictures are better than words here. http://members.goldengate.net/dforeman/cotter/ Nice! Veddyveddy Nice! Gunner "IMHO, some people here give Jeff far more attention than he deserves, but obviously craves. The most appropriate response, and perhaps the cruelest, IMO, is to simply killfile and ignore him. An alternative, if you must, would be to post the same standard reply to his every post, listing the manifold reasons why he ought to be ignored. Just my $0.02 worth." |
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