Re: [Emc-users] Chinese grease zerk. 6mm
On Sun, Feb 10, 2013 at 12:11 PM, Gene Heskett ghesk...@wdtv.com wrote: On Sunday 10 February 2013 11:55:13 Andy Pugh did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On 10 Feb 2013, at 14:05, Gene Heskett ghesk...@wdtv.com wrote: So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will Turn a cup shape on the lathe, part off to the desired thickness. I wouldn't try for exact thickness, in fact I would shim the outer races and adjust the nip with the nut. Its feels like both inner and outer races are touching each other when assembled in the direction they were installed. Both bearings are installed into the block from the nut end, with nothing between either set of races ATM. I could turn them around though, which would mean that spacing the outers would achieve the same effect, and that would then allow the nut to adjust the preload. In that event, even a 20 thou thick spacer would be fine. If it wasn't for the thin face on the outers when assembled that way, its only about .55mm wide on that side. But it should work. So, put one bearing in with the thicker outer edge facing left, a dab of grease to hold a formed piece of 30 gage kynar wire stripped, laid in the grease and push the 2nd bearing in to trap the angular and the nut, which has a set-screw for locking, brought up to put some pressure on the inners, sound like that would work just fine. That wire wire is too thick, but it will cold flow some, so if the nut is snugged up, eventually it should be able for the wire to support the loading for a long time. Sounds like a winner to me Andy, thanks. I'll check in later when I've tried it. Cheers, Gene Or maybe use a Belleville washer? Mark -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Monday 11 February 2013 11:26:56 Mark Wendt did opine: On Sun, Feb 10, 2013 at 12:11 PM, Gene Heskett ghesk...@wdtv.com wrote: On Sunday 10 February 2013 11:55:13 Andy Pugh did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On 10 Feb 2013, at 14:05, Gene Heskett ghesk...@wdtv.com wrote: So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will Turn a cup shape on the lathe, part off to the desired thickness. I wouldn't try for exact thickness, in fact I would shim the outer races and adjust the nip with the nut. Its feels like both inner and outer races are touching each other when assembled in the direction they were installed. Both bearings are installed into the block from the nut end, with nothing between either set of races ATM. I could turn them around though, which would mean that spacing the outers would achieve the same effect, and that would then allow the nut to adjust the preload. In that event, even a 20 thou thick spacer would be fine. If it wasn't for the thin face on the outers when assembled that way, its only about .55mm wide on that side. But it should work. So, put one bearing in with the thicker outer edge facing left, a dab of grease to hold a formed piece of 30 gage kynar wire stripped, laid in the grease and push the 2nd bearing in to trap the angular and the nut, which has a set-screw for locking, brought up to put some pressure on the inners, sound like that would work just fine. That wire wire is too thick, but it will cold flow some, so if the nut is snugged up, eventually it should be able for the wire to support the loading for a long time. Sounds like a winner to me Andy, thanks. I'll check in later when I've tried it. Cheers, Gene Or maybe use a Belleville washer? Mark Physical size differences between the sides at contact points would seem to preclude even considering that. What I did was to install the bearings such that pressure from the shaft nut would preload them if the outer races were prevented from touching, in this case by a single turn of 20 gage copper wire formed into a loop and placed between the wider, now in the center, faces of the outer races. The end cap is then installed and brought to so as to crush the wire between the two outer races, leaving a barely visible gap between the bearing block and the cap, 5 thou or thereabouts, then the shaft nut installed and brought up snug on those fine threads, and preloaded and additional quarter of a turn. There is a black iron spacer on the shaft on each side of the bearing pair, and an oil seal, on in the back face of the block, and one in the bearing cap. It feels like the bearings are probably stretching the outer races a small amount, but the bearing block restrains them from growing by more than .0005 as its a very snug fit, taking considerable care to walk them out of the housing, and best done by removing the cap and turning the screw in the hard to move nut, pushing them out as a package. If my preload pressure winds up destroying these bearings, I would imagine that an angled tapered roller, with half again as many rollers could probably be refitted. The measured end play is now about 0.0017, but since the bearings are now preloaded to several hundred lbs, I have no clue where the rest of it is. The bearing block itself isn't moving that my 30-0-30 dial indicator can see. At the top of the QC tool post, its a red one above 0.004, with that growth being the carriage, now tail heavy with the triple stack X motor hanging off the back about 3.5 to its front face, causing the V way up front to rise till the adjuster bars are in solid contact with the bottom face of the way. Those adjustments on the rear of the carriage are easily done although inconvenient to get to, but on the front, doing it right will require the apron (its new, big block of ALU) to be removed, and the allen wrench ground down another 1/8 shorter to gain access to those cap screws over the screw as it goes by. I suspect the cap screw on the right needs pulled up another 2 or 3 degrees, its leaving a noticeably thicker layer of vactra on the way faces back there. Overall, its doing a much better job than before. I need to reset the HOME_OFFSET in the [AXIS0] block to make it cut about half a thou smaller, and that will then be spot on. But because I am calibrating HOME against the tip of the tool, and I now have the HOME_SEQUENCE setup, I do a lot of HOME_ALL's, on purpose, so if I could do away with that (unprintable) requester that pops up when you do it again, it would be a lot less mouse work. BTW, for whoever on IRC said the keyboard combo to home was ctl+h, thats wrong, its cntl+home. :) For someone like me, it would be a boon to have two
Re: [Emc-users] Chinese grease zerk. 6mm
On Sat, Feb 9, 2013 at 7:15 PM, Steve Blackmore st...@pilotltd.net wrote: That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for-the-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore Steve, Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Gene, check the link for the image of the two type oil fittings at the bottom of Steve's link. Does your zerk look like either of those? Mark -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sunday 10 February 2013 08:34:10 Mark Wendt did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On Sat, Feb 9, 2013 at 7:15 PM, Steve Blackmore st...@pilotltd.net wrote: That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for-t he-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore Steve, Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Gene, check the link for the image of the two type oil fittings at the bottom of Steve's link. Does your zerk look like either of those? Mark The photo isn't as clear as it could be. However folks, we aren't talking about a high speed spindle. This is a ball nut on a 16x5mm screw, that I was able to get 60 ipm rapids out of last night with a 2/1 geardown so the motor is charging right along, thinking I was home free, but the backlash setting I needed was excessive IMO, someplace in the .0045 to .0048 range, which seemed awful sloppy for a ball screw that was supposedly a C7 grade. Turns out there is zero preload on the angular ball bearings in the drive end bearing block regardless of the torque applied to the tensioning nut. So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will then be preloaded about a thou. Or is that too much crush? .1mm is the thinest I can get, but that will only take up about 60% of the end play which as is, looks to be as above, measured on either end of the screw. Besides, the grease fitting has been replaced with a Murican version (finding that turned into an all afternoon job Thursday) and the nut has been greased enough to push a small amount past the felt (or whatever, its white, wipers at each end of the nut. Since its maxed at maybe 300 rpm, std lithium grease will make it outlive me. It turns out, in my tour of the place looking for suitable shim material, that the alu slider on a 3.5 floppy disk is about that thickness. But cutting a shim out of that would probably be an EDM job to do it neat enough without burrs on the edges. Unless somebody else has an idea. McMaster-Carr has them in either 316 or 18-8 SS, straddling a $10 bill but whats their minimum order? More than a tenner IIRC. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml Don't let your mind wander -- it's too little to be let out alone. I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
Mark; On 2013-02-10, at 7:45 AM, Mark Wendt wrote: Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Hey, I did this. My small lathe (Emco Compact-8) has grease fittings, and the instruction manual says where to grease and/or oil. My larger British lathe came pre-greased, in the same areas that the Compact-8 uses grease, so it seemed fairly natural. Have been (slowly) flushing the grease out of the system; it is well oiled now. Only one fitting can not be greased; I think I'll have to take the apron off and really see what's happening. (the fitting is right beside the threading lever, and it's either a tapped hole for a stop that someone put a fitting on by mistake/mischief, or it's blocked. Not a lot of threading done on the lathe) My oil gun is a jet lever grease gun, bottom cut off and plugged; so where the spring plunger is is blanked off. To use it I invert the gun, so grease goes into the lever mechanism and gets squirted in. The quick change gearbox leaks oil, so lots of maintenance on the list for this lathe; I'd like the gearbox to hold oil, and I'd like to just clean up the apron. John A. Stewart. -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On 2/10/2013 9:05 AM, Gene Heskett wrote: On Sunday 10 February 2013 08:34:10 Mark Wendt did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On Sat, Feb 9, 2013 at 7:15 PM, Steve Blackmorest...@pilotltd.net wrote: That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for-t he-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore Steve, Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Gene, check the link for the image of the two type oil fittings at the bottom of Steve's link. Does your zerk look like either of those? Mark The photo isn't as clear as it could be. However folks, we aren't talking about a high speed spindle. This is a ball nut on a 16x5mm screw, that I was able to get 60 ipm rapids out of last night with a 2/1 geardown so the motor is charging right along, thinking I was home free, but the backlash setting I needed was excessive IMO, someplace in the .0045 to .0048 range, which seemed awful sloppy for a ball screw that was supposedly a C7 grade. Turns out there is zero preload on the angular ball bearings in the drive end bearing block regardless of the torque applied to the tensioning nut. So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will then be preloaded about a thou. Or is that too much crush? .1mm is the thinest I can get, but that will only take up about 60% of the end play which as is, looks to be as above, measured on either end of the screw. Besides, the grease fitting has been replaced with a Murican version (finding that turned into an all afternoon job Thursday) and the nut has been greased enough to push a small amount past the felt (or whatever, its white, wipers at each end of the nut. Since its maxed at maybe 300 rpm, std lithium grease will make it outlive me. It turns out, in my tour of the place looking for suitable shim material, that the alu slider on a 3.5 floppy disk is about that thickness. But cutting a shim out of that would probably be an EDM job to do it neat enough without burrs on the edges. Unless somebody else has an idea. McMaster-Carr has them in either 316 or 18-8 SS, straddling a $10 bill but whats their minimum order? More than a tenner IIRC. Cheers, Gene I don't know what Gene's fittings looked like, but if you look at this page, the top brass fitting looks somewhat like a conventional zerk fitting, but to me, the nipple looks a little long. http://factory.dhgate.com/other-auto-parts/10-1-straight-grease-zerk/grease-fitting-p43044204.html Scroll down and you will see some straight fittings that are truly straight on the sides of the nipple. I have no idea why a straight grease fitting would be a good idea, but I've seen fitting such as these on Chinese hydraulic jacks and some other Chinese equipment. Apparently you hold a grease gun against the fitting?? But those do not work at all with a conventional grease gun. http://factory.dhgate.com/other-auto-parts/10-1-straight-grease-zerk/grease-fitting-p43044204.html I think this company should hire a more competent translator. Dave -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sunday 10 February 2013 09:56:28 Dave did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On 2/10/2013 9:05 AM, Gene Heskett wrote: On Sunday 10 February 2013 08:34:10 Mark Wendt did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On Sat, Feb 9, 2013 at 7:15 PM, Steve Blackmorest...@pilotltd.net wrote: That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for -t he-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore Steve, Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Gene, check the link for the image of the two type oil fittings at the bottom of Steve's link. Does your zerk look like either of those? Mark The photo isn't as clear as it could be. However folks, we aren't talking about a high speed spindle. This is a ball nut on a 16x5mm screw, that I was able to get 60 ipm rapids out of last night with a 2/1 geardown so the motor is charging right along, thinking I was home free, but the backlash setting I needed was excessive IMO, someplace in the .0045 to .0048 range, which seemed awful sloppy for a ball screw that was supposedly a C7 grade. Turns out there is zero preload on the angular ball bearings in the drive end bearing block regardless of the torque applied to the tensioning nut. So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will then be preloaded about a thou. Or is that too much crush? .1mm is the thinest I can get, but that will only take up about 60% of the end play which as is, looks to be as above, measured on either end of the screw. Besides, the grease fitting has been replaced with a Murican version (finding that turned into an all afternoon job Thursday) and the nut has been greased enough to push a small amount past the felt (or whatever, its white, wipers at each end of the nut. Since its maxed at maybe 300 rpm, std lithium grease will make it outlive me. It turns out, in my tour of the place looking for suitable shim material, that the alu slider on a 3.5 floppy disk is about that thickness. But cutting a shim out of that would probably be an EDM job to do it neat enough without burrs on the edges. Unless somebody else has an idea. McMaster-Carr has them in either 316 or 18-8 SS, straddling a $10 bill but whats their minimum order? More than a tenner IIRC. Cheers, Gene I don't know what Gene's fittings looked like, but if you look at this page, the top brass fitting looks somewhat like a conventional zerk fitting, but to me, the nipple looks a little long. http://factory.dhgate.com/other-auto-parts/10-1-straight-grease-zerk/gre ase-fitting-p43044204.html Scroll down and you will see some straight fittings that are truly straight on the sides of the nipple. I have no idea why a straight grease fitting would be a good idea, but I've seen fitting such as these on Chinese hydraulic jacks and some other Chinese equipment. Apparently you hold a grease gun against the fitting?? But those do not work at all with a conventional grease gun. http://factory.dhgate.com/other-auto-parts/10-1-straight-grease-zerk/gre ase-fitting-p43044204.html I think this company should hire a more competent translator. Dave Yeah, there's some real NSFW's there. Anyway: http://factory.dhgate.com/other-auto-parts/10-1-straight-grease- zerk/grease-fitting-p43044204.html Slide down to the bottom pix, and while the thread is obviously not a 6mm, note that the profile below the major diameter isn't convex, but concave. Put a 7mm hex and 6x1 bottom on it and it would look pretty close. It is actually
Re: [Emc-users] Chinese grease zerk. 6mm
On 10 Feb 2013, at 14:05, Gene Heskett ghesk...@wdtv.com wrote: So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will Turn a cup shape on the lathe, part off to the desired thickness. I wouldn't try for exact thickness, in fact I would shim the outer races and adjust the nip with the nut. -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sunday 10 February 2013 11:55:13 Andy Pugh did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On 10 Feb 2013, at 14:05, Gene Heskett ghesk...@wdtv.com wrote: So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will Turn a cup shape on the lathe, part off to the desired thickness. I wouldn't try for exact thickness, in fact I would shim the outer races and adjust the nip with the nut. Its feels like both inner and outer races are touching each other when assembled in the direction they were installed. Both bearings are installed into the block from the nut end, with nothing between either set of races ATM. I could turn them around though, which would mean that spacing the outers would achieve the same effect, and that would then allow the nut to adjust the preload. In that event, even a 20 thou thick spacer would be fine. If it wasn't for the thin face on the outers when assembled that way, its only about .55mm wide on that side. But it should work. So, put one bearing in with the thicker outer edge facing left, a dab of grease to hold a formed piece of 30 gage kynar wire stripped, laid in the grease and push the 2nd bearing in to trap the angular and the nut, which has a set-screw for locking, brought up to put some pressure on the inners, sound like that would work just fine. That wire wire is too thick, but it will cold flow some, so if the nut is snugged up, eventually it should be able for the wire to support the loading for a long time. Sounds like a winner to me Andy, thanks. I'll check in later when I've tried it. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml I never pray before meals -- my mom's a good cook. I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On 10 February 2013 17:11, Gene Heskett ghesk...@wdtv.com wrote: Message additions Copyright Sunday 10 February 2013 by Gene Heskett Incidentally, this bugs me. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
McMaster Carr does not have a minimum order... I've ordered $2 parts from them, you still pay reasonable shipping on anything you order. John On 2/10/2013 8:05 AM, Gene Heskett wrote: On Sunday 10 February 2013 08:34:10 Mark Wendt did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On Sat, Feb 9, 2013 at 7:15 PM, Steve Blackmore st...@pilotltd.net wrote: That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for-t he-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore Steve, Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Gene, check the link for the image of the two type oil fittings at the bottom of Steve's link. Does your zerk look like either of those? Mark The photo isn't as clear as it could be. However folks, we aren't talking about a high speed spindle. This is a ball nut on a 16x5mm screw, that I was able to get 60 ipm rapids out of last night with a 2/1 geardown so the motor is charging right along, thinking I was home free, but the backlash setting I needed was excessive IMO, someplace in the .0045 to .0048 range, which seemed awful sloppy for a ball screw that was supposedly a C7 grade. Turns out there is zero preload on the angular ball bearings in the drive end bearing block regardless of the torque applied to the tensioning nut. So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will then be preloaded about a thou. Or is that too much crush? .1mm is the thinest I can get, but that will only take up about 60% of the end play which as is, looks to be as above, measured on either end of the screw. Besides, the grease fitting has been replaced with a Murican version (finding that turned into an all afternoon job Thursday) and the nut has been greased enough to push a small amount past the felt (or whatever, its white, wipers at each end of the nut. Since its maxed at maybe 300 rpm, std lithium grease will make it outlive me. It turns out, in my tour of the place looking for suitable shim material, that the alu slider on a 3.5 floppy disk is about that thickness. But cutting a shim out of that would probably be an EDM job to do it neat enough without burrs on the edges. Unless somebody else has an idea. McMaster-Carr has them in either 316 or 18-8 SS, straddling a $10 bill but whats their minimum order? More than a tenner IIRC. Cheers, Gene -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sunday 10 February 2013 17:20:45 Andy Pugh did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On 10 Feb 2013, at 14:05, Gene Heskett ghesk...@wdtv.com wrote: So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will Turn a cup shape on the lathe, part off to the desired thickness. I wouldn't try for exact thickness, in fact I would shim the outer races and adjust the nip with the nut. Since the lathe was apart, I first tried a loop of 30 gage kynar wrapping wire, stripped. But that apparently disappeared into the bevels on the outer edge of the races. So I jumped to a piece of 20 gage, which when assembled the end cap torqued well down, left a 6 or 7 thou gap between the block and the end cap. Then, drawing fairly snug on the nut, I was able to get the end slop down to about 0.0017. Still about 0.0036 at the toolpost because of its heavy back tail tends to make it climb the front V-way, but thats 10x better than it was two weeks ago. Chucking up a hunk of 5/8 cold roll rod, I zeroed the lathe using the pcb faced gage block I'd made, I fired off some gcode to make a 209 nipple for one of my BP rifles. Off size, my code was junk, fixed that, teaching me how to write better code, and 3 cycles later I had a perfect part that was about a thou over sized on the outside. More to do on it of course, but that is certainly close enough for my BP rifle. The thread isn't cut yet, thats a separate operation anyway. That code will also need work as I wasn't aware that the x drive screw had gotten loose from its anchor in the cross-feed bearing, so I had to cut that open tighten that up again. That is the joint using the difference in the threads tpi to tighten a tapered joint. Hopefully it will stay tight this time. I also set some soft limits to keep from running out of screws. So I'm getting there. :) Overall, I may yet dress this thing up as a silk purse, hiding everything but the blue paint on this sows ear. :) Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml If everything is coming your way then you're in the wrong lane. I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sunday 10 February 2013 18:31:55 andy pugh did opine: On 10 February 2013 17:11, Gene Heskett ghesk...@wdtv.com wrote: Message additions Copyright Sunday 10 February 2013 by Gene Heskett Incidentally, this bugs me. Sorry Andy. It's a pre-emptive strike as I am on a couple lists that come through yahoo's servers, and at one time yahoo was trying to claim copyright on everything that passes through their servers regardless of who wrote it. To say that I don't trust yahoo is an understatement. I can't find it in their TOS now, but there's a ton of legaleze in it that is written expressly to obfuscate the issue. I haven't figured out a way to make it selectively applied in this old kmail. I'll try to remember to nuke it for the LCNC list. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml You never get a second chance to make a first impression. I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sunday 10 February 2013 18:42:48 John Thornton did opine: McMaster Carr does not have a minimum order... I've ordered $2 parts from them, you still pay reasonable shipping on anything you order. John Thats better, thanks John. Now to remember it. In any event, Andy gave me a clue that turned out to be the fix. Turn the bearings around, and then shim between the outer races does the whole thing, so I am down to a decent backlash setting now. I also filled them with grease before re-assembly. Wouldn't want to burn them up as I can now go 60 ipm for rapids now. Thanks John. On 2/10/2013 8:05 AM, Gene Heskett wrote: On Sunday 10 February 2013 08:34:10 Mark Wendt did opine: Message additions Copyright Sunday 10 February 2013 by Gene Heskett On Sat, Feb 9, 2013 at 7:15 PM, Steve Blackmore st...@pilotltd.net wrote: That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for -t he-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore Steve, Yah, I'd heard about some of the horror stories where folks had forced grease into an oil fitting. That was why I was concerned for Gene when he mentioned his grease gun wouldn't fit the zerk. A number of guys on Practical Machinist had bought machines where the previous owner had forced grease into an oil fitting, and left a mess. Gene, check the link for the image of the two type oil fittings at the bottom of Steve's link. Does your zerk look like either of those? Mark The photo isn't as clear as it could be. However folks, we aren't talking about a high speed spindle. This is a ball nut on a 16x5mm screw, that I was able to get 60 ipm rapids out of last night with a 2/1 geardown so the motor is charging right along, thinking I was home free, but the backlash setting I needed was excessive IMO, someplace in the .0045 to .0048 range, which seemed awful sloppy for a ball screw that was supposedly a C7 grade. Turns out there is zero preload on the angular ball bearings in the drive end bearing block regardless of the torque applied to the tensioning nut. So, I need a 12mm bore, 18mm OD, .2mm thick shim washer to space the center races apart far enough that when I put the end cap back on the block, pushing in on the outer races, they will then be preloaded about a thou. Or is that too much crush? .1mm is the thinest I can get, but that will only take up about 60% of the end play which as is, looks to be as above, measured on either end of the screw. Besides, the grease fitting has been replaced with a Murican version (finding that turned into an all afternoon job Thursday) and the nut has been greased enough to push a small amount past the felt (or whatever, its white, wipers at each end of the nut. Since its maxed at maybe 300 rpm, std lithium grease will make it outlive me. It turns out, in my tour of the place looking for suitable shim material, that the alu slider on a 3.5 floppy disk is about that thickness. But cutting a shim out of that would probably be an EDM job to do it neat enough without burrs on the edges. Unless somebody else has an idea. McMaster-Carr has them in either 316 or 18-8 SS, straddling a $10 bill but whats their minimum order? More than a tenner IIRC. Cheers, Gene Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml How many surrealists does it take to screw in a lightbulb? One to hold the giraffe and one to fill the bathtub with brightly colored power tools. I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more.
Re: [Emc-users] Chinese grease zerk. 6mm
On Fri, Feb 8, 2013 at 12:24 PM, Jon Elson el...@pico-systems.com wrote: Hmmm, I've converted two grease guns to use on Bridgeports for oiling. They seemed to work quite well, using the standard grease fitting that came with the gun on the fittings on the mill. (I've now converted to a Fly Horse Chinese one-shot system, so don't use it anymore.) Jon Jon, That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Mark -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Sat, 9 Feb 2013 07:07:17 -0500, you wrote: On Fri, Feb 8, 2013 at 12:24 PM, Jon Elson el...@pico-systems.com wrote: Hmmm, I've converted two grease guns to use on Bridgeports for oiling. They seemed to work quite well, using the standard grease fitting that came with the gun on the fittings on the mill. (I've now converted to a Fly Horse Chinese one-shot system, so don't use it anymore.) Jon Jon, That may work for most 'Murkan made machines, but those with the made overseas in Asia tend to have a pretty lousy fit for the standard grease gun fitting. Hi Mark - oil nipple heads often aren't the same size and shape as grease nipples. Myford's were fitted with oil nipples, not grease nipples. I still have the original Wanner oil gun off one. It doesn't clip on the nipple. The end is simply a recess that you push against the nipple and pump. There's a link on this page that shows oil nipples (and the expensive pump ;) http://www.lathespares.co.uk/oil-lubrication-c-31/wanner-oil-gun-for-the-myford-lathe-new-p-646 The round head type nipple generally has a smaller diameter head than a grease nipple with the same thread. Plenty of Myford spindles were damaged though by people forcing grease into them using those grease guns with an adjustable clamping nozzle. It often forced the wick (hidden in the hole) into the bearing.. Steve Blackmore -- -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
This thread reminds me I had to buy a UNS tap for some nipples a few weeks ago Dave Caroline -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Friday 08 February 2013 05:49:05 Mark Wendt did opine: Message additions Copyright Friday 08 February 2013 by Gene Heskett On Fri, Feb 8, 2013 at 4:28 AM, Gene Heskett ghesk...@wdtv.com wrote: I don't think my tap collection includes that one, and #12 screws seem to have become an endangered specie over the last 50 years. ISTR one of the ancient equipment racks we have at the tv station was tapped 12-24 it took Ace Hdwe about 6 weeks to find me a box of them 25 years ago. I have some 6x1mm bolts, I'll clean one up and see if it will fit the hole. If that flies, I might try to bore a socket head to 1/4-28, run a #60 drill thru it and use an American fitting. I also have not stopped at NAPA, where, due to the metrification of the auto industry here, they may have a 6mm zerk with an American sized head on it. The chinese versions head is about 0.021 smaller OD, and a different profile that doesn't even try to fit our grease gun sockets. No place in my touring last evening had a grease gun tip for the std 1/8 pipe grease guns that had any mention of the word metric on the blister pack card. Frankly, my country is becoming a fossilized 3rd world island, Zimbabwe is the only other holdout to all metric. I think the word is PIMA? IMO, tooling wears out, and when it wears out, replace it with metric equ's and be done with it. But some fossil like me in a corner office that represents TPTB, can't think in metric. Don't these folks ever retire? No metric threads in that size are coarser than 1mm. Good to know, thanks Andy. Cheers, Gene Gene, Are you sure it's a grease zerk fitting and not an oiler zerk fitting? Mark If there is a diff, where can I get the oiler to fit it. In 78 years, I've not seen such a device on this side of the pond, Not saying there isn't one though. This has the usual top closure of a small spring loaded ball in the tip to keep the dirt out just like a std zerk. The oil cups generally have a spring loaded flip top lid and have to face up to be useful. Thanks Mark. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml A fanatic is a person who can't change his mind and won't change the subject. -- Winston Churchill I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Fri, Feb 8, 2013 at 5:53 AM, Gene Heskett ghesk...@wdtv.com wrote: Gene, Are you sure it's a grease zerk fitting and not an oiler zerk fitting? Mark If there is a diff, where can I get the oiler to fit it. In 78 years, I've not seen such a device on this side of the pond, Not saying there isn't one though. This has the usual top closure of a small spring loaded ball in the tip to keep the dirt out just like a std zerk. The oil cups generally have a spring loaded flip top lid and have to face up to be useful. Thanks Mark. Cheers, Gene Gene, Yah, there is a diff between the two. I recently saw a link on the Practical Machinist forum for a rather nice oil gun that was also relatively inexpensive. The oil zerks look quite similar to the grease zerks, but a regular grease gun doesn't seem to fit them very well. I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. Mark -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On 08.02.13 12:33, andy pugh wrote: On 8 February 2013 12:26, Mark Wendt wendt.m...@gmail.com wrote: Are you sure it's a grease zerk fitting and not an oiler zerk fitting? Good point. My (Imperial) milling machine has non-clipping fittings for an oil gun, relying purely in the push-pressure for sealing. Andy, if they're non-clipping, then are they those completely flat and flush oiling points, with sprung ball valve? Incidentally, does anyone know of a good non-leaking oiling gun for them? (Looked up wikipedia to learn what a zerk might be, and see that it's a grease nipple. Had guessed, I'll admit.) Erik -- A bachelor is a selfish, undeserving guy who has cheated some woman out of a divorce. - Don Quinn -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Friday 08 February 2013 06:21:44 Mark Wendt did opine: Message additions Copyright Friday 08 February 2013 by Gene Heskett On Fri, Feb 8, 2013 at 5:53 AM, Gene Heskett ghesk...@wdtv.com wrote: Gene, Are you sure it's a grease zerk fitting and not an oiler zerk fitting? Mark If there is a diff, where can I get the oiler to fit it. In 78 years, I've not seen such a device on this side of the pond, Not saying there isn't one though. This has the usual top closure of a small spring loaded ball in the tip to keep the dirt out just like a std zerk. The oil cups generally have a spring loaded flip top lid and have to face up to be useful. Thanks Mark. Cheers, Gene Gene, Yah, there is a diff between the two. I recently saw a link on the Practical Machinist forum for a rather nice oil gun that was also relatively inexpensive. The oil zerks look quite similar to the grease zerks, but a regular grease gun doesn't seem to fit them very well. I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. Mark Thanks Mark. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml It is easier to make a saint out of a libertine than out of a prig. -- George Santayana I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On 8 February 2013 12:59, Mark Wendt wendt.m...@gmail.com wrote: I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. I just had to share this URL http://www.thenippleshop.co.uk/acatalog/Oil_Dispensers.html -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Fri, Feb 8, 2013 at 6:22 AM, Gene Heskett ghesk...@wdtv.com wrote: Gene, Yah, there is a diff between the two. I recently saw a link on the Practical Machinist forum for a rather nice oil gun that was also relatively inexpensive. The oil zerks look quite similar to the grease zerks, but a regular grease gun doesn't seem to fit them very well. I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. Mark Thanks Mark. Cheers, Gene Found it! Here's the link for the gun itself: http://www.armysurpluswarehouse.com/hardware/alemite-screw-type-grease-gun-c600.html And the link to the forum topic is was posted in: http://www.practicalmachinist.com/vb/general/i-found-good-source-oil-gun-zert-fittings-258187/ Mark -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Friday 08 February 2013 10:11:20 andy pugh did opine: Message additions Copyright Friday 08 February 2013 by Gene Heskett On 8 February 2013 12:59, Mark Wendt wendt.m...@gmail.com wrote: I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. I just had to share this URL http://www.thenippleshop.co.uk/acatalog/Oil_Dispensers.html There is a slim chance they might have something, but their artwork isn't clear enough to identify. I'd call but thats across the pond my plan isn't international. So the local, not at all well stocked NAPA is next stop I guess. We've a Ford dealer in town who might have something too. I'll let the list know what I found when I get back. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml Take your work seriously but never take yourself seriously; and do not take what happens either to yourself or your work seriously. -- Booth Tarkington I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
Mark Wendt wrote: Yah, there is a diff between the two. I recently saw a link on the Practical Machinist forum for a rather nice oil gun that was also relatively inexpensive. The oil zerks look quite similar to the grease zerks, but a regular grease gun doesn't seem to fit them very well. Hmmm, I've converted two grease guns to use on Bridgeports for oiling. They seemed to work quite well, using the standard grease fitting that came with the gun on the fittings on the mill. (I've now converted to a Fly Horse Chinese one-shot system, so don't use it anymore.) Jon -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Fri, 2013-02-08 at 17:44 +0100, Peter Blodow wrote: Gene, I, too, had to guess what a zerk might be. It's not im my dictionary. Are you aware that zerks according to DIN and ISO (6 and 8 mm) have conic 1 mm threads, just like whitworth pipe threads, and this way they are supposed to be oil pressure proof after tightening. Peter Am 08.02.2013 16:16, schrieb Gene Heskett: On Friday 08 February 2013 10:11:20 andy pugh did opine: Message additions Copyright Friday 08 February 2013 by Gene Heskett On 8 February 2013 12:59, Mark Wendt wendt.m...@gmail.com wrote: I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. I just had to share this URL http://www.thenippleshop.co.uk/acatalog/Oil_Dispensers.html There is a slim chance they might have something, but their artwork isn't clear enough to identify. I'd call but thats across the pond my plan isn't international. So the local, not at all well stocked NAPA is next stop I guess. We've a Ford dealer in town who might have something too. I'll let the list know what I found when I get back. Cheers, Gene Just a few options listed here: ;-) http://www.saeproducts.com/grease-fittings.html Help or confusion ... take your choice. Dave -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Fri, 2013-02-08 at 10:36 -0800, dave wrote: On Fri, 2013-02-08 at 17:44 +0100, Peter Blodow wrote: Gene, I, too, had to guess what a zerk might be. It's not im my dictionary. Are you aware that zerks according to DIN and ISO (6 and 8 mm) have conic 1 mm threads, just like whitworth pipe threads, and this way they are supposed to be oil pressure proof after tightening. Peter Am 08.02.2013 16:16, schrieb Gene Heskett: On Friday 08 February 2013 10:11:20 andy pugh did opine: Message additions Copyright Friday 08 February 2013 by Gene Heskett On 8 February 2013 12:59, Mark Wendt wendt.m...@gmail.com wrote: I'll dig around and see if I can find the link to that oil gun the fella posted when I get a chance later this morning. I just had to share this URL http://www.thenippleshop.co.uk/acatalog/Oil_Dispensers.html There is a slim chance they might have something, but their artwork isn't clear enough to identify. I'd call but thats across the pond my plan isn't international. So the local, not at all well stocked NAPA is next stop I guess. We've a Ford dealer in town who might have something too. I'll let the list know what I found when I get back. Cheers, Gene Just a few options listed here: ;-) http://www.saeproducts.com/grease-fittings.html Help or confusion ... take your choice. Dave It gets even worse: too many choices. http://www.malonespecialtyinc.com/Identifying_Threads.html Amazing what google will do. ;-) Dave -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On 8 February 2013 20:49, dave dengv...@charter.net wrote: http://www.malonespecialtyinc.com/Identifying_Threads.html I also have, for your delight and delectation: http://www.bodgesoc.org/thread_dia_pitch.html (You can click the column headers to sort differently) The list is less complete than I would like, one day I will add the missing small metric and pipe threads. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Chinese grease zerk. 6mm
On Friday 08 February 2013 19:55:33 andy pugh did opine: Message additions Copyright Friday 08 February 2013 by Gene Heskett On 8 February 2013 20:49, dave dengv...@charter.net wrote: http://www.malonespecialtyinc.com/Identifying_Threads.html I also have, for your delight and delectation: http://www.bodgesoc.org/thread_dia_pitch.html (You can click the column headers to sort differently) The list is less complete than I would like, one day I will add the missing small metric and pipe threads. Well, after 2 trips to town because the first one made a hit, but the one he handed me said Merry Christmas turned out to be the only 1/4-28 in a $30 box of supposedly all metric fittings. Then I spied another nominally 10 pack that looked promising so I bought that one. Brought it home, dismounted the nut long enough to get swinging room to install a 90 degree out of that kit, then spent an hour re-arranging the place looking for my mini grease gun before I remembered I had binned it last summer for excessive leakage, so back to town again for a grease gun. Got that, a better one that holds the pressure off the grease with a friction latch, so maybe this one won't always be empty when I reach for it. Greased it up, draped a paper towel over the screw and homed it to my gage, checked saw the x was off about .3, fixed that in the .ini file, restarted, rehomed and fired off a routine that does the first 3 cuts for a BP #209 nipple. About 4 to 9 thou undersized, but before I try to get that any closer, I need to reset the routine to do a final 2 or 3 passes at each exact size, at which point I can fine tune the home offset to remove the last of that error. My GMC didn't get to cool off from about 11AM-ish till around 16:30. I had to remove some of the 3.2 thou backlash comp as the homing didn't work, throwing errors because the backlash move was opening contact. In the process of this conversion I found a lot more of my 'rubber toolpost' syndrome, so I believe I can make 2 to 4x heavier cuts than before. The left front carriage adjuster is all the way out, and that bolt well snugged up, the left front corner of the carriage was lifting, and I found the rear end was also bouncing some, so some takeup was done there too. So its still a sows ear, but a cleaner shaved version now. :) Thanks for the help on the grease fitting Guy's, it helped to clarify what I really needed to do. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml Oh my! An `inflammatory attitude' in alt.flame? Never heard of such a thing... -- Allen Gwinn, al...@sulaco.sigma.com I was taught to respect my elders, but its getting harder and harder to find any... -- Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
