Home |
Search |
Today's Posts |
|
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. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
I'm trying to improve the dust collection on my surface grinder and
hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories. 1. The traditional big funnel mounted to the table. http://www.kitmondo.com/images%5Clis...2294138886.jpg 2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement. http://www.suscom-maine.net/~nsimmons/news/Dust01.jpg http://www.suscom-maine.net/~nsimmons/news/Dust02.jpg 3. Vac-u-guard type hoods. These seem to be the choice for grinding graphite and other grinding which creates primarily fine dust. http://www.gandgmachinery.com/images/grinders/vacug.jpg The dust collector itself is a 3/4 HP Torit cabinet collector, which is, according to Torit, appropriate for a single surface grinder. Any feedback on your experience is appreciated. -- Ned Simmons |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
"Ned Simmons" wrote in message ... I'm trying to improve the dust collection on my surface grinder and hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories. 1. The traditional big funnel mounted to the table. http://www.kitmondo.com/images%5Clis...2294138886.jpg 2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement. http://www.suscom-maine.net/~nsimmons/news/Dust01.jpg http://www.suscom-maine.net/~nsimmons/news/Dust02.jpg 3. Vac-u-guard type hoods. These seem to be the choice for grinding graphite and other grinding which creates primarily fine dust. http://www.gandgmachinery.com/images/grinders/vacug.jpg The dust collector itself is a 3/4 HP Torit cabinet collector, which is, according to Torit, appropriate for a single surface grinder. Any feedback on your experience is appreciated. -- Ned Simmons Equip it with coolant and grind wet, not much dust then and things stay cooler. AWEM |
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement. http://www.suscom-maine.net/~nsimmons/news/Dust01.jpg http://www.suscom-maine.net/~nsimmons/news/Dust02.jpg You look to have a pretty good arrangement and good plan to improve. Just wondering, is your vacuum partly clogged? Pretty easy to do. I cleaned up my grinder vacuum and it went from worse than a shop vac to "suck the ball off the trailer hitch" vac. i found hair, lint, and milling swarf in mine. 'Course you could go wet, and have another whole set of issues. Karl |
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sat, 20 Jun 2009 13:56:35 -0400, Ned Simmons wrote:
I'm trying to improve the dust collection on my surface grinder As Andrew says and Karl almost says, look into putting some guards around the table and running wet. The only time you need dust extraction is when dressing a wheel really aggressively. The rest of the time, the coolant sweeps the fines up and dumps them in your coolant clarifier. You also get less "sucking up" of the work because it's kept nice and cool. If you have to stick with running dry, the main thing is to put the hood where the grit is going to be thrown into it already, without any help from the suction. The grit is coming off at 60mph. Anything you do with airflow is only going to help once the grit is already in the pipe. So have a hood that has steep enough angles that the grit won't bounce out and have it located so that it's almost touching the work. Then move the air through the pipes to keep the grit heading towards the cyclone. Mark Rand(don't have any dust extraction on the surface grinder, just coolant) RTFM |
#5
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sat, 20 Jun 2009 14:35:30 -0500, "Karl Townsend"
wrote: 2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement. http://www.suscom-maine.net/~nsimmons/news/Dust01.jpg http://www.suscom-maine.net/~nsimmons/news/Dust02.jpg You look to have a pretty good arrangement and good plan to improve. Just wondering, is your vacuum partly clogged? Pretty easy to do. I cleaned up my grinder vacuum and it went from worse than a shop vac to "suck the ball off the trailer hitch" vac. i found hair, lint, and milling swarf in mine. The collector has a near-new set of bags in it. I got it from a mold shop that used it for graphite before moving to a new building where they installed a central collection system. I removed the bags and vacuumed them. There's little difference in the apparent flow with the bags removed, so I'm pretty confident it's working properly. The flow is much greater than a shop vac. 'Course you could go wet, and have another whole set of issues. Yeah, despite the advantages of wet grinding, for the limited amount I use the grinder I'd rather see how well I can collect the dust before thinking about dealing with the sticky mist and coolant bugs. -- Ned Simmons |
#6
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sun, 21 Jun 2009 01:04:47 +0100, Mark Rand
wrote: On Sat, 20 Jun 2009 13:56:35 -0400, Ned Simmons wrote: I'm trying to improve the dust collection on my surface grinder As Andrew says and Karl almost says, look into putting some guards around the table and running wet. The only time you need dust extraction is when dressing a wheel really aggressively. The rest of the time, the coolant sweeps the fines up and dumps them in your coolant clarifier. You also get less "sucking up" of the work because it's kept nice and cool. It may come to that, I just hate having to deal with the coolant mess if I can avoid it. If you have to stick with running dry, the main thing is to put the hood where the grit is going to be thrown into it already, without any help from the suction. The grit is coming off at 60mph. Anything you do with airflow is only going to help once the grit is already in the pipe. So have a hood that has steep enough angles that the grit won't bounce out and have it located so that it's almost touching the work. That's what I've tried to do so far, but I underestimated the spread of the rooster tail of dust. I guess I'll make some quick and dirty pickups of PVC and cardboard to see how much improvement I can make. -- Ned Simmons |
#7
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 20, 9:34*pm, Ned Simmons wrote:
On Sun, 21 Jun 2009 01:04:47 +0100, Mark Rand wrote: On Sat, 20 Jun 2009 13:56:35 -0400, Ned Simmons wrote: I'm trying to improve the dust collection on my surface grinder As Andrew says and Karl almost says, look into putting some guards around the table and running wet. The only time you need dust extraction is when dressing a wheel really aggressively. The rest of the time, the coolant sweeps the fines up and dumps them in your coolant clarifier. You also get less "sucking up" of the work because it's kept nice and cool. It may come to that, I just hate having to deal with the coolant mess if I can avoid it. If you have to stick with running dry, the main thing is to put the hood where the grit is going to be thrown into it already, without any help from the suction. The grit is coming off at 60mph. Anything you do with airflow is only going to help once the grit is already in the pipe. So have a hood that has steep enough angles that the grit won't bounce out and have it located so that it's almost touching the work. That's what I've tried to do so far, but I underestimated the spread of the rooster tail of dust. I guess I'll make some quick and dirty pickups of PVC and cardboard to see how much improvement I can make. -- Ned Simmons I have an old Boyer Shultz 612 surface grinder, I've always used it dry, but I'm intrigued by the possibility of running it wet if it won't kill the spindle bearings. Anyone know if this machine can run with water based coolant or grinding oil? I have a Sioux valve grinder and it uses grinding oil, very little if any dust escapes and the parts being ground run cool. |
#8
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 20, 8:22*pm, Ned Simmons wrote:
On Sat, 20 Jun 2009 14:35:30 -0500, "Karl Townsend" wrote: 2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement. http://www.suscom-maine.net/~nsimmons/news/Dust01.jpg http://www.suscom-maine.net/~nsimmons/news/Dust02.jpg You look to have a pretty good arrangement and good plan to improve. Just wondering, is your vacuum partly clogged? Pretty easy to do. I cleaned up my grinder vacuum and it went from worse than a shop vac to "suck the ball off the trailer hitch" vac. i found hair, lint, and milling swarf in mine. The collector has a near-new set of bags in it. I got it from a mold shop that used it for graphite before moving to a new building where they installed a central collection system. I removed the bags and vacuumed them. There's little difference in the apparent flow with the bags removed, so I'm pretty confident it's working properly. The flow is much greater than a shop vac. 'Course you could go wet, and have another whole set of issues. Yeah, despite the advantages of wet grinding, for the limited amount I use the grinder I'd rather see how well I can collect the dust before thinking about dealing with the sticky mist and coolant bugs. -- Ned Simmons Dry rules. Unless you are set up for coolant...and its problems. TMT |
#9
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 20, 7:04*pm, Mark Rand wrote:
On Sat, 20 Jun 2009 13:56:35 -0400, Ned Simmons wrote: I'm trying to improve the dust collection on my surface grinder As Andrew says and Karl almost says, look into putting some guards around the table and running wet. The only time you need dust extraction is when dressing a wheel really aggressively. The rest of the time, the coolant sweeps the fines up and dumps them in your coolant clarifier. You also get less "sucking up" of the work because it's kept nice and cool. If you have to stick with running dry, the main thing is to put the hood where the grit is going to be thrown into it already, without any help from the suction. The grit is coming off at 60mph. Anything you do with airflow is only going to help once the grit is already in the pipe. So have a hood that has steep enough angles that the grit won't bounce out and have it located so that it's almost touching the work. Then move the air through the pipes to keep the grit heading towards the cyclone. Mark Rand(don't have any dust extraction on the surface grinder, just coolant) RTFM Mark is right..try to work with the dust. The Torit (I have one) is meant to pick up the extremely fine airborne dust. Which can and will drift everywhere including the ways of your lathe and mill. TMT |
#10
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sat, 20 Jun 2009 13:56:35 -0400, Ned Simmons
wrote: I'm trying to improve the dust collection on my surface grinder and hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories. 1. The traditional big funnel mounted to the table. http://www.kitmondo.com/images%5Clis...2294138886.jpg Snip Ned Simmons I have a 6x12 Boyar Schultz with the dust collector base. It came without a "funnel" or hose. I mocked up a collecting funnel out of cardboard, mimicking my recollection of the factory unit. My thinking was that Boyar Schultz had more experience in this area than I did. The unit works pretty well while grinding. The only noticeable grit "bounce back" comes from dressing. John Normile |
#11
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
Perhaps temporarily remove your collection nozzle and replace it with a
piece of cardboard faced with a sheet of witness paper (plain white paper) suitably mounted to the wheel shroud and perpendicular to the magnetic chuck. If this detects the particle strikes satisfactorily, grind a variety of materials, dress the wheel, etc with it in place. Then shape the intake of a new collection nozzle to encompass the accumulated particle spray pattern that has formed on the witness paper. David Merrill "Ned Simmons" wrote in message ... On Sun, 21 Jun 2009 01:04:47 +0100, Mark Rand wrote: If you have to stick with running dry, the main thing is to put the hood where the grit is going to be thrown into it already, without any help from the suction. The grit is coming off at 60mph. Anything you do with airflow is only going to help once the grit is already in the pipe. So have a hood that has steep enough angles that the grit won't bounce out and have it located so that it's almost touching the work. That's what I've tried to do so far, but I underestimated the spread of the rooster tail of dust. I guess I'll make some quick and dirty pickups of PVC and cardboard to see how much improvement I can make. -- Ned Simmons |
#12
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 21, 1:17*am, (John Normile) wrote:
On Sat, 20 Jun 2009 13:56:35 -0400, Ned Simmons wrote: I'm trying to improve the dust collection on my surface grinder and hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories. 1. The traditional big funnel mounted to the table. http://www.kitmondo.com/images%5Clis...2294138886.jpg Snip Ned Simmons I have a 6x12 Boyar Schultz with the dust collector base. * It came without a "funnel" or hose. * I mocked up a collecting funnel out of cardboard, mimicking my recollection of the factory unit. * My thinking was that Boyar Schultz had more experience in this area than I did. The unit works pretty well while grinding. * The only noticeable grit "bounce back" comes from dressing. John Normile After grinding at the end of the day....turn out the lights and shine a bright light beam across the shop. The amount of visibility of the beam tells you how good your dust collection capability is. Any fine dust is ending up on your lathe, mill and lungs. TMT |
#13
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sun, 21 Jun 2009 18:04:19 GMT, "David Merrill"
wrote: Perhaps temporarily remove your collection nozzle and replace it with a piece of cardboard faced with a sheet of witness paper (plain white paper) suitably mounted to the wheel shroud and perpendicular to the magnetic chuck. If this detects the particle strikes satisfactorily, grind a variety of materials, dress the wheel, etc with it in place. Then shape the intake of a new collection nozzle to encompass the accumulated particle spray pattern that has formed on the witness paper. I like it. Perhaps some stripes of Vaseline would catch the particles and better show the distribution of the spray. -- Ned Simmons |
#14
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 21, 9:50*pm, Ned Simmons wrote:
On Sun, 21 Jun 2009 18:04:19 GMT, "David Merrill" wrote: Perhaps temporarily remove your collection nozzle and replace it with a piece of cardboard faced with a sheet of witness paper (plain white paper) suitably mounted to the wheel shroud and perpendicular to the magnetic chuck. *If this detects the particle strikes satisfactorily, grind a variety of materials, dress the wheel, etc with it in place. *Then shape the intake of a new collection nozzle to encompass the accumulated particle spray pattern that has formed on the witness paper. I like it. Perhaps some stripes of Vaseline would catch the particles and better show the distribution of the spray. -- Ned Simmons |
#15
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 21, 9:50*pm, Ned Simmons wrote:
On Sun, 21 Jun 2009 18:04:19 GMT, "David Merrill" wrote: Perhaps temporarily remove your collection nozzle and replace it with a piece of cardboard faced with a sheet of witness paper (plain white paper) suitably mounted to the wheel shroud and perpendicular to the magnetic chuck. *If this detects the particle strikes satisfactorily, grind a variety of materials, dress the wheel, etc with it in place. *Then shape the intake of a new collection nozzle to encompass the accumulated particle spray pattern that has formed on the witness paper. I like it. Perhaps some stripes of Vaseline would catch the particles and better show the distribution of the spray. -- Ned Simmons Great idea. Note the size of the particles...different sizes go different distances. TMT |
#16
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 20, 12:56*pm, Ned Simmons wrote:
I'm trying to improve the dust collection on my surface grinder and hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories. 1. The traditional big funnel mounted to the table.http://www.kitmondo.com/images%5Clis...2294138886.jpg 2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement.http://www.suscom-maine.net/~nsimmon...ews/Dust02.jpg 3. Vac-u-guard type hoods. These seem to be the choice for grinding graphite and other grinding which creates primarily fine dust.http://www.gandgmachinery.com/images/grinders/vacug.jpg The dust collector itself is a 3/4 HP Torit cabinet collector, which is, according to Torit, appropriate for a single surface grinder. Any feedback on your experience is appreciated. -- Ned Simmons I have also seen where nonmagnetic shields with strong magnets mounted on a grinder to get wayward grindings. The shields are made such that the magnets can be easily removed so the grindings can be removed. TMT |
#17
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 20, 12:56*pm, Ned Simmons wrote:
I'm trying to improve the dust collection on my surface grinder and hoping to get some feedback on the various schemes I've seen. The setups I've seen fall into 3 general categories. 1. The traditional big funnel mounted to the table.http://www.kitmondo.com/images%5Clis...2294138886.jpg 2. Smaller scoops mounted to the column and positioned near the wheel and close to the chuck. I've experimented with this and it works quite well for fine grinding and the lighter particles from heavy grinding, but the heavier grit slips by. I suspect the air velocity is not high enough to deflect the heavy bits that are not headed toward the suction inlet. I don't think there's much to be done about the velocity, so the next thing I might try is to make the nozzle larger and perhaps aimed more downward towards the chuck to cover a wider spray of swarf. This the current arrangement.http://www.suscom-maine.net/~nsimmon...ews/Dust02.jpg 3. Vac-u-guard type hoods. These seem to be the choice for grinding graphite and other grinding which creates primarily fine dust.http://www.gandgmachinery.com/images/grinders/vacug.jpg The dust collector itself is a 3/4 HP Torit cabinet collector, which is, according to Torit, appropriate for a single surface grinder. Any feedback on your experience is appreciated. -- Ned Simmons Ned...another possibility. A friend of mine has his grinder on wheels and rolls it out on the driveway when he has substantial grinding to do. No dust cleanup required. Just don't shoot the dust out on to a white concrete driveway...it leaves a rust stain. ;) TMT |
#18
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Jun 21, 10:50*pm, Ned Simmons wrote:
On Sun, 21 Jun 2009 18:04:19 GMT, "David Merrill" wrote: Perhaps temporarily remove your collection nozzle and replace it with a piece of cardboard faced with a sheet of witness paper (plain white paper) suitably mounted to the wheel shroud and perpendicular to the magnetic chuck. *If this detects the particle strikes satisfactorily, grind a variety of materials, dress the wheel, etc with it in place. *Then shape the intake of a new collection nozzle to encompass the accumulated particle spray pattern that has formed on the witness paper. I like it. Perhaps some stripes of Vaseline would catch the particles and better show the distribution of the spray. -- Ned Simmons Hi Ned, I am an applications engineer and have been working for a variety of dust collector manufacturers for over 15 years. The best way to handle a small surface grinder is to incorporate the splash guard into a box like hood with sides and a roof. The roof would be your pick up hood or suction hood where you would mount a collar to attach a hose that you can run back to your collector. What is the width of the table, this will determine your hose size? The other method is a magnetic hood that can be attached to your wheel guard, this hood is closer to the source and can be used for dressing the wheel. Sometimes tolerances are critical on machines and the added weight will effect of the hood will effect the part tolerance. I currently work for a small dust or mist collector manufacturer and we can offer a collector depending on if you are filtering mist or dust or both? The company name is AER Control Systems, visit our products on the web at www.aercontrolsystems.com. If you would like to phone me, I can be reached at 866-265-2372 and we can discuss. Rob Gabelmann Applications Engineer AER Control Systems |
#19
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Mon, 22 Jun 2009 09:02:08 -0700 (PDT), rgabelmann
wrote: On Jun 21, 10:50*pm, Ned Simmons wrote: On Sun, 21 Jun 2009 18:04:19 GMT, "David Merrill" wrote: Perhaps temporarily remove your collection nozzle and replace it with a piece of cardboard faced with a sheet of witness paper (plain white paper) suitably mounted to the wheel shroud and perpendicular to the magnetic chuck. *If this detects the particle strikes satisfactorily, grind a variety of materials, dress the wheel, etc with it in place. *Then shape the intake of a new collection nozzle to encompass the accumulated particle spray pattern that has formed on the witness paper. I like it. Perhaps some stripes of Vaseline would catch the particles and better show the distribution of the spray. -- Ned Simmons Hi Ned, I am an applications engineer and have been working for a variety of dust collector manufacturers for over 15 years. The best way to handle a small surface grinder is to incorporate the splash guard into a box like hood with sides and a roof. The roof would be your pick up hood or suction hood where you would mount a collar to attach a hose that you can run back to your collector. What is the width of the table, this will determine your hose size? The other method is a magnetic hood that can be attached to your wheel guard, this hood is closer to the source and can be used for dressing the wheel. Sometimes tolerances are critical on machines and the added weight will effect of the hood will effect the part tolerance. I currently work for a small dust or mist collector manufacturer and we can offer a collector depending on if you are filtering mist or dust or both? The company name is AER Control Systems, visit our products on the web at www.aercontrolsystems.com. If you would like to phone me, I can be reached at 866-265-2372 and we can discuss. Rob Gabelmann Applications Engineer AER Control Systems Good stuff by the way. Gunner "Lenin called them "useful idiots," those people living in liberal democracies who by giving moral and material support to a totalitarian ideology in effect were braiding the rope that would hang them. Why people who enjoyed freedom and prosperity worked passionately to destroy both is a fascinating question, one still with us today. Now the useful idiots can be found in the chorus of appeasement, reflexive anti-Americanism, and sentimental idealism trying to inhibit the necessary responses to another freedom-hating ideology, radical Islam" Bruce C. Thornton, a professor of Classics at American University of Cal State Fresno |
#20
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Mon, 22 Jun 2009 08:59:30 -0700 (PDT), Too_Many_Tools
wrote: Ned...another possibility. A friend of mine has his grinder on wheels and rolls it out on the driveway when he has substantial grinding to do. I do that with my tool grinder and buffer/scotchbrite/wire wheel. They're mounted to the big barn doors on the shop -- if the weather is good I can swing the doors open so most of the mess stays outside. -- Ned Simmons |
#21
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Mon, 22 Jun 2009 09:02:08 -0700 (PDT), rgabelmann
wrote: Hi Ned, I am an applications engineer and have been working for a variety of dust collector manufacturers for over 15 years. The best way to handle a small surface grinder is to incorporate the splash guard into a box like hood with sides and a roof. The roof would be your pick up hood or suction hood where you would mount a collar to attach a hose that you can run back to your collector. This got me thinking. The nozzle I have now is pretty effective at sucking up the fines. The heavier grit that escapes is really just a nuisance near the grinder, I don't think any of it travels far enough to be a real problem. An enclosure like you've described would probably contain the bulk of the coarse stuff on the grinder table, even if it wasn't all sucked up by the collector. Is that typically how it works? -- Ned Simmons |
#22
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sat, 20 Jun 2009 21:18:31 -0700 (PDT), Too_Many_Tools
wrote: The Torit (I have one) is meant to pick up the extremely fine airborne dust. Which can and will drift everywhere including the ways of your lathe and mill. I think what I'm doing now is getting most of the dust that's prone to travel far enough to damage other machines, and I'm sure there's room for improvement. What's escaping seems to be more of a nuisance than a real problem, but as long as I've got that big collector running I'd like to suck up as much as I can. I've got some fresh ideas to try. Thanks to everyone who has responded. -- Ned Simmons |
#23
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Sat, 20 Jun 2009 21:08:49 -0700 (PDT), oldjag
wrote: I have an old Boyer Shultz 612 surface grinder, I've always used it dry, but I'm intrigued by the possibility of running it wet if it won't kill the spindle bearings. Hey Old Jag. Does your Boyer Schultz have the dust collector in the base? I need instructions on getting to the vacuum motor and also how to get the filter out to clean it. RWL |
#24
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Tue, 30 Jun 2009 22:15:38 -0400, GeoLane at PTD dot NET GeoLane at
PTD dot NET wrote: On Sat, 20 Jun 2009 21:08:49 -0700 (PDT), oldjag wrote: I have an old Boyer Shultz 612 surface grinder, I've always used it dry, but I'm intrigued by the possibility of running it wet if it won't kill the spindle bearings. Hey Old Jag. Does your Boyer Schultz have the dust collector in the base? I need instructions on getting to the vacuum motor and also how to get the filter out to clean it. RWL I got into the vacuum motor on a Boyar Schultz dust collector base a few years ago. The motor is accessed from the front of the cabinet. But firsr you must remove all the filter elements. The motor is in the rear corner. And a Boyar Schultz service man cautioned me NOT to wash the filter bags, as that would remove the fire retardent chemicals in the filters. |
#25
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
|
#27
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
GeoLane at PTD dot NET GeoLane at PTD dot NET wrote: How do you get the filters out of the way? I couldn't see how they were released. RWL .................................................. . (John Normile) wrote: running front to back that hold the filters in place. A flat "clamp strip" secures the filters. Once the clamp strip is removed, the filters lift out exposing the blower motor in the rear. .................................................. . Does your dust collector have hardware cloth spacers between each pleat, or is that something that some former owner has added? I loosened the thumb screws, but the right side of the cabinet blocks removing them as a whole unit. It looks like I might be able to work each pleat, one pleat at a time to the left to clear the door, but it's a tight squeeze and I was afraid of tearing the filter's cloth. Is that how you get it out? I took photos, but I haven't had an opportunity to upload them to the dropbox yet. RWL |
#28
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
I uploaded two pictures of the dust collector to the dropbox http://www.metalworking.com/dropbox/ They are listed as Boyer Schultz Dust filter 1.jpg and Boyer Schultz Dust filter 2.jpg As of 7:30 this morning, they're not there yet, but they should be by this evening when most of you guys will be reading. Getting the filter out so I can get to the motor is the main task at the moment. RWL |
#29
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On 2009-07-06, GeoLane at PTD dot NET GeoLane wrote:
I uploaded two pictures of the dust collector to the dropbox http://www.metalworking.com/dropbox/ They are listed as Boyer Schultz Dust filter 1.jpg and Boyer Schultz Dust filter 2.jpg Which of course, following the rules of the dropbox, have been renamed to Boyer_Schultz_Dust_filter_1.jpg and Boyer_Schultz_Dust_filter_2.jpg because embedded spaces in filenames are problematical on some systems. The images could have benefited from being reduced in size somewhat. The amount of detail is way over what is needed, and I had to shrink my image size to 30% to get it all to fit on the screen. As of 7:30 this morning, they're not there yet, but they should be by this evening when most of you guys will be reading. Getting the filter out so I can get to the motor is the main task at the moment. Is it possible to move the bracket with the thumbscrews on the left towards the left? The one on the right looks as though it is part of the sidewall in the photos, so it probably won't move. Good Luck, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#30
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Mon, 06 Jul 2009 07:21:23 -0400, GeoLane at PTD dot NET GeoLane at
PTD dot NET wrote: GeoLane at PTD dot NET GeoLane at PTD dot NET wrote: How do you get the filters out of the way? I couldn't see how they were released. RWL ................................................. . (John Normile) wrote: running front to back that hold the filters in place. A flat "clamp strip" secures the filters. Once the clamp strip is removed, the filters lift out exposing the blower motor in the rear. ................................................. . Does your dust collector have hardware cloth spacers between each pleat, or is that something that some former owner has added? I loosened the thumb screws, but the right side of the cabinet blocks removing them as a whole unit. It looks like I might be able to work each pleat, one pleat at a time to the left to clear the door, but it's a tight squeeze and I was afraid of tearing the filter's cloth. Is that how you get it out? I took photos, but I haven't had an opportunity to upload them to the dropbox yet. RWL It has been a number of years since I was into the dust collector, but the hardware screen looks familiar. I had to take them out one at a time. They go back in one at a time also. And I do remember it was a tight fit and a pain to R&R. John |
#31
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On 7 Jul 2009 04:32:25 GMT, "DoN. Nichols"
wrote: The images could have benefited from being reduced in size somewhat. You're right. Sorry about that. I wasnt' thinking when I uploaded them before work the other morning. Is it possible to move the bracket with the thumbscrews on the left towards the left? Unfortunately not. The bracket is welded in place. RWL |
#32
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
How do you get the filters out of the way? I couldn't see how they were released. RWL ................................................ .. It has been a number of years since I was into the dust collector, but the hardware screen looks familiar. I had to take them out one at a time. They go back in one at a time also. And I do remember it was a tight fit and a pain to R&R. John Did yours have a sheet of hardware cloth (1/2" coarse screen) between each of the pleats of the cloth filter? I'm suspicious that those are an add-on by some previous owner since the ends of the wires protrude a little and would seem as though they'd poke holes at the bottom of the pleats over time. RWL |
#33
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
On Tue, 07 Jul 2009 23:07:46 -0400, GeoLane at PTD dot NET GeoLane at
PTD dot NET wrote: How do you get the filters out of the way? I couldn't see how they were released. RWL ............................................... ... It has been a number of years since I was into the dust collector, but the hardware screen looks familiar. I had to take them out one at a time. They go back in one at a time also. And I do remember it was a tight fit and a pain to R&R. John Did yours have a sheet of hardware cloth (1/2" coarse screen) between each of the pleats of the cloth filter? I'm suspicious that those are an add-on by some previous owner since the ends of the wires protrude a little and would seem as though they'd poke holes at the bottom of the pleats over time. RWL I believe my machine had the wire screens. |
#34
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
replying to Ned Simmons, Chuck wrote:
I have used vac u guards for many years, unfortunately hard to come by -- for full context, visit http://www.polytechforum.com/metalwo...es-186219-.htm |
#35
Posted to rec.crafts.metalworking
|
|||
|
|||
Surface grinder dust collection strategies
If your vac is strong enough, it will suck up cutoffs and the grindings.
Mine do. Martin On 1/13/2017 9:43 AM, Chuck wrote: replying to Ned Simmons, Chuck wrote: I have used vac u guards for many years, unfortunately hard to come by |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Sanford Surface Grinder | Metalworking | |||
need Surface Grinder help | Metalworking | |||
Surface Grinder | Metalworking | |||
Using a surface grinder questions | Metalworking | |||
KO Lee 612 surface grinder questions | Metalworking |