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Re: Concern with my Spindle
开云体育
You can always use a dab of grease on the threads to hold the wires. No third hand required.
Get
From: [email protected] <[email protected]> on behalf of Dave Matticks <dpm100@...>
Sent: Wednesday, January 23, 2019 8:51:31 PM To: [email protected] Subject: Re: [atlas-craftsman IO] Concern with my Spindle ?
Jody,
Not being critical to anyone but ...
Having an indicator setup in the toolpost seems like a PITA .I've been using a mag base my entire life,? so versatile and I always have the contact at 12:00 unless I'm checking or matching an angle. Then 9:00 Is the way.
Did you practice holding the thread wires yet?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Jody <jp4lsu@...>
Date: 1/23/19 17:36 (GMT-06:00)
Subject: Re: [atlas-craftsman IO] Concern with my Spindle
I was in the middle of setting something up? in the chuck, and had the test indicator mounted in a QCTP holder.? I was setting up a piece in the 4 jaw and I inadvertently bumped the chuck with my arm and saw the needle move a good bit. So I purposefully tugged sideways on the chuck and saw the indicator move around 0.002.? My work piece was short but couple that with the amount of chuck hanging off the end of the spindle, I'm sure spindle movement appears exaggerated some. Also as you pointed out, the indicator was not on the headstock casting. I'll get the chuck off and check the spindle properly. I'm guessing the oil loss differential from the front to back bearings has to do with the metal dust caps sealing better on one end. I'm curious if other's oil cups are empty on the spindle each time they use it? Thanks, Jody |
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Re: Concern with my Spindle
开云体育Jody, Not being critical to anyone but ... Having an indicator setup in the toolpost seems like a PITA .I've been using a mag base my entire life,? so versatile and I always have the contact at 12:00 unless I'm checking or matching an angle. Then 9:00 Is the way. Did you practice holding the thread wires yet? Dave? Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: Jody <jp4lsu@...> Date: 1/23/19 17:36 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Concern with my Spindle I was in the middle of setting something up? in the chuck, and had the test indicator mounted in a QCTP holder.? I was setting up a piece in the 4 jaw and I inadvertently bumped the chuck with my arm and saw the needle move a good bit. So I purposefully tugged sideways on the chuck and saw the indicator move around 0.002.? My work piece was short but couple that with the amount of chuck hanging off the end of the spindle, I'm sure spindle movement appears exaggerated some. Also as you pointed out, the indicator was not on the headstock casting. I'll get the chuck off and check the spindle properly. I'm guessing the oil loss differential from the front to back bearings has to do with the metal dust caps sealing better on one end. I'm curious if other's oil cups are empty on the spindle each time they use it? Thanks, Jody |
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Re: Find on Craigslist
开云体育??? ??? Having made 1 Meter long torsion bars on my 12 X 36 Atlas
there are times you need 2!? Bill in Boulder On 1/23/19 6:21 PM, mike allen wrote:
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Re: Welcome to [email protected]
I think if ya subscribe to his youtube channel ya can reply to
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him in the comments & he will tell ya how . ??? ??? ??? animal On 1/23/2019 4:36 PM, Don Newbold wrote: I have watched and enjoyed many of your youtube videos!!! |
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Re: Find on Craigslist
开云体育??? ??? wow 2 Steady rest's . I never really gave any thought to
these massive lathes that they would need 2 steady's ??? ??? animal On 1/23/2019 4:00 PM, Jody wrote:
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Re: Welcome to [email protected]
Don Newbold
I agree and have seen a bit of that done on youtube.
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What does one use for that and where is a good place to get it? Don On 1/23/2019 12:53 PM, Jay Greer wrote: Don, |
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Re: Welcome to [email protected]
Don Newbold
I have watched and enjoyed many of your youtube videos!!!
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I recall seeing some time ago an Atlas course on CD. I haven't run across it since. How can I get it? Don On 1/23/2019 1:31 PM, mike allen wrote: ??? ??? mrpete222 |
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Re: Concern with my Spindle
Good point Dave.
I was in the middle of setting something up? in the chuck, and had the test indicator mounted in a QCTP holder.? I was setting up a piece in the 4 jaw and I inadvertently bumped the chuck with my arm and saw the needle move a good bit. So I purposefully tugged sideways on the chuck and saw the indicator move around 0.002.? My work piece was short but couple that with the amount of chuck hanging off the end of the spindle, I'm sure spindle movement appears exaggerated some. Also as you pointed out, the indicator was not on the headstock casting. I'll get the chuck off and check the spindle properly. I'm guessing the oil loss differential from the front to back bearings has to do with the metal dust caps sealing better on one end. I'm curious if other's oil cups are empty on the spindle each time they use it? Thanks, Jody |
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Re: Welcome to [email protected]
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Pete, |
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Re: Welcome to [email protected]
开云体育Don,Looks like a bit of clean up will be heeded! Wishing you lots of fun with your keen project. ?You might need to scrape that bed in or have it ground. Cheers Jay Greer
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Re: Welcome to [email protected]
Don Newbold
Pete,
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Is this pete222 or Tubalcain? Don On 1/23/2019 5:11 AM, Pete McLaughlin via Groups.Io wrote: HI Don |
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Re: Welcome to [email protected]
Don Newbold
Thanks for the warm welcome.
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Here are a couple photos of their current condition. The Atlas is complete and well oiled. The Sears is covered in saw dust as it had been sitting in a wood shop for years. There is no id plate, neither on the end nor the back. It is complete except for a motor. Both are sitting covered as I try to convert a 50x6 room along the front of my house from a greenhouse to shop space. Don On 1/22/2019 5:57 PM, Bill Buckalew via Groups.Io wrote: Don: |
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Re: Concern with my Spindle
开云体育What's the indicator anchored to? If it's anything except the headstock casting you could be seeing deflection of something besides the spindle bearings.? Dave Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: Jody <jp4lsu@...> Date: 1/23/19 07:19 (GMT-06:00) Subject: [atlas-craftsman IO] Concern with my Spindle Should this concern me? I'll try taking the wick out of the front and see if that speeds up the oil usage but the back seems to be emptying too fast IMO. When I rebuilt it I followed the procedures for setting the spindle and I seem to remember? the spindle should have about a 0.001 or so of play when cold. I'm getting over 0.001, maybe 0.001-0.002 when i pull sideways on the chuck.? Does this seem OK? My work is coming out nice and I think the force I'm putting on the chuck to get that deflection is higher than a cutting force on most stuff. Just checking to see if I need to adjust something or if anybody has had similar situations. Thanks, Jody |
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Re: Babbit bearings
The babbitt bearings should be shimmed if they were done properly and are not too worn.? You can remove a shim on one or both sides to tighten them up.? ?This should be done with the bearings warmed up.? ?Babbit bearings are fine for low speed work, and there was an argument back in the day that they were more accurate.? Better ball/roller bearings and the the inevitable effects of old age reduced the number of folks in the babbitt bearing camp.? ?Clean the lathe up, clean the bearings up, use it.? The more chips you make the better the lathe gets.?? Charles ??
On Wednesday, January 23, 2019, 7:16:53 AM CST, blw6772 via Groups.Io <blw6772@...> wrote:
Hey Y’all .. l bought a V-48 lathe , needing restoration ?, missing a few small parts . Will machine do ok doing threads ? I’m new in this adventure.. down loaded the operation book ,. l only paid 200.00 for this machine ?. It runs , the Ways seem to be in pretty good shape. I don’t know ? about the Babbit bearings. The chuck seemed to run true before l paid the old fella . I’m not sure if I should spend too much time and money on this machine... Any advice from Y’all will be really appreciated.. l think someone said the the lathe was probably around 1941 .?
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Concern with my Spindle
The last few times I've used the lathe, I put oil in the spindle cups and each have a flat piece of felt as? a wick laid in there.? Every time I put oil in them, the back oil cup is empty and the front cup is still practically full. It is probably the sealing of the metal caps that cover the front and backside of the? Timken Brgs.
Should this concern me? I'll try taking the wick out of the front and see if that speeds up the oil usage but the back seems to be emptying too fast IMO. When I rebuilt it I followed the procedures for setting the spindle and I seem to remember? the spindle should have about a 0.001 or so of play when cold. I'm getting over 0.001, maybe 0.001-0.002 when i pull sideways on the chuck.? Does this seem OK? My work is coming out nice and I think the force I'm putting on the chuck to get that deflection is higher than a cutting force on most stuff. Just checking to see if I need to adjust something or if anybody has had similar situations. Thanks, Jody |
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Babbit bearings
Hey Y’all .. l bought a V-48 lathe , needing restoration ?, missing a few small parts . Will machine do ok doing threads ? I’m new in this adventure.. down loaded the operation book ,. l only paid 200.00 for this machine ?. It runs , the Ways seem to be in pretty good shape. I don’t know ? about the Babbit bearings. The chuck seemed to run true before l paid the old fella . I’m not sure if I should spend too much time and money on this machine... Any advice from Y’all will be really appreciated.. l think someone said the the lathe was probably around 1941 .?
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Re: Little blast from the past
Thanks for the info Dave.? That looked like an interesting job.? I worked in a machine shop during before and during my college years, I actually miss working with my hands a lot.? As a airframe stress analyst, it's pretty much a computer jockey job with occassional trips to the floor to look at structure built on the line or test.?
Thanks for the pic and discussion.? Interesting stuff.? -Jody |
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Re: Welcome to [email protected]
Welcome Don.
You found the right place to get help of any kind for you lathes.? They have helped me tremendously during the rebuilding and then subsequent questions about techniques and advice on tooling. Welcome and have fun. -Jody (DFW) |
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Re: Welcome to [email protected]
Pete McLaughlin
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On Jan 22, 2019, at 1:26 PM, Jay Greer <redwitch1@...> wrote:
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