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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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grinders bite
On Mon, 29 Oct 2012 22:12:54 -0700, "Steve B"
wrote: A few days ago, I bought the first sanding disc for my high rpm Makita 4" grinder that I had bought in ten years. Just don't do that much fine finish work. I have done hundreds of hours of using a grinder. I know the kick spots. But I had it grinding in the 9 o/clock position of the wheel and KICK! Went flying, and sliced the top of my left hand. Nice 2.5 inch incision, half deep, half just along the fat line, and not down into the meat. Nice little white things in there looking like cotton line, but didn't cut any. Lots of flowing blood, as I am on coumadin. SNIP Hey Steve, Story I've mentioned her before...I walked into a shop of a guy I knew, and he was standing there in a white T-shirt, smoking and shaking so bad he could hardly get the cigarette to his lips. Actually, the T-shirt wasn't nearly as white as he was!! I thought he was really ill. I asked if he was OK, and he sort of pointed to a green lump of cloth on the welding table with a nice cord sticking out of it like a tail. Wuzzup?? says I. He just pointed again at the green lump, so I went over and tried to pick it up, but it was kinda heavy. I unwrapped a 7" Black & Decker grinder, complete with the side handle Turns out, he was grinding a weldment (like Gunner does??), and he let go the trigger and his right hand to have a look at how he was doing, and the grinder was still spinning and slipped in his left hand and smacked him perfectly "flat" in the stomach. It wrapped his work-shirt in the disc and the shirt just came clean off his body. Not a mark on him except his whole back had like a mild sun-burn. He was just luckier than you I guess. Take care (too, late??) Brian Lawson |
#2
Posted to rec.crafts.metalworking
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grinders bite
"Brian Lawson" wrote in message ... On Mon, 29 Oct 2012 22:12:54 -0700, "Steve B" wrote: A few days ago, I bought the first sanding disc for my high rpm Makita 4" grinder that I had bought in ten years. Just don't do that much fine finish work. I have done hundreds of hours of using a grinder. I know the kick spots. But I had it grinding in the 9 o/clock position of the wheel and KICK! Went flying, and sliced the top of my left hand. Nice 2.5 inch incision, half deep, half just along the fat line, and not down into the meat. Nice little white things in there looking like cotton line, but didn't cut any. Lots of flowing blood, as I am on coumadin. SNIP Hey Steve, Story I've mentioned her before...I walked into a shop of a guy I knew, and he was standing there in a white T-shirt, smoking and shaking so bad he could hardly get the cigarette to his lips. Actually, the T-shirt wasn't nearly as white as he was!! I thought he was really ill. I asked if he was OK, and he sort of pointed to a green lump of cloth on the welding table with a nice cord sticking out of it like a tail. Wuzzup?? says I. He just pointed again at the green lump, so I went over and tried to pick it up, but it was kinda heavy. I unwrapped a 7" Black & Decker grinder, complete with the side handle Turns out, he was grinding a weldment (like Gunner does??), and he let go the trigger and his right hand to have a look at how he was doing, and the grinder was still spinning and slipped in his left hand and smacked him perfectly "flat" in the stomach. It wrapped his work-shirt in the disc and the shirt just came clean off his body. Not a mark on him except his whole back had like a mild sun-burn. He was just luckier than you I guess. Take care (too, late??) Brian Lawson Believe me, I did learn a lesson. And I will have about two more weeks of looking at the stitches and healing wound to remind me. A lifetime after that right in front of my face to remind me each time I put on the gloves. Guess I am going to put those handles on those grinders. I do notice that I will hold a grinder at the end with one hand, and the handle on the other. Probably designed that way by a disabled person. Steve |
#3
Posted to rec.crafts.metalworking
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grinders bite
"Steve B" wrote in
: "Brian Lawson" wrote in message ... On Mon, 29 Oct 2012 22:12:54 -0700, "Steve B" wrote: A few days ago, I bought the first sanding disc for my high rpm Makita 4" grinder that I had bought in ten years. Just don't do that much fine finish work. I have done hundreds of hours of using a grinder. I know the kick spots. But I had it grinding in the 9 o/clock position of the wheel and KICK! Went flying, and sliced the top of my left hand. Nice 2.5 inch incision, half deep, half just along the fat line, and not down into the meat. Nice little white things in there looking like cotton line, but didn't cut any. Lots of flowing blood, as I am on coumadin. SNIP Hey Steve, Story I've mentioned her before...I walked into a shop of a guy I knew, and he was standing there in a white T-shirt, smoking and shaking so bad he could hardly get the cigarette to his lips. Actually, the T-shirt wasn't nearly as white as he was!! I thought he was really ill. I asked if he was OK, and he sort of pointed to a green lump of cloth on the welding table with a nice cord sticking out of it like a tail. Wuzzup?? says I. He just pointed again at the green lump, so I went over and tried to pick it up, but it was kinda heavy. I unwrapped a 7" Black & Decker grinder, complete with the side handle Turns out, he was grinding a weldment (like Gunner does??), and he let go the trigger and his right hand to have a look at how he was doing, and the grinder was still spinning and slipped in his left hand and smacked him perfectly "flat" in the stomach. It wrapped his work-shirt in the disc and the shirt just came clean off his body. Not a mark on him except his whole back had like a mild sun-burn. He was just luckier than you I guess. Take care (too, late??) Brian Lawson Believe me, I did learn a lesson. And I will have about two more weeks of looking at the stitches and healing wound to remind me. A lifetime after that right in front of my face to remind me each time I put on the gloves. Guess I am going to put those handles on those grinders. I do notice that I will hold a grinder at the end with one hand, and the handle on the other. Probably designed that way by a disabled person. Steve Its good if you can learn from someone else's experience . . . I decided a long time ago to make it a habit and policy not to shift my grip unless the grinder was well clear of the work and me and to maintain concentration and not to put down a grinder till the disk is stopped. Apart from better control, using the handle requires a two hand grip, which keeps your other hand off the work and away from the disk. You probably want the guard turned some to keep the fingers on the side handle off the disk if your grip slips a bit the next time you get a kick. Its also some protection if the disk grenades. Guys who use grinders a lot may be more relaxed about handling them, but for occasional users, we need to think safety first all the time as otherwise we may not spot risky operations. -- Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED) ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk [at]=@, [dash]=- & [dot]=. *Warning* HTML & 32K emails -- NUL |
#4
Posted to rec.crafts.metalworking
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grinders bite
I decided a long time ago to make it a habit and policy not to shift my grip unless the grinder was well clear of the work and me and to maintain concentration and not to put down a grinder till the disk is stopped. One of my first assignments in the Gulf of Mexico was to assist a welder. One of the first things I got clear instructions on was to NEVER EVER lay the grinder on the disc, or drop it on the disc. I didn't get to the part about "while it was spinning", as I was not trusted to operate one for a good while. Just get it and hand it to the welder, and take it from him and sit it down. Saw more than one guy get seriously yelled at for abusing a disc. Steve |
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