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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,alt.machines.cnc
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Fishy Fixture?
Awl--
An old friend, an old-school machinist who did most of his years in the the physics dept. machine shop of a big name U in NY, occasionally lowered himself to do work for the biology dept. He told me the other day he once made (and designed) a fixture for holding **live goldfish**!!! For this marine biologist, so's he could implant probes, chips, etc. into these fish, and send them on their way. wow......... This came up as we were laughing about the angst caused by having to tap holes as the *last* step of complicated parts. I had just broken a 1/4-20 tap in one of my follies (not even a blind hole, so there's not much of an excuse, ceptin for bein an asshole), and was telling him about my compadre who about once a month calls me up to complain about his workers, and often asks, rhetorically, HTF do you break 3/8 AND 1/2 taps??? How do they DO it????? I guess the same way they ruin 6" Kurt vises, by putting pipes on the handles.... Inyway, my fish fixture friend broke a 2-56tap in his fishy creation, hadda stay all night re-making it. Promised to show me his piece--proly will give it to me! We both collect interesting machining examples. -- Mr. P.V.'d formerly Droll Troll |
#2
Posted to rec.crafts.metalworking,alt.machines.cnc
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Fishy Fixture?
I have worked in university research shops for most of my career (retired
now), both in design and machining. A lot of interesting stuff passed through my mind and hands. For the most part, really interesting people to work with too. Made one device that regulated, at a variable rate, water through a closed loop of pipe. In it was a fish (trout) that had to swim slower or faster dependant on flow rate. The oxygen levels of the water was monitored to determine how much energy the fish used to keep up with the current. End result was how much food does a fish require to survive. Strange stuff these researchers get into. JAMW "Proctologically Violated©®" wrote in message ... Awl-- An old friend, an old-school machinist who did most of his years in the the physics dept. machine shop of a big name U in NY, occasionally lowered himself to do work for the biology dept. He told me the other day he once made (and designed) a fixture for holding **live goldfish**!!! For this marine biologist, so's he could implant probes, chips, etc. into these fish, and send them on their way. wow......... This came up as we were laughing about the angst caused by having to tap holes as the *last* step of complicated parts. I had just broken a 1/4-20 tap in one of my follies (not even a blind hole, so there's not much of an excuse, ceptin for bein an asshole), and was telling him about my compadre who about once a month calls me up to complain about his workers, and often asks, rhetorically, HTF do you break 3/8 AND 1/2 taps??? How do they DO it????? I guess the same way they ruin 6" Kurt vises, by putting pipes on the handles.... Inyway, my fish fixture friend broke a 2-56tap in his fishy creation, hadda stay all night re-making it. Promised to show me his piece--proly will give it to me! We both collect interesting machining examples. -- Mr. P.V.'d formerly Droll Troll |
#3
Posted to rec.crafts.metalworking,alt.machines.cnc
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Fishy Fixture?
wrote in message hlink.net... Made one device that regulated, at a variable rate, water through a closed loop of pipe. In it was a fish (trout) that had to swim slower or faster dependant on flow rate. The oxygen levels of the water was monitored to determine how much energy the fish used to keep up with the current. End result was how much food does a fish require to survive. Strange stuff these researchers get into. Without enough oxygen, then matters not it's food supply.... -- SVL |
#4
Posted to rec.crafts.metalworking,alt.machines.cnc
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Fishy Fixture?
I built a fixture for holding a mouse while researchers shave a patch
on its back for doing some kind of hair research. It consisted of a small hole where the mouse would stick its head. The researcher would hold its tail and it (apparently) instinctually tries to get into the hole, thus immobilizing the mouse enough to do the job. Some time ago I posted a story about how I had sunk to a new low, making a "plastic asshole". It was a plastic box with an adjustable rubber sphincter. It was to test the concept of a robotic probe to palpate the prostate, replacing the physician's finger. Also, we make many acrylic fixtures that approximate the shape and volume of the human torso. The fixtures are filled with a gell that has the same electrical conductivity as flesh. These fixtures are stuck in medical devices (MRIs etc.) with pacemakers, insulin pumps, etc in them. The medical device manufacturers need to know what happens to the devices when the person they are implanted is in an MRI. Heating is a big problem. Today I'm working on a plastic cranium. I don't know how it will be used. It's a box with holes for pressure gauges, inserting syringes etc. It's kind of fun doing odd stuff. Curt Benson |
#5
Posted to rec.crafts.metalworking,alt.machines.cnc
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Fishy Fixture?
"Proctologically Violated©®" wrote in message ... Awl-- An old friend, an old-school machinist who did most of his years in the the physics dept. machine shop of a big name U in NY, occasionally lowered himself to do work for the biology dept. He told me the other day he once made (and designed) a fixture for holding **live goldfish**!!! Not really the same but I once sold a Fein MultiMaster to a research doctor at a hospital to cut up frozen cadavers. Regards, Robin |
#6
Posted to rec.crafts.metalworking,alt.machines.cnc
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Fishy Fixture?
"Proctologically Violated©®" wrote in message ... Awl-- An old friend, an old-school machinist who did most of his years in the the physics dept. machine shop of a big name U in NY, occasionally lowered himself to do work for the biology dept. He told me the other day he once made (and designed) a fixture for holding **live goldfish**!!! For this marine biologist, so's he could implant probes, chips, etc. into these fish, and send them on their way. wow......... This came up as we were laughing about the angst caused by having to tap holes as the *last* step of complicated parts. I had just broken a 1/4-20 tap in one of my follies (not even a blind hole, so there's not much of an excuse, ceptin for bein an asshole), and was telling him about my compadre who about once a month calls me up to complain about his workers, and often asks, rhetorically, HTF do you break 3/8 AND 1/2 taps??? How do they DO it????? I guess the same way they ruin 6" Kurt vises, by putting pipes on the handles.... Inyway, my fish fixture friend broke a 2-56tap in his fishy creation, hadda stay all night re-making it. Promised to show me his piece--proly will give it to me! We both collect interesting machining examples. Built a tool about 5 years ago ... Running wire across spools, pulsed interruption of a magnetized wire with laser, makes a "bar code" so to speak--end use was in marine research, for the eventual implanting of tiny 'coded' wire segments into the baby fishes noses--for tracking purposes... Haven't fished for a while, ( figuratively speaking ) but I've heard that oftentimes nowadays game wardens have some kinda 'wand'....reads that code.... -- SVL |
#7
Posted to rec.crafts.metalworking,alt.machines.cnc
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Fishy Fixture?
On Thu, 9 Feb 2006 02:45:35 -0800, "PrecisionMechanical"
wrote: Running wire across spools 8 micrometers diameter Stainless wi http://www.msm.cam.ac.uk/phase-trans...s/Image12.html -- Cliff |
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