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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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#41
Posted to rec.crafts.metalworking
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Uh Oh, metal related. Gluing glass to metal?
On 2013-09-18, Larry Jaques wrote:
On 18 Sep 2013 04:22:37 GMT, "DoN. Nichols" wrote: On 2013-09-18, Larry Jaques wrote: rOn 17 Sep 2013 23:20:03 GMT, "DoN. Nichols" wrote: [ ... ] I'll keep eyeballs peeled for those, Don. Thanks. Speaking of crystal ovens, I have one from the '50s which I use as a fire safe. It's made with that horrid OHMIGODWEREALLGONNADIE asbestos stuff. BTW -- I was meaning to ask how big a crystal oven you *have*. A fire safe for *what*? The crystal ovens I have plug into an octal tube socket, and have just enough room inside for the heating element, the thermal switch, and a quartz crystal (say about 1" x 3/4" by 3/8" depending on the age and the style). The Power Designs 2005s have a zener diode in there instead -- same principle -- keep the temperature steady to keep the value (frequency or voltage) steady. I do have a larger one which could hold a medium size prescription pill bottle. It has a glass enclosed (and likely in vacuum) crystal. Overall size is about that of a beer can. Mine's a bit larger. Roughly 14d x 18w x 20"t. There's a small padlock hasp on the side and 2 shelves in the middle. The heater was taken out before I got it, and there is a light bulb socket outside (lower right near the back) which let you know it was running. I put a piece of steel over the grommeted 3/4" hole on the top. O.K. An oven -- and likely a lab oven, but not what I would call a "crystal oven". (Perhaps the brand was "Crystal"? :-) I keep legal papers, DVD backups, and a few coins in it. O.K. Makes sense if you don't have a use for it as an oven. It sounds like it would do a nice job tempering steel after the quench, but not get things hot enough for the quench. If it did, the wire shelves would sag. (They are wire, aren't they?) I do have a little furnace which will get up to at least 1850F (in about an hour), with lots of insulation, and a working area about the size of a brick. It came with the heating elements, but no controller. I had a NOS Omega controller, sold as overrun from a project by someone on this newsgroup years ago, which I got "just in case". I had to hook it to a solid state relay to handle the current that the oven used, but it does a really nice job. Setting it for 1800F it goes up to about 1400, turns off for a while to see how much overshoot there is, then turns back on and eases its way up to the setpoint. It goes all of 1 degree F over temperature, nothing more. [ ... ] Ouch! They aren't giving those away, are they? Nope -- but they were around $500-$900 in the late 1960s. which would be several K these days. Hamfests are better than eBay -- but you have to wait longer to find what you want. :-) I'm liking that new Chiwanese $50 p/s better already. I think that one with a poor photo was about $75.00 or so, which is pretty close to your $50.00. But Figure maybe $35.00 to $50.00 at the hamfest these days. Less if someone doesn't know about the sense jumpers on the back and thinks that it does not work (and is honest about it). :-) [ ... ] Um, rivets aren't supposed to be removed, sir. g That means you usually have to support the engine/trans, then remove the xmember and about 400 other things to get at the item you need to replace. Lots of fun, that. Well ... I went through several web pages about how to change them (actually the bushings on the radius rods), and given the tools I had, the remove the rivets and put in the bolts fit better. Just getting a big enough socket inside the front coil spring was a nasty job, and I did not want to put that much torque on it without having a hydraulic lift. Jack stands are just not that steady, even with several extras. That's when you borrow your buddy's lift and do it overhead, while standing up. Much safer and easier. Shadetree's a bitch. I don't have a buddy with a lift. At least none close enough to make it worth while. And some of the web pages said that they *may* have bolts already, suggesting that either the factory used them some of the time, and rivets the rest -- or that it was a common repair approach. :-) It worked, which is what matters. :-) OK, but do keep an eye on the tightness of those bolts. Or didja locktight 'em? Split lock washers, and torqued to a reasonable point. But yes, it is time to re-check them again. [ ... ] I knew that. I was just saying that I need to go to learn stuff and to find those treasures you found. Learning what you need to pass the exam(s) won't tell you what these good things in the hamfests are. The hams who bought the lot at the surplus sale have already pulled out the directly ham-related stuff for their own use. :-) Twice, you've seemed to miss my dual point, seeing only one in the sentence. Should I have put it A) I need to get my tickee and B) go to the hamfests to find treasures (and pick brains)? Looking at the sentence again, I see what I missed. I was rather sleepy, and you did not call attention to the "and", which was lurking at one end of a line of text. Perhaps I would have done it as *and*. :-) [ ... license exams ... ] You went whole hog into it, dincha? Well ... as I was learning about the questions in the earlier exams, I was learning that there were things which I could not do as a Technician which I could as a General, and things which I could not do as a General which I could do only as an Extra, so I figured that I should go for the highest so I would not wind up accidentally doing something which I could only do as a higher class. Grok that. I intend to keep Ham low-key, so technician class is fine for me. If I get a wild hare later, so be it. O.K. [ ... ] I only spent 3 years as a tech and didn't really learn as much as I would have wished. I have regrets about that, but I wasn't prepared to drive 2-3 hours in rush hour traffic to the outskirts of Sandy Eggo to get it. Understood. I was driving about 45 minutes each way (going the opposite direction of the majority of rush-hour traffic), so that was I had that same opposite drive 15 minutes each way, so when SKF took over Palomar Technology and combined entities elsewhere, I was ****ed. I've been self-employed ever since, though. That was when I took "discontinued service retirement" from the lab. They moved my job to Maryland, going the bad traffic direction (which they did not count), but a longer drive (all of one mile) which they *did* count into my eligibility for the (slightly) early retirement. However, the *real* reason was that I did not like the "vibes" in the interaction between different groups there -- not the cooperation which we had where I had been. [ ... ] I have a Ham CD a friend gave to me with all the exam questions and answers, programs, and information on it, and I bought the Dummies Guide to Ham Radio (pdf) the other day. It's just a matter of studying them and takee tickee. How long ago did he give it to you? The exams are updated about once every three years, with the Extra class one updated in 2011 IIRC. So it is about time for the Technician class to be updated next year, I think. 2012. O.K. It should be good enough then. Not sure how the programs go -- it could be that they are like one of the ones at the practice sites. But it is good to get the feel for the exams so you are comfortable when the real ones come along. Good Luck with your exam(s) (however many you choose to take.) Just the Tech, at least for now. O.K. You're more used to getting up early than I am these days. :-) I am. I get up at 4 or 5am most days, even Sunday. g I'm in bed reading at 7pm some days, and turn the lights out at 10ish. Very different. My body has always wanted to be a late hours person, and once I retired, my body claimed its due. :-) [ ... ] I haven't been terribly intrigued by Ham, so I'd likely just use it as a local emergency radio when (not if) the SHTF. O.K. Of course, when it hits, the license will probably not be worth the paper it is printed on. :-) But being used to using the radio, and knowing the other people in the area will probably be a benefit. Perzactly. AFAIK, I've never lived where lighting struck wires or antennas. It has never affected me personally during my 60 years so far. (Me glad, BTW) [ ... ] Interesting. I grew up in South Texas, and the old house had lightning rods. And I remember them "thummm"ing when struck. And we also had a few trees (not many in South Texas) hit and large chunks split off. There was not much rain, but when there was, it was often a serious thunderstorm, and I remember sitting on the porch watching it approach -- and loved to watch it. I'll bet that was fantastic, though loud as hell. As a little kid, I loved the noise and the sight of the bolts. I know some adults who can't stand the lighting and thunder. Most can't. I've always been a science buff and wild stuff thrills me. There aren't too many things more wild than lightning. Interesting. My wife has no problems with the thunder and lightning -- but our rent-a-daughter (really the daughter of a long time friend who sometimes stays with us) really does not like it at all. [ ... thundersnow ... ] Tends to happen only in certain weather conditions, usually a blizzard in this area. It is uncommon enough so the TV weather men make a big thing about it each time it happens. Probably about once every three years, here. Kinda like Sandy Eggo weathermen going nuts over red tides and grunion runs. Hmmm ... I thought that the red tides were an East Coast phenomenon. I know that we've had it in the Chesapeake, and off the coast of the Carolinas. Maybe a bit wider spread than I thought. As for grunion -- sounds more like a British name for an auto part. :-) I find thunder and lightning fascinating, too. AFAIK, I've never been scared of it. Earthquakes are kinda cool, too. (Well, up to 4.5 is all I've felt.) I've only *noticed* one -- a couple of years ago towards central Virginia. It shook a few things off shelves up here, but no damage to the house. However, it brought the triangular brick part under the end of a roof toppling down on a bunch of cars in the parking lot a few miles way -- sort of variable how hard it hit. O.K. It aw in 2011, and was a 5.8 magnitude. Lots more damage near the epicenter. I could tell that it was somewhat distant, because I first felt horizontal motion for several seconds, and then vertical, which felt a lot stronger. The other I've been in, but did not notice directly, was in Guyaquil Ecuador. I woke up and heard voices out in the street (vendors) crying "terramoto" (earthquake), but the springing on the bed kept me from feeling it -- though it might have helped me wake up then. :-) Dad and I were on a guys-only trip to Mexico when I woke up one morning. I had never felt an earthquake and he asked if I'd felt the one at 4am. I was ****ed that I'd slept through my first one. He said it was about a 3.2 or so, nothing to write home about. I was 16, I think. I think that I was about 17, and pretty much the same feeling. Enjoy, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#42
Posted to rec.crafts.metalworking
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Uh Oh, metal related. Gluing glass to metal?
On 18 Sep 2013 21:05:30 GMT, "DoN. Nichols"
wrote: On 2013-09-18, Larry Jaques wrote: On 18 Sep 2013 04:22:37 GMT, "DoN. Nichols" wrote: On 2013-09-18, Larry Jaques wrote: rOn 17 Sep 2013 23:20:03 GMT, "DoN. Nichols" wrote: [ ... ] I'll keep eyeballs peeled for those, Don. Thanks. Speaking of crystal ovens, I have one from the '50s which I use as a fire safe. It's made with that horrid OHMIGODWEREALLGONNADIE asbestos stuff. BTW -- I was meaning to ask how big a crystal oven you *have*. A fire safe for *what*? The crystal ovens I have plug into an octal tube socket, and have just enough room inside for the heating element, the thermal switch, and a quartz crystal (say about 1" x 3/4" by 3/8" depending on the age and the style). The Power Designs 2005s have a zener diode in there instead -- same principle -- keep the temperature steady to keep the value (frequency or voltage) steady. I do have a larger one which could hold a medium size prescription pill bottle. It has a glass enclosed (and likely in vacuum) crystal. Overall size is about that of a beer can. Mine's a bit larger. Roughly 14d x 18w x 20"t. There's a small padlock hasp on the side and 2 shelves in the middle. The heater was taken out before I got it, and there is a light bulb socket outside (lower right near the back) which let you know it was running. I put a piece of steel over the grommeted 3/4" hole on the top. O.K. An oven -- and likely a lab oven, but not what I would call a "crystal oven". (Perhaps the brand was "Crystal"? :-) Unlabeled. It had been used as a crystal baking oven by the eng dept. way back, hence the title. I keep legal papers, DVD backups, and a few coins in it. O.K. Makes sense if you don't have a use for it as an oven. It sounds like it would do a nice job tempering steel after the quench, but not get things hot enough for the quench. If it did, the wire shelves would sag. (They are wire, aren't they?) Solid (unperfed) steel sheet, not oven-ready, I'd guess. Plus no heater. All I got was the shell. I do have a little furnace which will get up to at least 1850F (in about an hour), with lots of insulation, and a working area about the size of a brick. It came with the heating elements, but no controller. I had a NOS Omega controller, sold as overrun from a project by someone on this newsgroup years ago, which I got "just in case". I had to hook it to a solid state relay to handle the current that the oven used, but it does a really nice job. Setting it for 1800F it goes up to about 1400, turns off for a while to see how much overshoot there is, then turns back on and eases its way up to the setpoint. It goes all of 1 degree F over temperature, nothing more. Just big enough to hammer out a block of katana steel, eh? [ ... ] Ouch! They aren't giving those away, are they? Nope -- but they were around $500-$900 in the late 1960s. which would be several K these days. Hamfests are better than eBay -- but you have to wait longer to find what you want. :-) I'm liking that new Chiwanese $50 p/s better already. I think that one with a poor photo was about $75.00 or so, which is pretty close to your $50.00. But Figure maybe $35.00 to $50.00 at the hamfest these days. Less if someone doesn't know about the sense jumpers on the back and thinks that it does not work (and is honest about it). :-) g Um, rivets aren't supposed to be removed, sir. g That means you usually have to support the engine/trans, then remove the xmember and about 400 other things to get at the item you need to replace. Lots of fun, that. Well ... I went through several web pages about how to change them (actually the bushings on the radius rods), and given the tools I had, the remove the rivets and put in the bolts fit better. Just getting a big enough socket inside the front coil spring was a nasty job, and I did not want to put that much torque on it without having a hydraulic lift. Jack stands are just not that steady, even with several extras. That's when you borrow your buddy's lift and do it overhead, while standing up. Much safer and easier. Shadetree's a bitch. I don't have a buddy with a lift. At least none close enough to make it worth while. I don't either, but there's a duplex up the street where an auto mech set up and he has a lift in his garage. I need to get to know him, see what kind of trades I could work out with him for some lift time. I miss not being able to check over my vehicles to catch things before they become a fatal problem. Twice, you've seemed to miss my dual point, seeing only one in the sentence. Should I have put it A) I need to get my tickee and B) go to the hamfests to find treasures (and pick brains)? Looking at the sentence again, I see what I missed. I was rather sleepy, and you did not call attention to the "and", which was lurking at one end of a line of text. Perhaps I would have done it as *and*. :-) I'll make it a point to determine the level of your awareness BEFORE I make the next post, Don. I had that same opposite drive 15 minutes each way, so when SKF took over Palomar Technology and combined entities elsewhere, I was ****ed. I've been self-employed ever since, though. That was when I took "discontinued service retirement" from the lab. They moved my job to Maryland, going the bad traffic direction (which they did not count), but a longer drive (all of one mile) which they *did* count into my eligibility for the (slightly) early retirement. However, the *real* reason was that I did not like the "vibes" in the interaction between different groups there -- not the cooperation which we had where I had been. I hear ya. I got the same vibes from SKF, but they weren't really the ones in charge. The larger company would have been pretty much calling the shots since we were moving in with them. We were the smaller of two companies and I was sure to be shoehorned somewhere I didn't like, working with people I didn't know or like, and that at the end of a far-too-long drive. None of that sat well with me. I've never had one of those corporate-friendly personality types. 2012. O.K. It should be good enough then. Not sure how the programs go -- it could be that they are like one of the ones at the practice sites. But it is good to get the feel for the exams so you are comfortable when the real ones come along. That they are. I believe it's a compilation from online sources ++. O.K. You're more used to getting up early than I am these days. :-) I am. I get up at 4 or 5am most days, even Sunday. g I'm in bed reading at 7pm some days, and turn the lights out at 10ish. Very different. My body has always wanted to be a late hours person, and once I retired, my body claimed its due. :-) I love the extreme quiet in the early morning. No phones, no parties, no (OK, fewer) dogs. As a little kid, I loved the noise and the sight of the bolts. I know some adults who can't stand the lighting and thunder. Most can't. I've always been a science buff and wild stuff thrills me. There aren't too many things more wild than lightning. Interesting. My wife has no problems with the thunder and lightning -- but our rent-a-daughter (really the daughter of a long time friend who sometimes stays with us) really does not like it at all. I think most people are just neutral about it, not caring either way and not interested in the power and majesty of these things. That's what I have trouble understanding. I don't understand the lack of curiosity/interest by most people, and I'm happy I have it. [ ... thundersnow ... ] Tends to happen only in certain weather conditions, usually a blizzard in this area. It is uncommon enough so the TV weather men make a big thing about it each time it happens. Probably about once every three years, here. Kinda like Sandy Eggo weathermen going nuts over red tides and grunion runs. Hmmm ... I thought that the red tides were an East Coast phenomenon. I know that we've had it in the Chesapeake, and off the coast of the Carolinas. Maybe a bit wider spread than I thought. As for grunion -- sounds more like a British name for an auto part. :-) Or a sound Brit trannies make when shifting gears? I find thunder and lightning fascinating, too. AFAIK, I've never been scared of it. Earthquakes are kinda cool, too. (Well, up to 4.5 is all I've felt.) I've only *noticed* one -- a couple of years ago towards central Virginia. It shook a few things off shelves up here, but no damage to the house. However, it brought the triangular brick part under the end of a roof toppling down on a bunch of cars in the parking lot a few miles way -- sort of variable how hard it hit. O.K. It aw in 2011, and was a 5.8 magnitude. Lots more damage near the epicenter. That's a pretty good sized jolt. I could tell that it was somewhat distant, because I first felt horizontal motion for several seconds, and then vertical, which felt a lot stronger. I got a vertical ripple here a few years ago when the quake hit in NorCal. I could hear it coming like an extremely fast freight train, then the windows on my right boomed, then a split second later the other side of the house boomed. We hopped a tenth of an inch, but no damage. That's the first time I've felt vertical earth oscillations, and it induced a very mild vertigo in me for a few seconds. That was new. I don't think I'd like a 10.5 much. You? The other I've been in, but did not notice directly, was in Guyaquil Ecuador. I woke up and heard voices out in the street (vendors) crying "terramoto" (earthquake), but the springing on the bed kept me from feeling it -- though it might have helped me wake up then. :-) Dad and I were on a guys-only trip to Mexico when I woke up one morning. I had never felt an earthquake and he asked if I'd felt the one at 4am. I was ****ed that I'd slept through my first one. He said it was about a 3.2 or so, nothing to write home about. I was 16, I think. I think that I was about 17, and pretty much the same feeling. That's during our Immortal stage, huh? g -- Try not to become a man of success but rather try to become a man of value. --Albert Einstein |
#43
Posted to rec.crafts.metalworking
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Uh Oh, metal related. Gluing glass to metal?
On 2013-09-19, Larry Jaques wrote:
On 18 Sep 2013 21:05:30 GMT, "DoN. Nichols" wrote: On 2013-09-18, Larry Jaques wrote: On 18 Sep 2013 04:22:37 GMT, "DoN. Nichols" wrote: [ ... ] We really should move this to private e-mail, though it is not nearly as far off topic by now as the political postings are. :-) My e-mail is sort-of spamproofed, but you can see how to fix it in my .sig at the bottom (if your newsreader doesn't hide it. :-) [ ... Crystal oven ... ] Mine's a bit larger. Roughly 14d x 18w x 20"t. There's a small padlock hasp on the side and 2 shelves in the middle. The heater was taken out before I got it, and there is a light bulb socket outside (lower right near the back) which let you know it was running. I put a piece of steel over the grommeted 3/4" hole on the top. O.K. An oven -- and likely a lab oven, but not what I would call a "crystal oven". (Perhaps the brand was "Crystal"? :-) Unlabeled. It had been used as a crystal baking oven by the eng dept. way back, hence the title. Have a look at eBay auction #111172480292 for an example of what I was talking about. Figure the diameter to be sort of between a 50 cent piece and an *old* silver dollar. Probably yours was for a very different style of crystal. :-) I keep legal papers, DVD backups, and a few coins in it. I do have a little furnace which will get up to at least 1850F (in about an hour), with lots of insulation, and a working area about the size of a brick. It came with the heating elements, but no controller. I had a NOS Omega controller, sold as overrun from a project by someone on this newsgroup years ago, which I got "just in case". I had to hook it to a solid state relay to handle the current that the oven used, but it does a really nice job. Setting it for 1800F it goes up to about 1400, turns off for a while to see how much overshoot there is, then turns back on and eases its way up to the setpoint. It goes all of 1 degree F over temperature, nothing more. Just big enough to hammer out a block of katana steel, eh? Well ... I guess that you could start with that much steel, but for the subsequent re-heatings, I don't think that it would hold the growing blade. :-) [ ... ] That's when you borrow your buddy's lift and do it overhead, while standing up. Much safer and easier. Shadetree's a bitch. I don't have a buddy with a lift. At least none close enough to make it worth while. I don't either, but there's a duplex up the street where an auto mech set up and he has a lift in his garage. I need to get to know him, see what kind of trades I could work out with him for some lift time. I miss not being able to check over my vehicles to catch things before they become a fatal problem. The priorities did not give me time to make friends with someone who had a lift. :-) (And the town probably would not allow a private lift out in the open. Twice, you've seemed to miss my dual point, seeing only one in the sentence. Should I have put it A) I need to get my tickee and B) go to the hamfests to find treasures (and pick brains)? Looking at the sentence again, I see what I missed. I was rather sleepy, and you did not call attention to the "and", which was lurking at one end of a line of text. Perhaps I would have done it as *and*. :-) I'll make it a point to determine the level of your awareness BEFORE I make the next post, Don. And -- I was too late last night to reply, and pretty late tonight, too. :-) [ ... ] retirement. However, the *real* reason was that I did not like the "vibes" in the interaction between different groups there -- not the cooperation which we had where I had been. I hear ya. I got the same vibes from SKF, but they weren't really the ones in charge. The larger company would have been pretty much calling the shots since we were moving in with them. We were the smaller of two companies and I was sure to be shoehorned somewhere I didn't like, working with people I didn't know or like, and that at the end of a far-too-long drive. None of that sat well with me. I've never had one of those corporate-friendly personality types. :-) 2012. O.K. It should be good enough then. Not sure how the programs go -- it could be that they are like one of the ones at the practice sites. But it is good to get the feel for the exams so you are comfortable when the real ones come along. That they are. I believe it's a compilation from online sources ++. O.K. [ ... ] Very different. My body has always wanted to be a late hours person, and once I retired, my body claimed its due. :-) I love the extreme quiet in the early morning. No phones, no parties, no (OK, fewer) dogs. You can get the same kind of quiet at about 1:00 AM or so -- if you aren't too near bars which stay open that late. :-) [ ... ] Most can't. I've always been a science buff and wild stuff thrills me. There aren't too many things more wild than lightning. Interesting. My wife has no problems with the thunder and lightning -- but our rent-a-daughter (really the daughter of a long time friend who sometimes stays with us) really does not like it at all. I think most people are just neutral about it, not caring either way and not interested in the power and majesty of these things. That's what I have trouble understanding. I don't understand the lack of curiosity/interest by most people, and I'm happy I have it. Indeed -- I'm half-way tempted to move back down to South Texas, where I can watch the thunderstorms approach from the distance. I was stationed in Arizona one summer for a communications experiment, and I saw a thunderstorm out a ways -- which didn't seem to be getting any closer. I got on my little 50cc motorcycle and putted out towards it, and found a neat line, wet on one side, dry on the other, crossing the road and staying put the whole time. [ ... ] As for grunion -- sounds more like a British name for an auto part. :-) Or a sound Brit trannies make when shifting gears? Especially when the synchronizer rings get worn. :-) I find thunder and lightning fascinating, too. AFAIK, I've never been scared of it. Earthquakes are kinda cool, too. (Well, up to 4.5 is all I've felt.) I've only *noticed* one -- a couple of years ago towards central Virginia. It shook a few things off shelves up here, but no damage to the house. However, it brought the triangular brick part under the end of a roof toppling down on a bunch of cars in the parking lot a few miles way -- sort of variable how hard it hit. O.K. It was in 2011, and was a 5.8 magnitude. Lots more damage near the epicenter. That's a pretty good sized jolt. Yep -- but something like 50 miles away, so we did not get that much. It was a small down over the epicenter which got rather messed up, and some nearer ones with lots of historical brick buildings which got rather badly damaged. I could tell that it was somewhat distant, because I first felt horizontal motion for several seconds, and then vertical, which felt a lot stronger. I got a vertical ripple here a few years ago when the quake hit in NorCal. I could hear it coming like an extremely fast freight train, then the windows on my right boomed, then a split second later the other side of the house boomed. We hopped a tenth of an inch, but no damage. That's the first time I've felt vertical earth oscillations, and it induced a very mild vertigo in me for a few seconds. That was new. I don't think I'd like a 10.5 much. You? No -- except perhaps to view it from a small airplane. :-) With the horizontal waves, I wasn't really sure that it was a 'quake, but when the vertical ones arrived, I was quite sure. If they had kept up for more than the few seconds, I would have made for downstairs and outdoors. :-) [ ... ] I think that I was about 17, and pretty much the same feeling. That's during our Immortal stage, huh? g Yep. Like the time a few years later when a group of us spent the night in the crater of a somewhat dormant volcano. :-) Enjoy, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#44
Posted to rec.crafts.metalworking
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Uh Oh, metal related. Gluing glass to metal?
On 21 Sep 2013 04:15:09 GMT, "DoN. Nichols"
wrote: On 2013-09-19, Larry Jaques wrote: On 18 Sep 2013 21:05:30 GMT, "DoN. Nichols" wrote: On 2013-09-18, Larry Jaques wrote: On 18 Sep 2013 04:22:37 GMT, "DoN. Nichols" wrote: [ ... ] We really should move this to private e-mail, though it is not nearly as far off topic by now as the political postings are. :-) My e-mail is sort-of spamproofed, but you can see how to fix it in my .sig at the bottom (if your newsreader doesn't hide it. :-) Yeah, let's wrap it up today. [ ... Crystal oven ... ] Mine's a bit larger. Roughly 14d x 18w x 20"t. There's a small padlock hasp on the side and 2 shelves in the middle. The heater was taken out before I got it, and there is a light bulb socket outside (lower right near the back) which let you know it was running. I put a piece of steel over the grommeted 3/4" hole on the top. O.K. An oven -- and likely a lab oven, but not what I would call a "crystal oven". (Perhaps the brand was "Crystal"? :-) Unlabeled. It had been used as a crystal baking oven by the eng dept. way back, hence the title. Have a look at eBay auction #111172480292 for an example of what I was talking about. Figure the diameter to be sort of between a 50 cent piece and an *old* silver dollar. The crystals we were using then (for our non-freq-synthesized manpack radios) were about 1/8" thick by 1/2" wide by 3/4" tall with two 0.040 leads (SWAG) I did QA work so that was _all_ beyond me then (and is only 60% beyond me now I don't recall the freq at all. Probably yours was for a very different style of crystal. :-) Or large production runs? Just big enough to hammer out a block of katana steel, eh? Well ... I guess that you could start with that much steel, but for the subsequent re-heatings, I don't think that it would hold the growing blade. :-) Pop the end off, wot? [ ... ] That's when you borrow your buddy's lift and do it overhead, while standing up. Much safer and easier. Shadetree's a bitch. I don't have a buddy with a lift. At least none close enough to make it worth while. I don't either, but there's a duplex up the street where an auto mech set up and he has a lift in his garage. I need to get to know him, see what kind of trades I could work out with him for some lift time. I miss not being able to check over my vehicles to catch things before they become a fatal problem. The priorities did not give me time to make friends with someone who had a lift. :-) Isn't that the way it always turns out? When things break down in your driveway, you thank your lucky stars you didn't have to pay for a $600 tow. (I now have towing insurance through USAA for $16/yr, and am thankful for never having needed it.) (And the town probably would not allow a private lift out in the open. Damned bureaucrats. Very different. My body has always wanted to be a late hours person, and once I retired, my body claimed its due. :-) I love the extreme quiet in the early morning. No phones, no parties, no (OK, fewer) dogs. You can get the same kind of quiet at about 1:00 AM or so -- if you aren't too near bars which stay open that late. :-) Dogs are still up then, though, especially around bars. Most can't. I've always been a science buff and wild stuff thrills me. There aren't too many things more wild than lightning. Interesting. My wife has no problems with the thunder and lightning -- but our rent-a-daughter (really the daughter of a long time friend who sometimes stays with us) really does not like it at all. I think most people are just neutral about it, not caring either way and not interested in the power and majesty of these things. That's what I have trouble understanding. I don't understand the lack of curiosity/interest by most people, and I'm happy I have it. Indeed -- I'm half-way tempted to move back down to South Texas, where I can watch the thunderstorms approach from the distance. I see that you have some deeply masochistic tendencies, sir. As for grunion -- sounds more like a British name for an auto part. :-) Or a sound Brit trannies make when shifting gears? Especially when the synchronizer rings get worn. :-) Yeah, on the few Brit trannies which had them. I remember learning my Corvair engine and tranny mesh speeds and could up- and downshift without the clutch for all but complete stops. Ah, when we were young... I could tell that it was somewhat distant, because I first felt horizontal motion for several seconds, and then vertical, which felt a lot stronger. I got a vertical ripple here a few years ago when the quake hit in NorCal. I could hear it coming like an extremely fast freight train, then the windows on my right boomed, then a split second later the other side of the house boomed. We hopped a tenth of an inch, but no damage. That's the first time I've felt vertical earth oscillations, and it induced a very mild vertigo in me for a few seconds. That was new. I don't think I'd like a 10.5 much. You? No -- except perhaps to view it from a small airplane. :-) Or as a movie. With the horizontal waves, I wasn't really sure that it was a 'quake, but when the vertical ones arrived, I was quite sure. If they had kept up for more than the few seconds, I would have made for downstairs and outdoors. :-) I usually just grin and freeze, but would crawl toward daylight if possible if the fun just kept on coming. I wonder how much difference there is in damage to the newer metal-studded buildings vs the old stick-built homes after an earthquake. I'll have to Google that. Oops, sorry, I got on topic for a minute. [ ... ] I think that I was about 17, and pretty much the same feeling. That's during our Immortal stage, huh? g Yep. Like the time a few years later when a group of us spent the night in the crater of a somewhat dormant volcano. :-) I had an eerie day the day the movie Volcano came out. I watched it and got goose bumps all over my body when I saw San Vicente Blvd in Beverly Hills. I had just been there the day before, working on a bone densitometer for some Russian doctors, a block from that very intersection where they demoed the building to redirect the flow of lava. It was the first time I'd ever instantly identified with a location shot in a movie. -- Try not to become a man of success but rather try to become a man of value. --Albert Einstein |
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