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#41
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
In article ,
Red Green wrote: I have 9 screws here. Had to have them taken out of my ankle because when I wore hightop boots the heads would hurt like hell being just below the surface. Am I sittin' on a gold mine here? Red... Hell yes. Shine 'em up and put 'em on ebay. Let's find out the resale value of those puppies. |
#43
Posted to alt.home.repair
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Screwing a broken ankle
On Nov 2, 4:07 pm, Smitty Two wrote:
In article , AZ Nomad wrote: On Fri, 02 Nov 2007 14:49:50 -0400, Dan Espen wrote: Smitty Two writes: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? Sometimes Google satisfies, sometimes it doesn't. I couldn't verify the cost of the screws you indicate above but I did see some of the screws are stainless steel and some are titanium. $1800 does seem a bit steep, even for titanium. I'd guess there's a very low volume and a lot of inspections, including xrays of the part involved though. I'd like to see smitty get his ankle smashed into a thousand pieces and then have his doc use some bigbox hardware store home construction screws. After all, all screws are the same. I find it curious that you insist on being so irrational. When did I say that all screws were the same? I didn't attack or insult you, all I did was ask you to substantiate your claim that a surgical screw is as different from a hardware store screw as a space rocket is from a bottle rocket. You're the one who claimed to have seen a surgical screw, and said it was completely different. If you want me to believe that, you're going to have to tell me in what ways it's different. There are one cent screws and there are $20 screws. Have you ever made a screw? Seen one being made? Now tell me what it is, exactly, that makes a surgical screw worth $1800, outside of all the bureaucracy that's involved, as others pointed out. Incidentally, my mom shattered all the bones in her ankle in 1953. Doctors said she'd never walk again, which she did, without the slightest limp, for another forty years. I'm guessing there were no $1800 screws involved, even adjusted for inflation.- Hide quoted text - - Show quoted text - I'm not taking sides here, but if you want to see the difference between surgical screw and hardware store screw, scroll down to the Screw section of this site. Just like there are many variations of hardware store screws, there are many variations of surgical screws. I'm guessing once we start talking about hollow-shaft screws, we are talking about considerable added expense. http://www.rad.washington.edu/mskboo...chardware.html |
#44
Posted to alt.home.repair
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Screwing a broken ankle
On Nov 2, 4:27 pm, DerbyDad03 wrote:
On Nov 2, 4:07 pm, Smitty Two wrote: In article , AZ Nomad wrote: On Fri, 02 Nov 2007 14:49:50 -0400, Dan Espen wrote: Smitty Two writes: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? Sometimes Google satisfies, sometimes it doesn't. I couldn't verify the cost of the screws you indicate above but I did see some of the screws are stainless steel and some are titanium. $1800 does seem a bit steep, even for titanium. I'd guess there's a very low volume and a lot of inspections, including xrays of the part involved though. I'd like to see smitty get his ankle smashed into a thousand pieces and then have his doc use some bigbox hardware store home construction screws. After all, all screws are the same. I find it curious that you insist on being so irrational. When did I say that all screws were the same? I didn't attack or insult you, all I did was ask you to substantiate your claim that a surgical screw is as different from a hardware store screw as a space rocket is from a bottle rocket. You're the one who claimed to have seen a surgical screw, and said it was completely different. If you want me to believe that, you're going to have to tell me in what ways it's different. There are one cent screws and there are $20 screws. Have you ever made a screw? Seen one being made? Now tell me what it is, exactly, that makes a surgical screw worth $1800, outside of all the bureaucracy that's involved, as others pointed out. Incidentally, my mom shattered all the bones in her ankle in 1953. Doctors said she'd never walk again, which she did, without the slightest limp, for another forty years. I'm guessing there were no $1800 screws involved, even adjusted for inflation.- Hide quoted text - - Show quoted text - I'm not taking sides here, but if you want to see the difference between surgical screw and hardware store screw, scroll down to the Screw section of this site. Just like there are many variations of hardware store screws, there are many variations of surgical screws. I'm guessing once we start talking about hollow-shaft screws, we are talking about considerable added expense. http://www.rad.washington.edu/mskboo...hardware.html- Hide quoted text - - Show quoted text - I scanned the site I mentioned earlier and went past the Screw section, into the Plate section to find another screw that could be pretty expensive. Here's the text that's under the pictu ....the medial malleolar fracture above is held together by one of these screws, made of a radiolucent polycarbonate material, which is designed to eventually be absorbed by the body -- this type of screw is known locally as "stealth hardware" I'm guessing Lowes doesn't carry these in those little drawers. ;-) http://www.rad.washington.edu/mskboo...chardware.html |
#45
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
In article ,
Red Green wrote: I dunno. But whatever they use to hold those shuttle tiles on I wouldn't use on the chair. errrr.....shelf...wrong thread. And you with the chair glue Q, don't use Shuttle tile glue :-) Refrigerator, chair, what's the difference? The important thing is you have a great product marketing idea right the NEW! Shuttle Glue! Guaranteed to work on many terrestrial applications.* (*not recommended for re-entry) |
#46
Posted to alt.home.repair
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Screwing a broken ankle
In article . com, DerbyDad03 wrote:
...the medial malleolar fracture above is held together by one of these screws, made of a radiolucent polycarbonate material, which is designed to eventually be absorbed by the body -- this type of screw is known locally as "stealth hardware" I'm guessing Lowes doesn't carry these in those little drawers. ;-) And even if they did, how would one go about picking out a "stealth" screw? The computer inventory system says we have 27,562 on hand... ;-) -- |~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~| | Malcolm Hoar "The more I practice, the luckier I get". | | Gary Player. | | http://www.malch.com/ Shpx gur PQN. | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~ |
#47
Posted to alt.home.repair
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Screwing a broken ankle
Smitty Two wrote in
news In article , AZ Nomad wrote: On Fri, 02 Nov 2007 14:49:50 -0400, Dan Espen wrote: Smitty Two writes: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? Sometimes Google satisfies, sometimes it doesn't. I couldn't verify the cost of the screws you indicate above but I did see some of the screws are stainless steel and some are titanium. $1800 does seem a bit steep, even for titanium. I'd guess there's a very low volume and a lot of inspections, including xrays of the part involved though. I'd like to see smitty get his ankle smashed into a thousand pieces and then have his doc use some bigbox hardware store home construction screws. After all, all screws are the same. I find it curious that you insist on being so irrational. When did I say that all screws were the same? I didn't attack or insult you, all I did was ask you to substantiate your claim that a surgical screw is as different from a hardware store screw as a space rocket is from a bottle rocket. You're the one who claimed to have seen a surgical screw, and said it was completely different. If you want me to believe that, you're going to have to tell me in what ways it's different. There are one cent screws and there are $20 screws. Have you ever made a screw? Seen one being made? Now tell me what it is, exactly, that makes a surgical screw worth $1800, outside of all the bureaucracy that's involved, as others pointed out. Incidentally, my mom shattered all the bones in her ankle in 1953. Doctors said she'd never walk again, which she did, without the slightest limp, for another forty years. I'm guessing there were no $1800 screws involved, even adjusted for inflation. I don't walk with a limp either. My ankle only hurts half the time - every other step. |
#48
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
AZ Nomad wrote in
: On Fri, 02 Nov 2007 14:49:50 -0400, Dan Espen wrote: Smitty Two writes: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? Sometimes Google satisfies, sometimes it doesn't. I couldn't verify the cost of the screws you indicate above but I did see some of the screws are stainless steel and some are titanium. $1800 does seem a bit steep, even for titanium. I'd guess there's a very low volume and a lot of inspections, including xrays of the part involved though. I'd like to see smitty get his ankle smashed into a thousand pieces and then have his doc use some bigbox hardware store home construction screws. After all, all screws are the same. LOL! Well, the drill the doc was using back then sure looked like some old Milwaukee he picked up at a flea market. Fortunately I didn't see a caulk gun with liquid nails around...could have been out of view though. |
#49
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
Smitty Two wrote:
In article , AZ Nomad wrote: On Thu, 01 Nov 2007 21:13:26 -0700, Smitty Two wrote: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? I've seen used medical screws. There isn't much similarity except the basic function. Kind of like comparing a bottle rocket with a saturn booster. So a medical screw is not a piece of metal that's been machined? What is it, then? Oh, maybe a couple of hundred bucks per screw is plausible, due to extremely tight QC requirements on the alloys used, the machining quality, and the FDA-required audit trail (all implantable medical devices are trackable from manufacture to disposal, IIRC). But the headroom above that is 'what the market will bear', said market being the insurance companies, and the end user seldom or ever sees the charged price, so they don't quibble. aem sends... |
#50
Posted to alt.home.repair
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Screwing a broken ankle
In article . com,
DerbyDad03 wrote: On Nov 2, 4:27 pm, DerbyDad03 wrote: On Nov 2, 4:07 pm, Smitty Two wrote: In article , AZ Nomad wrote: On Fri, 02 Nov 2007 14:49:50 -0400, Dan Espen wrote: Smitty Two writes: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? Sometimes Google satisfies, sometimes it doesn't. I couldn't verify the cost of the screws you indicate above but I did see some of the screws are stainless steel and some are titanium. $1800 does seem a bit steep, even for titanium. I'd guess there's a very low volume and a lot of inspections, including xrays of the part involved though. I'd like to see smitty get his ankle smashed into a thousand pieces and then have his doc use some bigbox hardware store home construction screws. After all, all screws are the same. I find it curious that you insist on being so irrational. When did I say that all screws were the same? I didn't attack or insult you, all I did was ask you to substantiate your claim that a surgical screw is as different from a hardware store screw as a space rocket is from a bottle rocket. You're the one who claimed to have seen a surgical screw, and said it was completely different. If you want me to believe that, you're going to have to tell me in what ways it's different. There are one cent screws and there are $20 screws. Have you ever made a screw? Seen one being made? Now tell me what it is, exactly, that makes a surgical screw worth $1800, outside of all the bureaucracy that's involved, as others pointed out. Incidentally, my mom shattered all the bones in her ankle in 1953. Doctors said she'd never walk again, which she did, without the slightest limp, for another forty years. I'm guessing there were no $1800 screws involved, even adjusted for inflation.- Hide quoted text - - Show quoted text - I'm not taking sides here, but if you want to see the difference between surgical screw and hardware store screw, scroll down to the Screw section of this site. Just like there are many variations of hardware store screws, there are many variations of surgical screws. I'm guessing once we start talking about hollow-shaft screws, we are talking about considerable added expense. http://www.rad.washington.edu/mskboo...hardware.html- Hide quoted text - - Show quoted text - I scanned the site I mentioned earlier and went past the Screw section, into the Plate section to find another screw that could be pretty expensive. Here's the text that's under the pictu ...the medial malleolar fracture above is held together by one of these screws, made of a radiolucent polycarbonate material, which is designed to eventually be absorbed by the body -- this type of screw is known locally as "stealth hardware" I'm guessing Lowes doesn't carry these in those little drawers. ;-) http://www.rad.washington.edu/mskboo...chardware.html Interesting link, thanks. I like the design of the Herbert screw. Very clever. Nothing too difficult about making any of those, though. Drilling longitudinal holes is easy enough, and as far as the "stealth" screw, I wouldn't classify polycarbonate (the stuff of throw-away picnic glasses) as Unobtainium. I didn't see any notes on what metal(s) were used on the other ones. I also found it surprising that in some cases, drilling a pilot hole for the screw can weaken the bone by as much as 90%. |
#51
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
Jim Yanik wrote:
My wife put 2 cartons of milk on the same shelf and that proved to be too much weight for it and both back corners snapped off in almost [quoted text clipped - 13 lines] all the parts together. It's been a few years without failure. MLD Regarding Gorilla glue, I use it for everything. It is the best glue ever. The secret is usng Just enough. The popsicle sticks are a neat trick. When I can, I use string or cording. Iie the ends of the string together when wet. (It will be stromger when dryas it shrinks.) Make a tight knot. Wrap the string around item that needs to be clamped(for gluing). Then take a stick/pencil/dowel, loop string around such then start twisting the stick/pencil dowel until tight. Then tape stick, etc. solid or secure pencil/stick on itself or wedge it so it remains tight. It works wonders and is cheaper than clamps. I had a plastic clamp for a clip-on fan break,and I used epoxy and popsicle sticks to reinforce it;you have to let the epoxy cure for a week or two before putting it under stress,to get it's full strength. The clamp has a very strong spring,and it's held up for about two years now. I used RAKA boat building epoxy and fumed silica thickener. I tried J- B Weld before that,but it didn't hold up very long.It seems to be a softer epoxy. System Three or West System epoxy would do just as well as the RAKA. The popsicle sticks are stiff and give more strength than a paper clip will,and epoxy bonds to it better. Polyurethane glues are crap.(Gorilla Glue)They also foam up,expand and make a mess.For wood,I guess they are OK. -- Betty Boop |
#52
Posted to alt.home.repair
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Screwing a broken ankle
On Nov 2, 8:10 pm, Smitty Two wrote:
In article . com, DerbyDad03 wrote: On Nov 2, 4:27 pm, DerbyDad03 wrote: On Nov 2, 4:07 pm, Smitty Two wrote: In article , AZ Nomad wrote: On Fri, 02 Nov 2007 14:49:50 -0400, Dan Espen wrote: Smitty Two writes: In article , (Malcolm Hoar) wrote: In article , Smitty Two wrote: Yeah, but it does work well on skin! I recently discovered how well when my 7 year old fell and made a nice gash on his nose that I thought would need stitches. Off to the E.R. where they stuck him back together with (medical grade) superglue. Within about 10 days the would healed perfectly with no trace of a scar. The Doc was right -- much better than stitches! What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Well, pretty much. Of course, the vendor probably had to spend many millions getting FDA approval and satisfying all kinds of requirements relating to manufacturing, distribution, packaging, advertising and everything else. Yeah. I dated an orthopedic surgeon for a while, and she swore that the bone screws cost $1800 per copy. I also know, first hand, how screws are made. Anyone wanna pony up some venture capital? Sometimes Google satisfies, sometimes it doesn't. I couldn't verify the cost of the screws you indicate above but I did see some of the screws are stainless steel and some are titanium. $1800 does seem a bit steep, even for titanium. I'd guess there's a very low volume and a lot of inspections, including xrays of the part involved though. I'd like to see smitty get his ankle smashed into a thousand pieces and then have his doc use some bigbox hardware store home construction screws. After all, all screws are the same. I find it curious that you insist on being so irrational. When did I say that all screws were the same? I didn't attack or insult you, all I did was ask you to substantiate your claim that a surgical screw is as different from a hardware store screw as a space rocket is from a bottle rocket. You're the one who claimed to have seen a surgical screw, and said it was completely different. If you want me to believe that, you're going to have to tell me in what ways it's different. There are one cent screws and there are $20 screws. Have you ever made a screw? Seen one being made? Now tell me what it is, exactly, that makes a surgical screw worth $1800, outside of all the bureaucracy that's involved, as others pointed out. Incidentally, my mom shattered all the bones in her ankle in 1953. Doctors said she'd never walk again, which she did, without the slightest limp, for another forty years. I'm guessing there were no $1800 screws involved, even adjusted for inflation.- Hide quoted text - - Show quoted text - I'm not taking sides here, but if you want to see the difference between surgical screw and hardware store screw, scroll down to the Screw section of this site. Just like there are many variations of hardware store screws, there are many variations of surgical screws. I'm guessing once we start talking about hollow-shaft screws, we are talking about considerable added expense. http://www.rad.washington.edu/mskboo...ware.html-Hide quoted text - - Show quoted text - I scanned the site I mentioned earlier and went past the Screw section, into the Plate section to find another screw that could be pretty expensive. Here's the text that's under the pictu ...the medial malleolar fracture above is held together by one of these screws, made of a radiolucent polycarbonate material, which is designed to eventually be absorbed by the body -- this type of screw is known locally as "stealth hardware" I'm guessing Lowes doesn't carry these in those little drawers. ;-) http://www.rad.washington.edu/mskboo...chardware.html Interesting link, thanks. I like the design of the Herbert screw. Very clever. Nothing too difficult about making any of those, though. Drilling longitudinal holes is easy enough, and as far as the "stealth" screw, I wouldn't classify polycarbonate (the stuff of throw-away picnic glasses) as Unobtainium. I didn't see any notes on what metal(s) were used on the other ones. I also found it surprising that in some cases, drilling a pilot hole for the screw can weaken the bone by as much as 90%.- Hide quoted text - - Show quoted text - I also found it surprising that in some cases, drilling a pilot hole for the screw can weaken the bone by as much as 90% Without any context, that statistic doesn't tell us much. They can say that in "some cases" there's a 90% weakening, even if 99.99% of the pilot holes only weaken the bone by 10%. All you need is a few cases at 90% and you can make an "in some cases" claim sound frightening. I was watching CNN the other day and they were talking about the huge disparity in death sentences given to one race over another. However, they never gave any statistics related to the number of capital crimes committed by either race. I'm not saying there isn't a disparity, but how can I tell if the reported ratio of means anything unless they also tell me the ratio of crimes committed by the races involved? Statistics only have meaning when you know the full story behind the data. |
#53
Posted to alt.home.repair
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Screwing a broken ankle
In article . com,
DerbyDad03 wrote: I also found it surprising that in some cases, drilling a pilot hole for the screw can weaken the bone by as much as 90% Without any context, that statistic doesn't tell us much. They can say that in "some cases" there's a 90% weakening, even if 99.99% of the pilot holes only weaken the bone by 10%. All you need is a few cases at 90% and you can make an "in some cases" claim sound frightening. I was watching CNN the other day and they were talking about the huge disparity in death sentences given to one race over another. However, they never gave any statistics related to the number of capital crimes committed by either race. I'm not saying there isn't a disparity, but how can I tell if the reported ratio of means anything unless they also tell me the ratio of crimes committed by the races involved? Statistics only have meaning when you know the full story behind the data. I'm with you there. Nothing annoys me more than statistics divorced from context. But hey, it was *your* source! FWIW, here's the sentence, which might not give the number teeth, but maybe enough gum to chew oatmeal. At least the surgeon should have a vague idea that drilling holes can be detrimental as well as beneficial. "One final word on screws: in order to use them, you have to make a screw hole in the bone or in the hardware that uses them. This is of note because screw holes weaken whatever material they pass through. I have read biomechanical estimates that one screw hole passing through both cortices of a femoral shaft will weaken that femur by 90 % to some types of stress." |
#54
Posted to alt.home.repair
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Screwing a broken ankle
On Nov 3, 12:56 am, Smitty Two wrote:
In article . com, DerbyDad03 wrote: I also found it surprising that in some cases, drilling a pilot hole for the screw can weaken the bone by as much as 90% Without any context, that statistic doesn't tell us much. They can say that in "some cases" there's a 90% weakening, even if 99.99% of the pilot holes only weaken the bone by 10%. All you need is a few cases at 90% and you can make an "in some cases" claim sound frightening. I was watching CNN the other day and they were talking about the huge disparity in death sentences given to one race over another. However, they never gave any statistics related to the number of capital crimes committed by either race. I'm not saying there isn't a disparity, but how can I tell if the reported ratio of means anything unless they also tell me the ratio of crimes committed by the races involved? Statistics only have meaning when you know the full story behind the data. I'm with you there. Nothing annoys me more than statistics divorced from context. But hey, it was *your* source! FWIW, here's the sentence, which might not give the number teeth, but maybe enough gum to chew oatmeal. At least the surgeon should have a vague idea that drilling holes can be detrimental as well as beneficial. "One final word on screws: in order to use them, you have to make a screw hole in the bone or in the hardware that uses them. This is of note because screw holes weaken whatever material they pass through. I have read biomechanical estimates that one screw hole passing through both cortices of a femoral shaft will weaken that femur by 90 % to some types of stress."- Hide quoted text - - Show quoted text - But hey, it was *your* source! It was my source for the difference between a hardware store screw and a surgical screw. Any other data culled from that site becomes the responsibility of the culler. ;-) |
#55
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
According to Smitty Two :
What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Medical grade CA is a different formulation with somewhat more high grade component chemicals. This shouldn't be a surprise - dimestore grade CA doesn't perform nearly as well as even "Hot Stuff" does. According to http://en.wikipedia.org/wiki/Cyanoacrylate, most regular CA glue is methyl-2-cyanoacrylate, which degrades fairly quickly in contact with human tissue and produces formaldehyde. Which is a pretty strong irritant. Medical CA is 2-octyl cyanoacrylate which degrades _much_ slower, and won't produce tissue irritation. The FDA has only approved 2-octyl cyanoacrylate for medical use. -- Chris Lewis, Age and Treachery will Triumph over Youth and Skill It's not just anyone who gets a Starship Cruiser class named after them. |
#56
Posted to alt.home.repair
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Glueing a broken plastic refrigerator shelf
According to larry moe 'n curly :
Joe wrote: My wife put 2 cartons of milk on the same shelf and that proved to be too much weight for it and both back corners snapped off in almost identical pieces. I've never had success gluing two pieces of plastic together to support weight but I'd like to try something different and see if it works. I'm going to take my Dremel and drill about 6 holes in each side of the pieces to be joined. Then I'm going to insert pieces of a paper clip into each hole to act as reinforcement for the glue to adhere to much in the same way rebar works in cement. Has anyone had any success with this? I'm thinking if nothing else it will increase the surface area of the connection. Any hints on making it work better? I'm going to use Gorilla Glue to join the pieces because it will expand into the holes Aren't most plastic pieces inside refrigerators made of PVC? If so, you want to use solvent, not glue, to fix them. Acetone or laquer thinner will work, but hobby shops and electronics supplies. have stuff made especially for gluing plastic models and TV cabinets. Acetone doesn't work that well on PVC. PVC glue has small quantities of acetone, but the main ingredients is MEK, Tetrahydrofuran, PVC resin and some other solvents. Model airplane glue is acetone based aimed for use on polystyrene. Laquer thinner is largely MEK I think, but it's not designed as a glue, it'll be messy, and glue joints probably brittle because it has no "body" to it. Best way to glue PVC is PVC pipe glue. I've done some major repairs to ABS-based devices using ABS pipe glue (rebuilt a leaf blower after the impeller came apart and demolished the blower housing. Bought a new impeller (no way a glued one was going to balance let alone stay together, but the housing was pieced back together). I'm sure that PVC glue will work as well on PVC. Throwing scrap bits of PVC in as reinforcements will help too. -- Chris Lewis, Age and Treachery will Triumph over Youth and Skill It's not just anyone who gets a Starship Cruiser class named after them. |
#57
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Glueing a broken plastic refrigerator shelf
In article ,
(Chris Lewis) wrote: According to Smitty Two : What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Medical grade CA is a different formulation with somewhat more high grade component chemicals. This shouldn't be a surprise - dimestore grade CA doesn't perform nearly as well as even "Hot Stuff" does. According to http://en.wikipedia.org/wiki/Cyanoacrylate, most regular CA glue is methyl-2-cyanoacrylate, which degrades fairly quickly in contact with human tissue and produces formaldehyde. Which is a pretty strong irritant. Medical CA is 2-octyl cyanoacrylate which degrades _much_ slower, and won't produce tissue irritation. The FDA has only approved 2-octyl cyanoacrylate for medical use. Interesting article, thanks. We use hot stuff for a lot of things around the shop, including cuts. I didn't realize there was a difference between brands, other than various viscosity formulations. |
#58
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Glueing a broken plastic refrigerator shelf
Chris Lewis wrote:
According to Smitty Two : What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Medical grade CA is a different formulation with somewhat more high grade component chemicals. This shouldn't be a surprise - dimestore grade CA doesn't perform nearly as well as even "Hot Stuff" does. According to http://en.wikipedia.org/wiki/Cyanoacrylate, most regular CA glue is methyl-2-cyanoacrylate, which degrades fairly quickly in contact with human tissue and produces formaldehyde. Which is a pretty strong irritant. Medical CA is 2-octyl cyanoacrylate which degrades _much_ slower, and won't produce tissue irritation. The FDA has only approved 2-octyl cyanoacrylate for medical use. Shrug. I use the civilian, non-medical-rated stuff on cracked and split fingernails, and even on the occasional paper cut, on a routine basis. (You know, like when you get a cut beside your nail, so whenever you stick that hand in your pocket, the cut catches, and you scream in pain? CA works great to keep those sealed.) aem sends... |
#59
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Glueing a broken plastic refrigerator shelf
According to Smitty Two :
I wrote in article , The FDA has only approved 2-octyl cyanoacrylate for medical use. Interesting article, thanks. We use hot stuff for a lot of things around the shop, including cuts. I didn't realize there was a difference between brands, other than various viscosity formulations. I've been finding the cheap stuff often doesn't bond very well, while Hot Stuff does what we want all the time. I tend to think of CA (even Hot Stuff) only as a temporary glue for the stuff we do (eg: model and high power rocketry). Good for (some) quick field repairs, or tacking a part so that a slow-set glue can cure, but it doesn't put up with temperature extremes or dampness that well, and it's not that strong compared to a good epoxy or even yellow/white glue. On the materials we work with of course... (paper, cardboard, fiberglass, aluminum). It does have one property that's highly prized in rocketry - being very thin, it'll soak in and reinforce cardboard edges after they start getting banged up. I'm sure Hot Stuff is fine for small cuts - the amount of formaldehyde would be quite small. However, formaldehyde _is_ nasty stuff and an allergic sensitizer, and if you were dealing with the sizes of incisions/wounds that surgeons would, it would begin to matter quite a bit. -- Chris Lewis, Age and Treachery will Triumph over Youth and Skill It's not just anyone who gets a Starship Cruiser class named after them. |
#60
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Glueing a broken plastic refrigerator shelf
On Nov 3, 11:42 pm, aemeijers wrote:
Chris Lewis wrote: According to Smitty Two : What's medical grade CA? Is that $3 dimestore glue that's been repackaged and sold for $300? The standard stuff you have around the house works great for wounds. Medical grade CA is a different formulation with somewhat more high grade component chemicals. This shouldn't be a surprise - dimestore grade CA doesn't perform nearly as well as even "Hot Stuff" does. According tohttp://en.wikipedia.org/wiki/Cyanoacrylate, most regular CA glue is methyl-2-cyanoacrylate, which degrades fairly quickly in contact with human tissue and produces formaldehyde. Which is a pretty strong irritant. Medical CA is 2-octyl cyanoacrylate which degrades _much_ slower, and won't produce tissue irritation. The FDA has only approved 2-octyl cyanoacrylate for medical use. Shrug. I use the civilian, non-medical-rated stuff on cracked and split fingernails, and even on the occasional paper cut, on a routine basis. (You know, like when you get a cut beside your nail, so whenever you stick that hand in your pocket, the cut catches, and you scream in pain? CA works great to keep those sealed.) aem sends...- Hide quoted text - - Show quoted text - For the OP original question, while at Home Depot, I found they have a super glue made by locktite that specifically for plasitcs. I don't know how much better or different it may be thqn std crazyt glue, but that's what I went with. I just repaired my refrig shelf foot with it. It cost about $3 and is a two part system. First you apply some kind of activator to both surfaces, which goes on with a small magic marker type device. Then you apply the glue to one surface and hold together for 30 secs. A lot of this depends of course on where the break is. In my case, it's on one of the 4 feet that holds it, but it winds up with most of the load pressing down onto the crack faces as opposed to shearing force which would cause the crack surfaces to try to move against each other. Hopefully it will hold, I'll let you know if it falls apart. |
#61
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Glueing a broken plastic refrigerator shelf
replying to MLD, Asiangem wrote:
MLD wrote: "Joe" wrote in message ups.com... Different product (soap dish) I cemented paper clips under and across the broken pieces. I used Phenoseal ( great adhesive caulking) to put all the parts together. It's been a few years without failure. MLD I used Sugru to fix my refrigerator door. Sugru is the worlds first mouldable glue that turns into rubber glue It all started with an idea and a small team of product designers and material scientists here in London. Their dream is to make fixing, modifying and making things easy and fun for anyone, and Sugru is our solution. Their patented silicone technology is unique. Out of the pack, Sugru feels like play-dough, and it's that easy to use too. It bonds to almost any other material and cures just by exposing it to air. Its durable cured properties mean it'll stay strong and securely bonded anywhere from the freezer to a steamy hot shower, from the home to the great outdoors. https://sugru.com/guides/how-to-fix-...ing-with-sugru I do not sell the product or have any connection to the product - just that it worked to fix a hole and molded an hook for my shelf which was in the inside of the door. -- |
#62
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Glueing a broken plastic refrigerator shelf
Kal,
Did you glue on the shelf supports or the shelf? Dave M. |
#63
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Glueing a broken plastic refrigerator shelf
Asiangem wrote:
I do not sell the product or have any connection to the product - just that it worked to fix a hole and molded an hook for my shelf which was in the inside of the door. Worsk for me. |
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