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Bridgeport Mill Making Knocking Or Clicking Noise
A friend of mine has a Bridgeport knee mill making a loud clicking or knocking sound in the head. I could not find any obvious reason. So I sorta just said sorry man I can't find anything. Well about 2 weeks later Karma I guess, I have a large Jet knee mill 3 phase started doing the exact same thing..So I am telling myself the same thing, (sorry man can't find anything ). Has anybody got info as to a guess what it is ? I am not a machinist just a hobbiest. Thanks for any input you might offer.
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Bridgeport Mill Making Knocking Or Clicking Noise
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Bridgeport Mill Making Knocking Or Clicking Noise
On Saturday, March 18, 2017 at 12:51:08 AM UTC-4, wrote:
A friend of mine has a Bridgeport knee mill making a loud clicking or knocking sound in the head. I could not find any obvious reason. So I sorta just said sorry man I can't find anything. Well about 2 weeks later Karma I guess, I have a large Jet knee mill 3 phase started doing the exact same thing.So I am telling myself the same thing, (sorry man can't find anything ). Has anybody got info as to a guess what it is ? I am not a machinist just a hobbiest. Thanks for any input you might offer. It is not a Varispeed. |
Bridgeport Mill Making Knocking Or Clicking Noise
On 2017-03-18, wrote:
A friend of mine has a Bridgeport knee mill making a loud clicking or knocking sound in the head. I could not find any obvious reason. So I sorta just said sorry man I can't find anything. Well about 2 weeks later Karma I guess, I have a large Jet knee mill 3 phase started doing the exact same thing.So I am telling myself the same thing, (sorry man can't find anything ). Has anybody got info as to a guess what it is ? I am not a machinist just a hobbiest. Thanks for any input you might offer. Are these pure step-belt pulleys for speed control, or variable speed pulleys? If the latter, the moving half of each pulley has a black plastic (Delrin) sleeve inside it and a key on the shaft screwed to the inside of the pulley with a Delrin cover over it to minimize play and friction in the keyway. These eventually wear out, and need to be replaced. If you don't replace them, the key starts wearing the keyway in the shaft wider and wider, with a loud "CLACK" as the motor is started or stopped. If the step belt pulleys version -- I don't know, but perhaps the spline which couples the upper pulley to the spindle is dry and worn. Good Luck, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) 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 --- |
Bridgeport Mill Making Knocking Or Clicking Noise
On 19/03/2017 2:54 PM, DoN. Nichols wrote:
If the step belt pulleys version -- I don't know, but perhaps the spline which couples the upper pulley to the spindle is dry and worn. If the bearings in the front pulley are worn, belt tension can pull the face coupling out of alignment. This will cause a knocking sound in direct drive, that will go away in back gear. Had a Millport with this problem. Jon --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Bridgeport Mill Making Knocking Or Clicking Noise
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Bridgeport Mill Making Knocking Or Clicking Noise
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Bridgeport Mill Making Knocking Or Clicking Noise
DoN. Nichols wrote:
If the step belt pulleys version -- I don't know, but perhaps the spline which couples the upper pulley to the spindle is dry and worn. OK, two more things to think of. If the spindle spline is badly worn, it will clatter when taking short (as in along the length of the cutter) cuts. What I mean here is that the cutting flute is not continuously cutting workpiece material, like when cutting 1/8" sheet with a 1" end mill, for instance. Each cutter flute digs in and the comes free. This will rattle the spline. Easy to check, just twiddle the spindle nose and see how much it can be turned CW/CCW before it hits the other side of the driving spline. This will generally only rattle when cutting, and run totally quiet when running without cutting. One other thing is a shot V belt. If the V belt has started to break down in one spot, it will ride lower in the pulley V groove. As the thin spot alternately rounds the driven, then the driving pulley, it will cause large speed-up/slow-down of the spindle. It can actually start the whole machine shaking! I saw this on a lathe once, it was QUITE dramatic. Jon |
Bridgeport Mill Making Knocking Or Clicking Noise
On Monday, March 20, 2017 at 3:17:43 PM UTC-4, Jon Elson wrote:
DoN. Nichols wrote: If the step belt pulleys version -- I don't know, but perhaps the spline which couples the upper pulley to the spindle is dry and worn. OK, two more things to think of. If the spindle spline is badly worn, it will clatter when taking short (as in along the length of the cutter) cuts. What I mean here is that the cutting flute is not continuously cutting workpiece material, like when cutting 1/8" sheet with a 1" end mill, for instance. Each cutter flute digs in and the comes free. This will rattle the spline. Easy to check, just twiddle the spindle nose and see how much it can be turned CW/CCW before it hits the other side of the driving spline. This will generally only rattle when cutting, and run totally quiet when running without cutting. One other thing is a shot V belt. If the V belt has started to break down in one spot, it will ride lower in the pulley V groove. As the thin spot alternately rounds the driven, then the driving pulley, it will cause large speed-up/slow-down of the spindle. It can actually start the whole machine shaking! I saw this on a lathe once, it was QUITE dramatic. Jon I apologize for jumping in without having followed the entire thread, but has anyone suggested that it could be as simple as a cracked bearing ball? -- Ed Huntress |
Bridgeport Mill Making Knocking Or Clicking Noise
"Jon Elson" wrote in message ... wrote: On Saturday, March 18, 2017 at 12:51:08 AM UTC-4, wrote: A friend of mine has a Bridgeport knee mill making a loud clicking or knocking sound in the head. I could not find any obvious reason. So I sorta just said sorry man I can't find anything. Well about 2 weeks later Karma I guess, I have a large Jet knee mill 3 phase started doing the exact same thing.So I am telling myself the same thing, (sorry man can't find anything ). Has anybody got info as to a guess what it is ? I am not a machinist just a hobbiest. Thanks for any input you might offer. On top is the lever arm that rotates a ring with two grooves at an angle in which there are pins attached to the part that engages the low range gears. When the lever is moved to high range these pins pull up on the engagement cogs for low range. These pins can work loose enough that the cogs are not fully disengaged in high. That's the rattle you hear, the cogs hitting each other ever so slightly. phil k. |
Bridgeport Mill Making Knocking Or Clicking Noise
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Bridgeport Mill Making Knocking Or Clicking Noise
On Tuesday, March 21, 2017 at 5:28:20 PM UTC-4, Jon Elson wrote:
wrote: I apologize for jumping in without having followed the entire thread, but has anyone suggested that it could be as simple as a cracked bearing ball? Oh, I think a cracked ball will go from bad to worse at a very rapid pace. Possibly a dinged ball in the backgear assembly (like when it ran over the bits of the retainer cage) could just get noisy and stay that way for a long time. That's the kind of shape my back gear bearings were in, and they generally made a loud whirring noise. But, a really cracked in half ball ought to be fairly disasterous. Jon I was thinking of my old drill press, which had a cracked ball (not cracked in half, but badly chipped -- last replaced in 1948) which made a "tick, tick" sound. -- Ed Huntress |
Bridgeport Mill Making Knocking Or Clicking Noise
"Phil Kangas" wrote in message "Jon Elson" wrote in message ... wrote: On Saturday, March 18, 2017 at 12:51:08 AM UTC-4, wrote: A friend of mine has a Bridgeport knee mill making a loud clicking or knocking sound in the head. I could not find any obvious reason. So I sorta just said sorry man I can't find anything. Well about 2 weeks later Karma I guess, I have a large Jet knee mill 3 phase started doing the exact same thing.So I am telling myself the same thing, (sorry man can't find anything ). Has anybody got info as to a guess what it is ? I am not a machinist just a hobbiest. Thanks for any input you might offer. On top is the lever arm that rotates a ring with two grooves at an angle in which there are pins attached to the part that engages the low range gears. When the lever is moved to high range these pins pull up on the engagement cogs for low range. These pins can work loose enough that the cogs are not fully disengaged in high. That's the rattle you hear, the cogs hitting each other ever so slightly. phil k. I posted a response because this is what happened on my Millport. Call it first hand info not speculation. If it rattles only in high range then that's it. phil k. |
Bridgeport Mill Making Knocking Or Clicking Noise
On Tue, 21 Mar 2017 16:29:15 -0500, Jon Elson
wrote: wrote: I apologize for jumping in without having followed the entire thread, but has anyone suggested that it could be as simple as a cracked bearing ball? Oh, I think a cracked ball will go from bad to worse at a very rapid pace. Possibly a dinged ball in the backgear assembly (like when it ran over the bits of the retainer cage) could just get noisy and stay that way for a long time. That's the kind of shape my back gear bearings were in, and they generally made a loud whirring noise. But, a really cracked in half ball ought to be fairly disasterous. Jon Bridgeport heads are not loaded heavily enough to crack a ball. So it one was busted..it was a flawed ball...and they are very very rare. Did the OP track down the noise with the screwdriver stethescope? Where was its home? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Bridgeport Mill Making Knocking Or Clicking Noise
On 3/21/2017 6:14 PM, Gunner Asch wrote:
On Tue, 21 Mar 2017 16:29:15 -0500, Jon Elson wrote: wrote: I apologize for jumping in without having followed the entire thread, but has anyone suggested that it could be as simple as a cracked bearing ball? Oh, I think a cracked ball will go from bad to worse at a very rapid pace. Possibly a dinged ball in the backgear assembly (like when it ran over the bits of the retainer cage) could just get noisy and stay that way for a long time. That's the kind of shape my back gear bearings were in, and they generally made a loud whirring noise. But, a really cracked in half ball ought to be fairly disasterous. Jon Bridgeport heads are not loaded heavily enough to crack a ball. So it one was busted..it was a flawed ball...and they are very very rare. Did the OP track down the noise with the screwdriver stethescope? Where was its home? gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. |
Bridgeport Mill Making Knocking Or Clicking Noise
On Tue, 21 Mar 2017 22:36:06 -0700, Gary Chamberlain
wrote: On 3/21/2017 6:14 PM, Gunner Asch wrote: On Tue, 21 Mar 2017 16:29:15 -0500, Jon Elson wrote: wrote: I apologize for jumping in without having followed the entire thread, but has anyone suggested that it could be as simple as a cracked bearing ball? Oh, I think a cracked ball will go from bad to worse at a very rapid pace. Possibly a dinged ball in the backgear assembly (like when it ran over the bits of the retainer cage) could just get noisy and stay that way for a long time. That's the kind of shape my back gear bearings were in, and they generally made a loud whirring noise. But, a really cracked in half ball ought to be fairly disasterous. Jon Bridgeport heads are not loaded heavily enough to crack a ball. So it one was busted..it was a flawed ball...and they are very very rare. Did the OP track down the noise with the screwdriver stethescope? Where was its home? gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. I heard a report that Wieber was rushed to the ER after a freak accident. Seems he was confused about which end of his screwdriver stethoscope was which. In addition to the hearing loss, the fluid leak was lapped up by a few dogs, causing them to be "adopted out," if you know what I mean. BTW, here's an "engineering" tip: I store my 7 to 13 screwdriver stethoscopes with the correct end out of harms way in a sort of hammock made from something I found on sale for $1.99 at HF. Not sure what it was supposed to be, but it's various bits of tubing connected together. There are also some plastic gizmos that can be repurposed as earplugs if you block the little holes in them. |
Bridgeport Mill Making Knocking Or Clicking Noise
"Caroline Says" Gary Chamberlain gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. I heard a report that Wieber was rushed to the ER after a freak accident. Seems he was confused about which end of his screwdriver stethoscope was which. In addition to the hearing loss, the fluid leak was lapped up by a few dogs, causing them to be "adopted out," if you know what I mean. BTW, here's an "engineering" tip: I store my 7 to 13 screwdriver stethoscopes with the correct end out of harms way in a sort of hammock made from something I found on sale for $1.99 at HF. Not sure what it was supposed to be, but it's various bits of tubing connected together. There are also some plastic gizmos that can be repurposed as earplugs if you block the little holes in them. Caroline and Gary, what do you two jackasses have to contribute to the original question of this thread? We are sick and tired of people like you two verbally assaulting a long time contributor to this group. So, you two and others like you can just go **** yourselves to death and do us a favor. Useless *******s.... I'll bet you're on welfare. You are the 'stunningly stupid losers' in this thread. phil k. |
Bridgeport Mill Making Knocking Or Clicking Noise
On Wed, 22 Mar 2017 11:05:57 -0400, "Phil Kangas"
wrote: "Caroline Says" Gary Chamberlain gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. I heard a report that Wieber was rushed to the ER after a freak accident. Seems he was confused about which end of his screwdriver stethoscope was which. In addition to the hearing loss, the fluid leak was lapped up by a few dogs, causing them to be "adopted out," if you know what I mean. BTW, here's an "engineering" tip: I store my 7 to 13 screwdriver stethoscopes with the correct end out of harms way in a sort of hammock made from something I found on sale for $1.99 at HF. Not sure what it was supposed to be, but it's various bits of tubing connected together. There are also some plastic gizmos that can be repurposed as earplugs if you block the little holes in them. Caroline and Gary, what do you two jackasses have to contribute to the original question of this thread? I am contributing engineering. In fact, I am considering forming an entire company of engineers. We will gather scrap and resell it. Yes, I realize that you might expect us to call it something other than engineering, but that sounds better and the term is well accepted in this newsgroup. We are sick and tired of people Yeah, I know the feeling. You wouldn't believe the hypocritical freeloaders out there. Sucking on the public teat, admitting they refuse to pay taxes unless forced, and insisting they're having me and millions of others killed. Worse, most bystanders do jack **** other than whine pointlessly that I should keep quiet so that they aren't forced to read my posts. like you two verbally assaulting a long time contributor to this group. Too bad the contributions included so much asinine politics and lying and death threats. Oh wait, maybe you missed that stuff? Manufacture those rose colored glasses, you'll make a fortune. BTW, did you notice how nice this newsgroup was recently when a certain long time contributor was MIA? So, you two and others like you can just go **** yourselves to death and do us a favor. LOL Way to keep up the high standards. Useless *******s.... I'll bet you're on welfare. How much do you have to bet? I'm in for any amount you'd like to put up. Check with Ed Huntress, he's seen some picture of my welfare abode. You are the 'stunningly stupid losers' in this thread. phil k. And yet, I won't be losing any bets to you, right? |
Bridgeport Mill Making Knocking Or Clicking Noise
On Wed, 22 Mar 2017 07:36:02 -0700, Caroline Says wrote:
On Tue, 21 Mar 2017 22:36:06 -0700, Gary Chamberlain wrote: On 3/21/2017 6:14 PM, Gunner Asch wrote: On Tue, 21 Mar 2017 16:29:15 -0500, Jon Elson wrote: wrote: I apologize for jumping in without having followed the entire thread, but has anyone suggested that it could be as simple as a cracked bearing ball? Oh, I think a cracked ball will go from bad to worse at a very rapid pace. Possibly a dinged ball in the backgear assembly (like when it ran over the bits of the retainer cage) could just get noisy and stay that way for a long time. That's the kind of shape my back gear bearings were in, and they generally made a loud whirring noise. But, a really cracked in half ball ought to be fairly disasterous. Jon Bridgeport heads are not loaded heavily enough to crack a ball. So it one was busted..it was a flawed ball...and they are very very rare. Did the OP track down the noise with the screwdriver stethescope? Where was its home? gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. I heard a report that Wieber was rushed to the ER after a freak accident. Seems he was confused about which end of his screwdriver stethoscope was which. In addition to the hearing loss, the fluid leak was lapped up by a few dogs, causing them to be "adopted out," if you know what I mean. That is a lie! It was only an infection caused by ear mites. Everybody gets them now and then. shrug And there's nothing wrong with my 20 dogs either. Im not trying to brag snicker but how many dogs do you have...Hmmm? Sucks to be you. BTW, here's an "engineering" tip: I store my 7 to 13 screwdriver stethoscopes with the correct end out of harms way in a sort of hammock made from something I found on sale for $1.99 at HF. Not sure what it was supposed to be, but it's various bits of tubing connected together. There are also some plastic gizmos that can be repurposed as earplugs if you block the little holes in them. You think your funny, but I know all the best stethoscopes. The one your talking about isnt 2 bucks its four! And I can prove it. http://www.harborfreight.com/mechani...ope-69913.html Who has that kind of money? Cash is very... very tight right now. shrug So screw you pustilant leftist! Im submitting your name to the listkeepers again. VBG When the People drag you out and hang you from a bit of barbed wire after kicking you off a lawn chair..Ill be very happy. In fact..I hope the doers send me a video clip of your ending. Knowing you were disposed of, along with the many thousands of your bretheren..and knowing that you will be gone into a mass grave somewhere along with the rest of the trash who have tried so hard to ruin America..will allow me to believe that America will indeed survive Get your affairs in order you mentally ill welfare queen. Gunner, Coyote Engineering Machinery Repair Tech. --- This pomegranate has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
Bridgeport Mill Making Knocking Or Clicking Noise
On Wednesday, March 22, 2017 at 11:05:58 AM UTC-4, Phil Kangas wrote:
"Caroline Says" Gary Chamberlain gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. I heard a report that Wieber was rushed to the ER after a freak accident. Seems he was confused about which end of his screwdriver stethoscope was which. In addition to the hearing loss, the fluid leak was lapped up by a few dogs, causing them to be "adopted out," if you know what I mean. BTW, here's an "engineering" tip: I store my 7 to 13 screwdriver stethoscopes with the correct end out of harms way in a sort of hammock made from something I found on sale for $1.99 at HF. Not sure what it was supposed to be, but it's various bits of tubing connected together. There are also some plastic gizmos that can be repurposed as earplugs if you block the little holes in them. Caroline and Gary, what do you two jackasses have to contribute to the original question of this thread? We are sick and tired of people like you two verbally assaulting a long time contributor to this group. So, you two and others like you can just go **** yourselves to death and do us a favor. Useless *******s.... I'll bet you're on welfare. You are the 'stunningly stupid losers' in this thread. phil k. +1000 |
Bridgeport Mill Making Knocking Or Clicking Noise
On Wed, 22 Mar 2017 10:52:52 -0700 (PDT), Garrett Fulton
wrote: On Wednesday, March 22, 2017 at 11:05:58 AM UTC-4, Phil Kangas wrote: "Caroline Says" Gary Chamberlain gummer was back at his squat by 6:00pm this evening, as his reply above shows. It's very odd he hasn't made any of his usual intemperate and absurd replies to the posts elaborating what a stunningly stupid loser he is. I know he has seen those posts. I wonder if maybe - just maybe - the message of what a massive loser he is has finally struck home, and he realizes there's no denying it? It seems highly improbable, but I suppose stranger acceptances of reality have occurred previously. I heard a report that Wieber was rushed to the ER after a freak accident. Seems he was confused about which end of his screwdriver stethoscope was which. In addition to the hearing loss, the fluid leak was lapped up by a few dogs, causing them to be "adopted out," if you know what I mean. BTW, here's an "engineering" tip: I store my 7 to 13 screwdriver stethoscopes with the correct end out of harms way in a sort of hammock made from something I found on sale for $1.99 at HF. Not sure what it was supposed to be, but it's various bits of tubing connected together. There are also some plastic gizmos that can be repurposed as earplugs if you block the little holes in them. Caroline and Gary, what do you two jackasses have to contribute to the original question of this thread? We are sick and tired of people like you two verbally assaulting a long time contributor to this group. So, you two and others like you can just go **** yourselves to death and do us a favor. Useless *******s.... I'll bet you're on welfare. You are the 'stunningly stupid losers' in this thread. phil k. +1000 Still waiting for anyone who agrees I'm on welfare to put their money where their mouth is. Oh, and +1001 1/4" lock washers. metalworking content Lock Washer Engineering, (division of Taft Aerospace and Marketing Strategy) --- This kumquat has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
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