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#1
Posted to rec.woodworking
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How dangerous are lathes?
I have just finished a bowl turning course; my first lathe work. The
instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. The main problem seems to be the work breaking apart at high speeds. Does that happen much? A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. |
#2
Posted to rec.woodworking
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How dangerous are lathes?
"Toller" wrote in message ... I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. He's got to be a complete moron to make such an irresponsible and inaccurate statement. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. Probably because lathes are not as widely used as table saws, bandsaws, jointers, etc. The main problem seems to be the work breaking apart at high speeds. Does that happen much? Yes, especially with inexperienced turners. Sufficiently heavy catches can also break tool rests and steel turning tools. Other dangers include loose clothing, jewelry, and long hair getting caught on the workpiece or spindle. A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? Even though it's fairly thin, the shield has a radius to it, so a flying object is more likely to be deflected away than result in a full-force impact as a flat surface would. I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. I personally find dust masks annoying and don't use them much, but I often pay for it with a couple hours of coughing and sneezing afterwards. Other turners take dust more seriously and wear breathing apparatus resembling full hazmat suits. B. |
#3
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How dangerous are lathes?
There's a maxim I've heard: "Never chuck anything on a lathe that you
wouldn't want to get hit in the head by", or something like that. Those thin faceshields can do a pretty fair job of deflecting/dissipating most of the energy of a thrown workpiece, but I still wear safety glasses under my shield. Call me chicken. Tom Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. The main problem seems to be the work breaking apart at high speeds. Does that happen much? A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. |
#4
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How dangerous are lathes?
Toller wrote:
I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. snip Pardon me for being so gross, but the guy is a ****ing idiot. You are working around rotating machinery. A little common sense goes a long way. No ties, jewelery, loose clothing, exposed beards or long hair that is not tucked into a net. Follow Norm's advice, wear a full face mask. They are low cost and should be in stock at your local WW Grainger. Lew |
#6
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How dangerous are lathes?
"Toller" wrote in
: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. snip I've been working with wood for my whole life, and seriously, as in furniture making, for the last six or seven years, as a hobby. I bought a lathe 18 months ago, and have turned some interesting pieces, bowls, etc. up to 14" in size. I had a nasty catch a couple of days after Labor Day, and the scraper managed to catch me in the left hand, at the base of the second finger. I wore a major bandage for 6 weeks, and only in the last couple of weeks have I been comfortable wearing my wedding ring again. The scar doesn't show too badly. Nobody ever gets hurt, but I did. And I was very lucky that's all that happened. I nearly passed out from the shock. BTW, the bowl is still mounted on the lathe. It's finished now, but it's still out there. Be careful. Patriarch |
#7
Posted to rec.woodworking
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How dangerous are lathes?
Toller, head on over to rec.crafts.woodturning and check out the group. More than you could imagine about woodturning over there, and some really stellar turners. Many are very generous with their time and ideas and some have gotten to be friends (the kind that drink coffee!) over the years. Lots of talk about injuries from time to time; some serious, and some just scare the crap out of you. I turn a lot on Jet minis, and when I get going on a turning jag, I might turn for a few hours a day, 5 days a week. This nonsense has been going on for several years. Two years ago I was deep hollowing (yup.. entire possible on a Jet mini) when my bowl gouge caught on a twisty piece of grain I had uncovered by peeling away the insides of the vessel. It rolled the gouge over and smashed my finger so hard I thought it was broken. It turned kinda black and hurt like hell, but that was it. My wrist was sore for about a week. Flying wood has shot off the lathe (for different reasons) at such great velocity that it has left the lathe and embedded in the garage wall. I have had smaller pieces leap to their freedom (only to find themselves in the burn pile) and not hit the deck for about 15 feet. According the the spinners on that group, you can achieve aboutg 70 mph of velocity under the right conditions, and the have the math to prove it. I believe them. So how would your instructor react to being hit in his unprotected face with a piece of rough, spinning wood weighing a few POUNDS going 70 mph? If you persue this, you should join local club. They will help you keep straight. Always wear a dust mask, even a paper N95 is better than nothing. You will be standing right over your work all the time breathing wood dust. Always wear a full face mask. The ONLY time I wear goggles is when it is my turn to demo, or if I am teaching. No other time. And as far as no one getting hurt... click the link in the message below and see what you think. Many thanks to Owen Lowe, who tracked this down for us. Robert ************************************************** ********** Owen Lowe Northwest Woodturners Pacific Northwest Woodturning Guild ___ Tips fer Turnin': Place a sign, easily seen as you switch on your lathe, warning you to remove any and all rings from your fingers. Called degloving, extended hardware can grab your ring and rip it off your finger. A pic for the strong of stomach: www.itim.nsw.gov.au/go/objectid/2A3AC703-1321-1C29-70B067DC88E16BFC/i... |
#8
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How dangerous are lathes?
Just a follow up. The pic didn't happen while a guy was turning, but stories abound in the spinning community of things like that. No watches, rings or hair should be hovering around an object spinning at 5000 rpms. I can be breathtaking to just freehand a tool into something like that... imagine getting caught... Ouch! Robert |
#9
Posted to rec.woodworking
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How dangerous are lathes?
Toller wrote:
I have just finished a bowl turning course; my first lathe work. Generally that's a good idea - The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. - unless the instructor is dangerous. Sounds like yours was. I wonder how true that is. You're holding a sharp tool, applying it to a spinning piece of wood of uncertain soundness, turned by a quarter horse to a horse and a half and you've probably got chips of wood or ribbons of wood flying around. That's if the piece of wood starts out balanced and you've got the rpms below where things start to vibrate or rock around. Does this sound like a place to be careless and assume you're completely safe, no matter what you do? I read through the website on woodworking injuries, and there aren't many lathe injuries reported. Check to obituaries. Look for man killed from blunt trauma - may include unexplained discovery of large chunk of wood on the dented hood of the car in the driveway and the mysterious hole in the garage roof. The main problem seems to be the work breaking apart at high speeds. Haven't turned above 1200 rpms so I have no personal experience Does that happen much? A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? Probably lexan or other polycarbonate - pretty unbreakable unlike regular plastic. Protects your eyes from flying wood chips and could distribute the force or a larger flying piece of wood. I don't use a face shield often but that's because I've got a mini/ midi lathe (JET) and my glasses are polycarb. A face shield if you don't want to wear safety glasses would be a good idea. Getting a chip out of your eye ain't always easy. I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. Maybe, but the smart one, unlike myself. charlie b |
#10
Posted to rec.woodworking
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How dangerous are lathes?
On Wed, 29 Nov 2006 04:46:08 GMT, "Toller" wrote:
I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Certainly people can and do get hurt on a lathe, especially if they wear loose-fitting clothing. Now a lathe itself isn't going to cut your arm off, but it can certainly cause serious bruising, fractures and even breaks if your sleeve gets caught when it's spinning and pulls you into the work. A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? That's probably more of a concern than bodily damage, having a piece come apart at high revolutions and hit you. A face shield is manditory when using a lathe and I'd recommend a dust mask, at least when working with materials that might be toxic or hazardous (I do it all the time, but that's just me.) Most of the shields out there are strong enough to withstand small pieces of wood hitting them at high speed. I've seen some really extreme shields, made of thick Lexan and the like, but I think that's probably overkill for most people's needs. |
#11
Posted to rec.woodworking
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How dangerous are lathes?
Face Shield
I've got the one you see Norm wearing. North KHG5001, $15.84 as shown in Grainger CAT 394. (An old CAT) Add about 10-15% to be safe. Lew |
#12
Posted to rec.woodworking
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How dangerous are lathes?
Others have expressed themselves quite succinctly regarding the sagacity
of your instructor and I fully concur with them. But let me add a short note on lung protection. I have a shop-built air cleaner that I calculate (back of the lunch bag numbers) filters my shop air roughly 3 times a minute. Yeah ... that's a pretty noticeable breeze! I have a stack of three filters. The first is a normal 79 cent furnace filter that grabs stuff that would have settled out of the air if I weren't stirring it up so much. The second, a 5 micron filter, gets the air clean-looking ... that is, if it was the final filter, I'd be fooled into thinking that my air was clean. The third filter is rated to pass nothing bigger then 0.3 microns. Thats smaller than dust. Smaller than bacteria. Smaller, even, than some viruses. With that much air filtration, you'd think that dirty air would be the least of my concerns, eh? But I still wear a 1/2 mask respirator (~$26 at Harbor Freight) because I am closer to where the dust is generated than the filter is ... so my lungs get first dibs on it. There is an older carpenter that I know. He provided well for his family and retired with a workshop bigger than my house and yard combined. But he never wore so much as a dust mask. He's doing well to get 2 or 3 words out between coughs. Lathe work generates a lot of dust to go with the shavings. You do the math. Bill -- Political Correctness relies on the presumption that it is possible to pick up a turd by the clean end. -- Me, 2006 |
#13
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How dangerous are lathes?
Toller wrote:
I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. There are occasional injuries. I would worry about the thing catching my clothes and pulling me in. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. The main problem seems to be the work breaking apart at high speeds. Does that happen much? I don't think so. A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? It's probably OK. Your mask doesn't have to deflect a bullet. It's going to both deflect and spread an impact out over a larger area, reducing its effect. It also keeps the crap from flying into your eyes all the time. I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. That would be the inside of your lungs otherwise. I wear eye and lung protection when there's stuff flying around to get me. If it's noisy I wear hearing protection as well. If I had known way back I was going to live so long, I'd have taken better care of myself back in the days when I thought I was bulletproof. -- Mortimer Schnerd, RN mschnerdatcarolina.rr.com |
#14
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How dangerous are lathes?
In article , "Toller" wrote:
I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Completely false. I remember an especially gruesome incident described either here, or on rcw, a number of years ago in which a long-haired turner failed to tie his hair back, and managed to get a pretty hefty lock of it wrapped around the spinning workpiece. I'll leave the results to your imagination, which likely isn't going to be any worse than the reality. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. The main problem seems to be the work breaking apart at high speeds. Does that happen much? Never to me, but it has happened. Why not post in rcw (rec.crafts.woodturning) and see what folks there have to say. It seems to me that this is a problem mostly with bowl turning, where the workpiece is of a fairly large diameter and often being turned with the axis of the grain perpendicular to the lathe bed. If all you do is spindle turnings (e.g. pens, candlesticks, baseball bats, chair rungs, table legs, etc.) this is a fairly low risk. A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? Good enough -- and a lot better than simply goggles. I've said it before, and I'll say it again: there are other things on your face besides your eyes that are worth protecting. Teeth, for instance. I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. Then it would seem that you have more sense than the others. Without the mask, the stuff that's making it dirty would be making your lungs dirty instead. -- Regards, Doug Miller (alphageek at milmac dot com) It's time to throw all their damned tea in the harbor again. |
#15
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How dangerous are lathes?
"Mortimer Schnerd, RN" mschnerdatcarolina.rr.com wrote in message ... That would be the inside of your lungs otherwise. I wear eye and lung protection when there's stuff flying around to get me. If it's noisy I wear hearing protection as well. If I had known way back I was going to live so long, I'd have taken better care of myself back in the days when I thought I was bulletproof. Pretty rare, injuries at a lathe. As far as life-threatening injuries, it's safer than walking across the street, certainly. Potential is there for the careless to ding themselves, but it's fairly easy to move the ON/OFF switch to where you don't have to lean into the disintegration zone to activate, reasonable to cut standing outside the zone if you push the tool handle. Makes you an unlikely impact point. Eyes are very vulnerable and deserve protection. Face shields are often more trouble in distortion, distraction and discomfort than they're worth, especially when the above procedures are followed. Cutting doesn't make dust, though sanding certainly does, so makes sense not to overload the body's natural defenses and wear something to cut down on access. Makes better sense to collect close to the point of generation. When that's done well, it's tough to work up a booger even if you don't wear a mask. |
#16
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How dangerous are lathes?
In article , "George" wrote:
Eyes are very vulnerable and deserve protection. True -- but they are not the only parts of your face that should be protected. Teeth, for example... Face shields are often more trouble in distortion, distraction and discomfort than they're worth, especially when the above procedures are followed. It does not appear that you have much, if any, experience in wearing face shields. Mine gives *no* problems with distortion or distraction -- and comfort is one of the reasons I prefer it to goggles. Vision is so clear, and the shield so lightweight and comfortable, that I often forget it's there, even to the point of banging my knuckles on it when I reach up to scratch my nose. In addition to being more comfortable than goggles, it also takes less time to don or doff -- which means I'm *much* more likely to use it, as there's really no excuse at all for not wearing it. The one downside I've experienced with a face shield is the importance of remembering to flip it up when I feel a sneeze coming on. :-b -- Regards, Doug Miller (alphageek at milmac dot com) It's time to throw all their damned tea in the harbor again. |
#17
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How dangerous are lathes?
"Toller" writes:
I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Wood moves. Sharp edges don't. So a lathe's safer than other tools. HOWEVER: * You can still get sleeves/clothing caught in the rotating chuck. * Your fingers can get mashed by a chuck. * That wood can break loose and fly at your body! I don't know if anyone was seriously injured on a Jet Mini. -- Sending unsolicited commercial e-mail to this account incurs a fee of $500 per message, and acknowledges the legality of this contract. |
#18
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How dangerous are lathes?
In article ,
Bruce Barnett wrote: .... HOWEVER: * You can still get sleeves/clothing caught in the rotating chuck. Never had that happen (yet) * Your fingers can get mashed by a chuck. Or the wood (yesterday) * That wood can break loose and fly at your body! Last week (bounced off the face shield) -- -------------------------------------------------------- Personal e-mail is the n7bsn but at amsat.org This posting address is a spam-trap and seldom read RV and Camping FAQ can be found at http://www.ralphandellen.us/rv |
#19
Posted to rec.woodworking
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How dangerous are lathes?
In article ,
"Toller" wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. The main problem seems to be the work breaking apart at high speeds. Does that happen much? A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. .... I wear a full-face shield that is also a mask. Mine is a Trend, but there is also the 3M and Triton. There are two kinds of woodworkers, those that have wood dust allergies, and those that will. -- -------------------------------------------------------- Personal e-mail is the n7bsn but at amsat.org This posting address is a spam-trap and seldom read RV and Camping FAQ can be found at http://www.ralphandellen.us/rv |
#20
Posted to rec.woodworking
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How dangerous are lathes?
Hi--
I've been turning a lot over the last three years and have racked up a few injuries--none serious but enuf to make me take protecting myself seriously. I wear a face shield. It gets dirty, picks up sap when I turn green wood, fogs in the winter, and when I sneeze you don't wanna know. But I turn a lot of wood right off the tree, and it does fling small split pieces off, as well as bark. Even at 450 rpm, they move. Several have caught me in the face (mask) making me glad I wore it. I've had about 5 bowls come unglued from the face plate. They don't fly, they just sort of wander off of the lathe, mostly at the back. I turned a plate from an old butcher block top. Got it all done, and spun it at 1200 rpm to melt the wax. There was one crack sound, and I stopped all to see what happened, didn't see anything. When I turned it back on, there was another, and the thing flew apart in three pieces. Two of the old glue joints let go. I caught one on the side of my arm, one in my gut, and had bruises for a week. I think my face shield would have resisted the impact. I hit my fingers a lot with corners before I get the wood rough rounded. You can't see them. And really knocked my knuckles on "natural edges" spinning fast. Finally, I've been turning some larger bowls--start with a chunk of trunk about 13" in diameter and maybe 15" deep. Have to balance it carefully before, but even thin it is off balance. I lag screw it to the face plate, make several checks of clearance and balance before I hit the switch, but when that wood (weighs in at about 30-35#) starts spinning and shaking its pretty impressive. I stand next to the off switch, out of the line of fire. So, take care, you can get hurt, but sensible precautions and knowing which part of the air belongs to the turning and which part your hands can go into help. Have a grand time turning--join a turning club and find some of the resources on the internet. They are great. http://www.woodturner.org/ OldGuy "Toller" wrote in message ... I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. I read through the website on woodworking injuries, and there aren't many lathe injuries reported. The main problem seems to be the work breaking apart at high speeds. Does that happen much? A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? I am the only person wearing a dust mask, and it gets pretty dirty after a few hours. |
#21
Posted to rec.woodworking
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How dangerous are lathes?
In article ,
Bill in Detroit wrote: Others have expressed themselves quite succinctly regarding the sagacity of your instructor and I fully concur with them. But let me add a short note on lung protection. I have a shop-built air cleaner that I calculate (back of the lunch bag numbers) filters my shop air roughly 3 times a minute. Yeah ... that's a pretty noticeable breeze! I have a stack of three filters. The first is a normal 79 cent furnace filter that grabs stuff that would have settled out of the air if I weren't stirring it up so much. The second, a 5 micron filter, gets the air clean-looking ... that is, if it was the final filter, I'd be fooled into thinking that my air was clean. The third filter is rated to pass nothing bigger then 0.3 microns. Thats smaller than dust. Smaller than bacteria. Smaller, even, than some viruses. With that much air filtration, you'd think that dirty air would be the least of my concerns, eh? But I still wear a 1/2 mask respirator (~$26 at Harbor Freight) because I am closer to where the dust is generated than the filter is ... so my lungs get first dibs on it. I wear a full face shield/filter, and add a dust collector (with the nozzle at the lathe) to the above whole shop air filter There is an older carpenter that I know. He provided well for his family and retired with a workshop bigger than my house and yard combined. But he never wore so much as a dust mask. He's doing well to get 2 or 3 words out between coughs. See my other post in this thread.... -- -------------------------------------------------------- Personal e-mail is the n7bsn but at amsat.org This posting address is a spam-trap and seldom read RV and Camping FAQ can be found at http://www.ralphandellen.us/rv |
#22
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How dangerous are lathes?
Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Lathes have a good safety record, which probably has more to do with how _many_ accidents they have, not how few. Lathes have lots of accidents, particularly with beginners. They're _small_ accidents though (in general), so no-one gets hurt. It does encourage a good attitude to safety though, certainly compared to most other woodworking machines. People using jointers, planers and spindles have a cavalier attitude to safety because they've never seen one of these rare accidents and they take an "It'll never happen to me" approach to it. OTOH, there are no small planer accidents. You ever get caught by one of those and it's going to be messy... Lathes are comparatively benign. We've all had catches, we've all had work fall out of a chuck. Many of us will have been walloped by something. Few get really hurt by this, but it's the most direct lesson you can get that if it hits your nose today, it might get you in the eyes tomorrow. Turners aren't safety nazis, but more of them are wearing appropriate safety gear, more of the time, than you'll find with most other machinists. A consideration of rotational dynamics and Newtonian mechanics is reassuring, as regards their log-throwing behaviour. A lathe just won't throw turned cylindrical work at you -- there's no resultant linear inertia in a rotating cylinder and so it all ever does is drop quietly, at worst with a bit of pole vaulting if it hits something else. To get a serious wood-chuck accident, you either need to be turning an unbalanced piece, or to have something dismantle itself whilst rotating. So start off slow on those green logs! |
#23
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How dangerous are lathes?
Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. You're kidding right? In HS metal shop I was standing right next to a kid wearing a long sleeve sweater working on a lathe. Sweater got caught on the work and ripped completely off his body before he or I could hit the red button. Luckily no major injury, bruises and brush burns from the fabric, but could have been much worse. He did have to indure the humilitaion of having his sweater stapled to the bulletin board in the class for the rest of the year. The instructor is a jackass and has no business trying to teach anyone anything. |
#24
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How dangerous are lathes?
Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. I agree, the guy is a dickhead! I have been using metal and wood lathes since I was 15, (now 55) and I can remember one poor chap at work getting a piece of wood that broke off stuck in his forehead! very nasty.. You should all ways work with great respect for machinery, accidents can and will happen if you don't. Eddie. |
#25
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How dangerous are lathes?
On Wed, 29 Nov 2006 05:34:18 -0800, Ralph E Lindberg wrote:
In article , Bruce Barnett wrote: ... HOWEVER: * You can still get sleeves/clothing caught in the rotating chuck. Never had that happen (yet) More of a girl/Hippie/suit problem--the first two get their hair caught, with the third it's his tie. * Your fingers can get mashed by a chuck. Or the wood (yesterday) * That wood can break loose and fly at your body! Last week (bounced off the face shield) -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#26
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How dangerous are lathes?
On Wed, 29 Nov 2006 05:44:39 -0800, Andy Dingley
wrote: Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Lathes have a good safety record, which probably has more to do with how _many_ accidents they have, not how few. Lathes have lots of accidents, particularly with beginners. They're _small_ accidents though (in general), so no-one gets hurt. It does encourage a good attitude to safety though, certainly compared to most other woodworking machines. People using jointers, planers and spindles have a cavalier attitude to safety because they've never seen one of these rare accidents and they take an "It'll never happen to me" approach to it. OTOH, there are no small planer accidents. You ever get caught by one of those and it's going to be messy... Lathes are comparatively benign. We've all had catches, we've all had work fall out of a chuck. Many of us will have been walloped by something. Few get really hurt by this, but it's the most direct lesson you can get that if it hits your nose today, it might get you in the eyes tomorrow. Turners aren't safety nazis, but more of them are wearing appropriate safety gear, more of the time, than you'll find with most other machinists. A consideration of rotational dynamics and Newtonian mechanics is reassuring, as regards their log-throwing behaviour. A lathe just won't throw turned cylindrical work at you -- there's no resultant linear inertia in a rotating cylinder and so it all ever does is drop quietly, at worst with a bit of pole vaulting if it hits something else. To get a serious wood-chuck accident, you either need to be turning an unbalanced piece, or to have something dismantle itself whilst rotating. So start off slow on those green logs! A comment about "log-throwing"--while there's no translational kinetic energy, there's plenty of rotational kinetic energy that can be converted to translational under the right circumstances. Here's an extreme example. This wasn't a lathe incident but one time a propeller (again no translational kinetic energy) came loose in a test cell at Humongous Aerospace (where I used to be an engineer) and climbed the wall, sawed a hole in the roof, walked across the roof and then trashed a row of cars in the parking lot--IIRC it didn't stop until it got tangled up in a high chain-link fence that it mostly tore down. Now that was a _lot_ bigger than most of us are going to be turning--it was 12 feet in diameter, weighed about half a ton, and was consuming about 5,000 horsepower when it came adrift, but the point remains--if the rim gets a good purchase on something a heavy piece turning at high speed can manage to launch itself pretty hard. -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#27
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How dangerous are lathes?
George wrote:
Pretty rare, injuries at a lathe. As far as life-threatening injuries, it's safer than walking across the street, certainly. Potential is there for the careless to ding themselves, but it's fairly easy to move the ON/OFF switch to where you don't have to lean into the disintegration zone to activate, reasonable to cut standing outside the zone if you push the tool handle. Makes you an unlikely impact point. I don't live in fear of being killed using a lathe. OTOH, I've lived through two plane crashes and have a full understanding of the concept of lightning not always striking the other guy. That being said, there's no point in being stupid. You do what you can do but there is a point of diminishing return. I look for the most bang for the buck in concepts of safety. If I don't consider the return high enough, I'm not likely to bother. Cutting doesn't make dust, though sanding certainly does, so makes sense not to overload the body's natural defenses and wear something to cut down on access. Makes better sense to collect close to the point of generation. When that's done well, it's tough to work up a booger even if you don't wear a mask. I have a 1 micron dust collector piped into my big tools and also have an air cleaner mounted on the ceiling of my garage, uh, I mean workshop. On occasion I end up out in the driveway with something that produces clouds of dust or chips. If I do, I wear a respirator. I never need to wear one when I'm cutting boards at the jointer, band or table saw. The dust collector handles them well enough to suit me. Irregardless of what I'm doing, if a cloud of dust exists, I wear the respirator. But that's the only time I wear it. -- Mortimer Schnerd, RN mschnerdatcarolina.rr.com |
#28
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How dangerous are lathes?
"Toller" wrote A number of people recommended full face shields. I have one, but it is pretty thin flexible plastic; I don't expect it would help much against a high speed chunk of wood. I looked up a few websites (amazon, hartsville, woodcraft) and they just sell ones like mine, except mine has a metal frame. Is there something better, or is it strong enough? I will give my standard rant concerning face sheilds. When I was setting up a small metal shop, I asked a friend of mine who worked in steel mills where I should go to buy some basic safety equipment. He referred to to an industrial safety suppplier. Most cities of any size have them. There is an amazing assortment of safety equipment at them and most of is is much better quality than what you get at the borg. I ended up getting a red hard hat with a face shield attachment. The face shield was a sheet of flexible polycarbonate with holes in the edge that matched the frame on the helmet. It quickly changed out from the old one to the new one. Polycarbonate, although tough, does have a tendancy to get scratched up. So replacement shieds are a must. One of the reasons why I bought this setup was because my steel mill friend had some tall tales of how they saved somebody's face/eyes. i have had a number of solid objects impact the face shield when grinding down metal parts. One time it hit hard enough to knock me over onto my ass from a forward bending position. I have also taken hits on the hard hat as well. If I am going to do anything in the shop, metal or woodwork, that has a potential to do me bodily harm, I armor up. Hard hat, face shield, ear protection, safety glasses and dust mask are a minimum. I often wear a leather apron as well with a break away strings on it in case it gets caught in anything. Call me a safety freak. But I grew up around all kinds of industrial accident victims. I vowed from an early age that nothing like this was going to happen to me. And I have been a bonafide safety freak ever since. |
#29
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How dangerous are lathes?
wrote in message oups.com... Lew Hodgett wrote: Face Shield I've got the one you see Norm wearing. North KHG5001, $15.84 as shown in Grainger CAT 394. (An old CAT) Add about 10-15% to be safe. Lew And as far as dust masks go, I wear these a lot, from many different manufacturers, but all made for people leaning over an ugly cesspool of germs and ground, powdered bone and amalgam. http://tinyurl.com/yhu4e6 At 7 cents each, there really isn't much of an excuse for not wearing them. Sometimes I wear 3 or 4 a day, so I buy them 200 at a time. Almost all of those guys on Ebay have lot of those masks so just contact them and ask for more at the same price. If you like those, get the ones that have ear loops, and make sure they have a wire nose clip. I have found that they are not nearly as hot as my 3m dustmasks that I buy for the guys. That is what I have been using also. Rather more comfortable than the plastic ones with replaceable filters. |
#30
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How dangerous are lathes?
I don't know what is done in shops or at homes alone, but I have been hit
bit a flying cutting tool that sliced through my arm, and flew across the room. I was cutting with the ~16" gouge facing away from me at the time. ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#31
Posted to rec.woodworking
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How dangerous are lathes?
wrote in message oups.com... Lew Hodgett wrote: Face Shield I've got the one you see Norm wearing. North KHG5001, $15.84 as shown in Grainger CAT 394. (An old CAT) Add about 10-15% to be safe. Lew And as far as dust masks go, I wear these a lot, from many different manufacturers, but all made for people leaning over an ugly cesspool of germs and ground, powdered bone and amalgam. http://tinyurl.com/yhu4e6 At 7 cents each, there really isn't much of an excuse for not wearing them. Sometimes I wear 3 or 4 a day, so I buy them 200 at a time. Almost all of those guys on Ebay have lot of those masks so just contact them and ask for more at the same price. If you like those, get the ones that have ear loops, and make sure they have a wire nose clip. I have found that they are not nearly as hot as my 3m dustmasks that I buy for the guys. Robert Those masks are designed to keep "germs" from leaving the mask. not sure how effective they are at keeping dust particles from entering. |
#32
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How dangerous are lathes?
The instructor is a jackass and has no business trying to teach anyone anything I could not have said it better. Accidents, when they happen, are not when you start worrying about protection. About a decade ago, a high school student was turning when a bowl let loose and hit him in the head....today he is ten years older and still a vegetable. All lathes were removed from neighboring public schools because of this incident...I have one sitting in my shop. Others have done an excellent job of covering the safety concerns and equipment that you need to have. Use the safety equipment, practice good safety measures and enjoy turning...and teach anyone else you know that safety does count. TMT RayV wrote: Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. You're kidding right? In HS metal shop I was standing right next to a kid wearing a long sleeve sweater working on a lathe. Sweater got caught on the work and ripped completely off his body before he or I could hit the red button. Luckily no major injury, bruises and brush burns from the fabric, but could have been much worse. He did have to indure the humilitaion of having his sweater stapled to the bulletin board in the class for the rest of the year. The instructor is a jackass and has no business trying to teach anyone anything. |
#33
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How dangerous are lathes?
Locutus wrote:
Those masks are designed to keep "germs" from leaving the mask. not sure how effective they are at keeping dust particles from entering. I've never seen a paper mask that didn't have gaps at the edge that are plainly visible. Bill |
#34
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How dangerous are lathes?
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#35
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How dangerous are lathes?
Bill in Detroit wrote:
I've never seen a paper mask that didn't have gaps at the edge that are plainly visible. You need to look at the N95 paper masks. We use them to work around TB patients. They don't gap around the edges at all.... rather they are shaped and they have a flexible nose bridge that you squeeze to form a fit. If they won't let TB in, I doubt they'll let dust in either. -- Mortimer Schnerd, RN mschnerdatcarolina.rr.com |
#36
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How dangerous are lathes?
Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Is he nuts? r |
#37
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How dangerous are lathes?
Bill in Detroit wrote:
I've never seen a paper mask that didn't have gaps at the edge that are plainly visible. Check out Moldex, much better than 3M, IMHO. Lew |
#38
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How dangerous are lathes?
"Mortimer Schnerd, RN" mschnerdatcarolina.rr.com wrote in message ... Bill in Detroit wrote: I've never seen a paper mask that didn't have gaps at the edge that are plainly visible. You need to look at the N95 paper masks. We use them to work around TB patients. They don't gap around the edges at all.... rather they are shaped and they have a flexible nose bridge that you squeeze to form a fit. If they won't let TB in, I doubt they'll let dust in either. Not to mention, they're really cheap when the staff's not looking! People seem to get hung up on the sieve theory of filtration, which isn't really what's happening here. If the dust hits a fiber, there's enough fuzz and too little vacuum to have it go further. That's why you see a faint trace of dust around where your smile gaps open the mask. Also why silt precipitates in slow water. Not to mention that dust particles have to enter into your nasopharyngeal cavity, which is equipped with hair to cause turbulence, mucous to trap anything, and cilia to take out the trash. It's fumes, not cellulose you should be concerned with. Or in the case of wood, the poisonous extractives the tree uses to fight off critters, fungi, and bacteria that want to eat it. Dust carries or contains them. Of course, these problems are not unique to lathes, and are actually much less of a problem than with many other tools in the shop. |
#39
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How dangerous are lathes?
"Robatoy" wrote in message ps.com... Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Is he nuts? Probably just experienced. What he doesn't realize that others may not follow what he's teaching and the safety that's automatic to him. That can mean trouble. |
#40
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How dangerous are lathes?
In article , "George" wrote:
"Robatoy" wrote in message ups.com... Toller wrote: I have just finished a bowl turning course; my first lathe work. The instructor is very casual about safety; he says that is reasonable, since no one ever get hurt on a lathe. I wonder how true that is. Is he nuts? Probably just experienced. No, he's nuts -- and *not* experienced, either, if he really thinks that "no one ever got hurt on a lathe". What he doesn't realize that others may not follow what he's teaching and the safety that's automatic to him. That can mean trouble. The OP said "the instructor is very casual about safety" -- that doesn't sound like safety is "automatic" to him; quite the opposite, I'd say, and that *does* mean trouble. I don't mean to suggest that lathes are vicious, murderous tools, lurking in the corner of the shop waiting to leap upon some unsuspecting rookie turner and strangle him, but, like *any* power tool, they do have the potential to cause serious injury. To suggest, as the OP's instructor apparently did, that one need not worry about safety precautions at the lathe because the tool is inherently harmless, is dangerous and irresponsible. -- Regards, Doug Miller (alphageek at milmac dot com) It's time to throw all their damned tea in the harbor again. |
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