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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
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A lesser alternative to a bench grinder?
Generally speaking... Can you use an angle grinder instead of a
bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. |
#2
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A lesser alternative to a bench grinder?
"John Doe" wrote in message
b.com... Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Sure. Or a plain ole drill, with a variety of grinding wheels, sanding wheels, flap discs, you name it.. There is also a low rpm "wet wheel", for knives and such, at Sears for $30-40, comes in handy. Scotch brite even makes polishing pads for angle grinders, of all descriptions. In a number of cases, these alternative grinding scenarios are actually preferable to a typical bench/pedestal grinder. And even in a small ****ty shop like mine (with some cnc), you cain't have too many grinders, sanders. Between surface grinders, belt sanders, pedestals, I have almost 10. And even those aren't enough, and I'll have occasion to mount a porter-cable 4x24 belt sander in a vise.... Speaking of which, overall, a vertical belt sander -- or even a hand-held belt sander, mounted in a vise -- might be the overall most versatile grinding bang for the buck. Altho, the cost of belts will quickly exceed the cost of one coase grinding wheel, which in my shop has lasted for years. -- EA Thanks. |
#3
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A lesser alternative to a bench grinder?
"Existential Angst" wrote in message ... "John Doe" wrote in message b.com... Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Sure. Or a plain ole drill, with a variety of grinding wheels, sanding wheels, flap discs, you name it.. There is also a low rpm "wet wheel", for knives and such, at Sears for $30-40, comes in handy. Scotch brite even makes polishing pads for angle grinders, of all descriptions. In a number of cases, these alternative grinding scenarios are actually preferable to a typical bench/pedestal grinder. And even in a small ****ty shop like mine (with some cnc), you cain't have too many grinders, sanders. Between surface grinders, belt sanders, pedestals, I have almost 10. And even those aren't enough, and I'll have occasion to mount a porter-cable 4x24 belt sander in a vise.... Speaking of which, overall, a vertical belt sander -- or even a hand-held belt sander, mounted in a vise -- might be the overall most versatile grinding bang for the buck. Altho, the cost of belts will quickly exceed the cost of one coase grinding wheel, which in my shop has lasted for years. -- EA Thanks. I will second that opinion about belt sanders especially if you work with aluminum. Grinding aluminum can ruin a grinding wheel. I have even heard it that the embedded chunks of aluminum can heat up and split the grinding wheel, but maybe that was just a story meant to scare people into not doing it. A belt sander works great for beveling corners and general hand finishing. |
#4
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A lesser alternative to a bench grinder?
"John Doe" wrote in message b.com... Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. Your question is too broad and vague to answer well. An angle grinder, belt sander or Dremel (or a file) can handle some of a bench grinder's tasks but not all and not necessarily as well. If you don't have permant space for one there are small portable bench-type grinders for smaller work. I prefer the Delta original of this 1x30 belt sander for light work: http://images.harborfreight.com/cpi/...8399/38300.GIF It smooths steel, aluminum, wood and plastic nicely but is too slow to remove much steel, like grinding the mushroom off a cold chisel. Angle grinders take some skill and practice to use precisely. I use a 4-1/2" one to rough-grind lathe bits and reshape damaged woodworking tools, which is pushing its limits. I couldn't sharpen a plane blade with one. That's a job for a properly dressed bench grinder. The belt sander doesn't do too well on them because the paper belt seems to compress and rebound too much to grind a flat razor edge. jsw |
#5
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A lesser alternative to a bench grinder?
"John Doe" wrote in message b.com... Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. Yes, no, absolutely, maybe, and I don't know. Generally speaking, it depends on what you are doing. A bench grinder lets you hold the work. Using a hand grinder, you are doing a dangerous two handed ballet. Air tools work good for small stuff. Dremels, Foredoms, and the like work for really small fine stuff. And then, they make small bench grinders and polishers. Just depends on what you're doing. The usual is to have one of each, just to be safe. And a couple of spares, too. Steve |
#6
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A lesser alternative to a bench grinder?
"John Doe" wrote in message eb.com... "Steve B" steveb gmail.com wrote: "John Doe" jdoe usenetlove.invalid wrote Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. Yes, no, absolutely, maybe, and I don't know. Hey Stevie, provider of frivolous answers. Generally speaking, it depends on what you are doing. If you don't know generally what I'm doing, Stevie, you haven't read what you're replying to. -- ================================================== ============== [reply] Just watch for heat. Reinforced grinding wheels for angle-head grinders generate a lot more heat than a soft, coarse-grit wheel on a bench grinder, like the white wheels used for quality tool sharpening. It also will be hotter than an ordinary blue wheel, and a bit hotter than a green wheel (silicon carbide). The resin-bonded wheels used in the smaller sizes of angle-head grinders are somewhere in between. But you can overcome that with technique. I use both, and I don't have any heating problems. But I'm very careful not to overdo it with the angle-head grinder. Move fast, and don't use much pressure if you're grinding something that's heat-treated. Give the work time to cool between passes. -- Ed Huntress ================================================== ============== A bench grinder lets you hold the work. Using a hand grinder, you are doing a dangerous two handed ballet. Air tools work good for small stuff. Dremels, Foredoms, and the like work for really small fine stuff. And then, they make small bench grinders and polishers. Just depends on what you're doing. The usual is to have one of each, just to be safe. And a couple of spares, too. Steve Path: news.astraweb.com!border6.newsrouter.astraweb.com! feed.news.qwest.net!mpls-nntp-02.inet.qwest.net!nx02.iad01.newshosting.com!newsh osting.com!post01.iad!not-for-mail Reply-To: "Steve B" steveb gmail.com From: "Steve B" steveb gmail.com Newsgroups: rec.crafts.metalworking References: 4ec28374$0$28801$c3e8da3$f48d872 news.astraweb.com Subject: A lesser alternative to a bench grinder? Date: Tue, 15 Nov 2011 12:45:03 -0800 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 X-RFC2646: Format=Flowed; Original X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Organization: UseNetServer - www.usenetserver.com X-Complaints-To: abuse usenetserver.com Message-ID: ebAwq.52774$QI1.30497 news.usenetserver.com Lines: 31 |
#7
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A lesser alternative to a bench grinder?
"John Doe" wrote in message eb.com... "Steve B" steveb gmail.com wrote: "John Doe" jdoe usenetlove.invalid wrote Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. Yes, no, absolutely, maybe, and I don't know. Hey Stevie, provider of frivolous answers. Generally speaking, it depends on what you are doing. If you don't know generally what I'm doing, Stevie, you haven't read what you're replying to. -- Well, that's easy to fix. buh bye |
#8
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A lesser alternative to a bench grinder?
Many things I do by bench grinder, can do other ways. But,
the bench grinder is excellent for sharpening drill bits, lawn mower blades, and other tasks. For me, it's bench space well used. What are you trying to accomplish? -- Christopher A. Young Learn more about Jesus www.lds.org .. "John Doe" wrote in message b.com... Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. |
#9
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A lesser alternative to a bench grinder?
On Nov 15, 8:50*pm, "Stormin Mormon"
wrote: Many things I do by bench grinder, can do other ways. But, the bench grinder is excellent for sharpening drill bits, lawn mower blades, and other tasks. For me, it's bench space well used. What are you trying to accomplish? -- Christopher A. Young Learn more about Jesus *www.lds.org . I am with Chris. You can use a file instead of a bench or angle grinder, but the right tool for the job makes it a lot easier. You can find used bench grinders and for some jobs they are much better than trying to use an angle grinder. Dan |
#10
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A lesser alternative to a bench grinder?
There are several accessories available for adapting angle grinders to other
uses. One gizmo is attached to "turn an angle grinder "into a chop saw-kinda" deal. Another one mounts to an aggle grinder to allow it to be used like a circular saw when fitted with the appropriate cutting disk. So, there are already commercially-made products which permit an ordinary angle grinder to be more versatile. Sine these other products are fairly inexpensive, they may provide a basic mounting method for mounting an angle grinder to a bench, for example. One sigificant difference between using an AC induction motor bench grinder, compared to an angle grinder is the RPM, so the velocity and range of the dust/debris from an angle grinder are generally greater than those of a typical bench grinder. I purchased one of the circular saw-type accessories a while ago, and that one only attaches to specific angle grinders with a smooth, round, shoulder adjacent to the spindle (not that it can't be modified). The shoeplate area is large enough to allow attachment of other parts, such as a mounting base. Using a cutoff disk in the mentioned setup, the shoeplate and integral blade cover (like that of a circular saw) provide some protection from a shattered disk, should that situation arise, although it shouldn't when using fiber-reinforced disks. Like a circular saw, the depth of the blade exposure can be adjusted. Many folks tend to use angle grinders as if they were sanders.. using the face of the wheel. The fastest cutting action takes place as the wheel is shedding dull abrasive, at the edge of the wheel. When using the edge, the edge is constantly being renewed with fresh, sharp abrasive. When using the face/side of the wheel, the abrasive is free to dull and load up with paint, rust or grinding dust particles, which are all counterproductive to removing metal, while generating a lot of heat. When smoothing-type cuttig is desired, the user should switch to a flap disk or other abrasive product intended for smoothig a surface. In additionn to angle grinders being mounted as stationary machines, many other rotating machines/tools can be mouted to a base.. it's usually just a matter of fabricating a suitable base and a guard for the cutting apparatus. -- WB .......... "John Doe" wrote in message b.com... Generally speaking... Can you use an angle grinder instead of a bench grinder for some stationary grinding tasks? Any other smaller and lighter tool to do lesser tasks than what a bench grinder is normally used for? A rotary tool? Thanks. |
#11
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A lesser alternative to a bench grinder?
"Jim Wilkins" wrote in message ... "John Doe" wrote in message eb.com... "Stormin Mormon" cayoung61**spamblock## hotmail.com wrote: Many things I do by bench grinder, can do other ways. But, the bench grinder is excellent for sharpening drill bits, lawn mower blades, and other tasks. For me, it's bench space well used. What are you trying to accomplish? You fill the group with what you apparently think is creative silliness, and here you feign interest in providing an answer. Some of the other answers have satisfied, thanks anyway. -- So this is how you respond to your pleas for help. Killfile the stupid mother****ers. Both of them. |
#12
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A lesser alternative to a bench grinder?
I've had to filter at least a few people on usenet.
Sometimes I wonder what I'm missing. Then, I read some quoted text, and I no longer am curious. -- Christopher A. Young Learn more about Jesus www.lds.org .. "Steve B" wrote in message ... You fill the group with what you apparently think is creative silliness, and here you feign interest in providing an answer. Some of the other answers have satisfied, thanks anyway. -- So this is how you respond to your pleas for help. Killfile the stupid mother****ers. Both of them. |
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