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Re: I Need a 3 Jaw Chuck
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From: [email protected] <[email protected]> on behalf of mondosmetals <jwrey@...>
Sent: Sunday, April 19, 2020 8:48:13 AM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ?
On Sat, Apr 18, 2020 at 04:34 PM, Jon Elson wrote: And, I think they stopped making these about 5 years ago.? There are import clones, I have a Phase-II.
6" 3-Jaw is plenty big enough for any 10" or 12" lathe. (IMHO) For the ego-centric there is an 8" in this line, forged steel body with reversible (2-pc) jaws, 37 lbs (does not include mounting plate)? MSRP? $1275 US For the budget-minded: |
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Re: I Need a 3 Jaw Chuck
On Sat, Apr 18, 2020 at 04:34 PM, Jon Elson wrote:
And, I think they stopped making these about 5 years ago.? There are import clones, I have a Phase-II.
6" 3-Jaw is plenty big enough for any 10" or 12" lathe. (IMHO) For the ego-centric there is an 8" in this line, forged steel body with reversible (2-pc) jaws, 37 lbs (does not include mounting plate)? MSRP? $1275 US For the budget-minded: |
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Re: I Need a 3 Jaw Chuck
开云体育Robert , I haven't been concerned because of the type work I do but was wondering. ? ? Once the chuck is set up with a machined back plate and you have zero runout do you have to mark the plate and spindle to be sure you get to back in the same place when removed and reinstalled? Seem's that differences in tightening would change the location somewhat. I appreciate all you do in running this group. Sent from my Boost Mobile Phone. 开云体育-------- Original message -------- From: Andrei <calciu1@...> Date: 4/19/20 8:18 AM (GMT-05:00) Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck
Robert, this is a great description. Thank you
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of Robert Downs via groups.io <wa5cab@...>
Sent: Sunday, April 19, 2020 12:29:40 AM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ?
Let me clarify something – 3-jaw lathe chucks these days generally come in one of three ways.? ? 1)????? Generally the least expensive will be the type where the rear plate of the chuck comes already threaded or otherwise prepared to fit whatever mount that your spindle has and with no means of run-out adjustment.? For us that means threaded for 1”-8, 1”-10 or 1-1/2”-8.? The rear plate of the chuck also supports the rear of the scroll. ? 2)????? The second type, usually described as Plain Back or Flat Back, as it comes, has no way to mount or attach it to the spindle but is otherwise complete.? For it, you buy a separate backing plate usually already with the means to attach it to the spindle (in our case that means threaded) finish machined.? If you buy it from the lathe maker, it will usually already have the 3 to 8 chuck mounting holes drilled.? But the surface that will go against and into the rear of the chuck is not finish machined.? The buyer will normally do that machining on the lathe that it will run on, which will compensate for any spindle run-out.? This is the type that Dan is referring to below.?? And let me add that before doing the machining on the backing plate, you should do anything that you may have been putting off by way of adjusting or replacing the spindle bearings or bushings.? Otherwise, I hope that you either bought two backing plates or are living a charmed life. ? 3)????? The third type normally comes like the first type, with the spindle mount present and complete. But it also has a backing plate similar to the second type. ?With this type, you mount the chuck on the spindle and then follow the instructions that should have come with it to adjust the chuck for zero run-out.? But you do NOT do any machining on the chuck or backing plate.? And if you later replace the spindle bearings or bushings, all that you need to do is to check the run-out and if necessary (probably) dig out the instructions and repeat the zero run-out adjustments. ? ? Robert Downs ? From: [email protected] [mailto:[email protected]]
On Behalf Of Dan and Marlene Coleman ? Buy one that requires a backing plate.? It will cost more to buy the chuck and the backing plate, but it is probably the best way to get one that runs true to your spindle. ? Dan Coleman |
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Re: I Need a 3 Jaw Chuck
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From: [email protected] <[email protected]> on behalf of Robert Downs via groups.io <wa5cab@...>
Sent: Sunday, April 19, 2020 12:29:40 AM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ?
Let me clarify something – 3-jaw lathe chucks these days generally come in one of three ways.? ? 1)????? Generally the least expensive will be the type where the rear plate of the chuck comes already threaded or otherwise prepared to fit whatever mount that your spindle has and with no means of run-out adjustment.? For us that means threaded for 1”-8, 1”-10 or 1-1/2”-8.? The rear plate of the chuck also supports the rear of the scroll. ? 2)????? The second type, usually described as Plain Back or Flat Back, as it comes, has no way to mount or attach it to the spindle but is otherwise complete.? For it, you buy a separate backing plate usually already with the means to attach it to the spindle (in our case that means threaded) finish machined.? If you buy it from the lathe maker, it will usually already have the 3 to 8 chuck mounting holes drilled.? But the surface that will go against and into the rear of the chuck is not finish machined.? The buyer will normally do that machining on the lathe that it will run on, which will compensate for any spindle run-out.? This is the type that Dan is referring to below.?? And let me add that before doing the machining on the backing plate, you should do anything that you may have been putting off by way of adjusting or replacing the spindle bearings or bushings.? Otherwise, I hope that you either bought two backing plates or are living a charmed life. ? 3)????? The third type normally comes like the first type, with the spindle mount present and complete. But it also has a backing plate similar to the second type. ?With this type, you mount the chuck on the spindle and then follow the instructions that should have come with it to adjust the chuck for zero run-out.? But you do NOT do any machining on the chuck or backing plate.? And if you later replace the spindle bearings or bushings, all that you need to do is to check the run-out and if necessary (probably) dig out the instructions and repeat the zero run-out adjustments. ? ? Robert Downs ? From: [email protected] [mailto:[email protected]]
On Behalf Of Dan and Marlene Coleman ? Buy one that requires a backing plate.? It will cost more to buy the chuck and the backing plate, but it is probably the best way to get one that runs true to your spindle. ? Dan Coleman |
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Re: I Need a 3 Jaw Chuck
In your shoes, I'd try ebay.? There are a couple chucks listed there for about $50 each, though I can't vouch for fit or condition.? And you do want to get both sets of jaws. Bruce NJ On Sat, Apr 18, 2020 at 2:44 PM Jody <jp4lsu@...> wrote:
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Re: I Need a 3 Jaw Chuck
开云体育Let me clarify something – 3-jaw lathe chucks these days generally come in one of three ways.? ? 1)????? Generally the least expensive will be the type where the rear plate of the chuck comes already threaded or otherwise prepared to fit whatever mount that your spindle has and with no means of run-out adjustment.? For us that means threaded for 1”-8, 1”-10 or 1-1/2”-8.? The rear plate of the chuck also supports the rear of the scroll. ? 2)????? The second type, usually described as Plain Back or Flat Back, as it comes, has no way to mount or attach it to the spindle but is otherwise complete.? For it, you buy a separate backing plate usually already with the means to attach it to the spindle (in our case that means threaded) finish machined.? If you buy it from the lathe maker, it will usually already have the 3 to 8 chuck mounting holes drilled.? But the surface that will go against and into the rear of the chuck is not finish machined.? The buyer will normally do that machining on the lathe that it will run on, which will compensate for any spindle run-out.? This is the type that Dan is referring to below.?? And let me add that before doing the machining on the backing plate, you should do anything that you may have been putting off by way of adjusting or replacing the spindle bearings or bushings.? Otherwise, I hope that you either bought two backing plates or are living a charmed life. ? 3)????? The third type normally comes like the first type, with the spindle mount present and complete. But it also has a backing plate similar to the second type. ?With this type, you mount the chuck on the spindle and then follow the instructions that should have come with it to adjust the chuck for zero run-out.? But you do NOT do any machining on the chuck or backing plate.? And if you later replace the spindle bearings or bushings, all that you need to do is to check the run-out and if necessary (probably) dig out the instructions and repeat the zero run-out adjustments. ? ? Robert Downs ? From: [email protected] [mailto:[email protected]] On Behalf Of Dan and Marlene Coleman
Sent: Saturday, April 18, 2020 18:33 To: [email protected] Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ? Buy one that requires a backing plate.? It will cost more to buy the chuck and the backing plate, but it is probably the best way to get one that runs true to your spindle. ? Dan Coleman |
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Re: I Need a 3 Jaw Chuck
That is a 5" mini-lathe chuck. Probably not a bad chuck, but maybe a little small for a 12" Atlas. I have a 4-jaw 5" I got for my mini-lathe, and it's maybe a bit large for them. All depends on what you need to do, and what you have to do it on. ;) I was going to use it on the Atlas, with a suitable backplate. Then I found the Shars 6" 4-jaw for $150. Bill in OKC Bill in OKC William R. Meyers, MSgt, USAF(Ret.) A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. LAZARUS LONG (Robert A. Heinlein)
On Saturday, April 18, 2020, 04:48:54 PM CDT, Andrei <calciu1@...> wrote:
If that does not work, you can check this one out next:
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of Jody <jp4lsu@...>
Sent: Saturday, April 18, 2020 4:27:59 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ?
I rolled the dice on ebay and found an Atlas 3 jaw.? $115 after shipping.? I'll see how it works in a week or so.
-Jody?
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
From: Chris <chrisandjudy@...>
Date: 4/18/20 3:09 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck
?
?
I went to ebay for a used one. Took a little searching but found one that looked okay for a little over a hundred dollars plus shipping.
It arrived and I put it on my lathe and it checked out .005 out.? I had reground the jaws in another chuck and was pleased so I ground the jaws on
this one and it turned out less than .0015 run out.? The reason for buying another 3 jaw chuck was so I could have one set up for inside holding
and one for outside holding.? I also bought separate jaws sets from ebay and that was a crap shoot but did allow me to save a good chuck with very bad jaws.
Chris in WA
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Re: I Need a 3 Jaw Chuck
The seller of my chuck is on Ebay and is in Michigan don't remember his name , i think? he is still there. Look him up. He sells chucks with back plates. I machined my own. My chuck ran with in 0.0015 of a inch and still does. I think i paid $ 140.00 for mine. The tolerances on new chucks is up to 0.004 run out . I would make a new back plate for a new chuck. so the chuck that Andrei pointed out would be the one to get. For a hobby user that chuck would be fine. You can buy back plates rough machined ( not to size ) on line. i use my lathe at least 3 days a week that brand chuck does the job. GP
On Saturday, April 18, 2020, 7:23:48 PM EDT, mike allen <animal@psln?? .com> wrote:
??? ??? I got my 6" 3 jaw with soft jaws & backplate from CDCO several years back& have been happy with it . you will have to do the backplate work before mounting , but ya need to do that with any threaded chuck ya get . ??? ??? I put just the backplate on the spindle backwards &
shaved almost 3/4" of the plate so as to cut down on the chuck
overhang ??? ??? animal On 4/18/2020 11:44 AM, Jody wrote:
Hey guys,
I have a 12" (101.07403) I've reached a level of
frustration having on a 4 jaw chuck and am ready to get a 3
jaw.? I don't mind setting up the work in a 4 jaw but removing
the work to check something and then having to re-chuck it is
getting tiresome.
There are a few on ebay currently of different brands with
the 1 1/2- 8 threads.? (Atlas, Cushman, etc)
Should I try one of the older used chucks or try a new
Shars or something similar or stick with an old one?? I would
like to find an Atlas 6" diam chuck but they aren't cheap.? Am
I rolling the dice either direction with accuracy?
Thanks for the input and advice.
-Jody
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Re: I Need a 3 Jaw Chuck
The chuck Andrei pointed out on e-bay is a great chuck. I have one? GP
On Saturday, April 18, 2020, 6:23:34 PM EDT, Dave Matticks <dpm100@...> wrote:
Buck is no longer USA made, still nice though.
Maybe 2 years ago we got a new Bison "set true" 3 jaw chuck at work for a new CNC lathe. $900.00 for an 8" chuck with the back plate! Yikes!
It's ok.
Manual stuff with precision,4 jaw!
3 jaws are great for quick stuff and hex stock.
Dave
On April 18, 2020 at 5:03 PM Jeff Chadima <jeff.chadima@...> wrote: ? |
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Re: I Need a 3 Jaw Chuck
This chuck one has to make the adapter plate. I hope the one that buys it knows how GP
On Saturday, April 18, 2020, 5:48:54 PM EDT, Andrei <calciu1@...> wrote:
If that does not work, you can check this one out next:
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of Jody <jp4lsu@...>
Sent: Saturday, April 18, 2020 4:27:59 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ?
I rolled the dice on ebay and found an Atlas 3 jaw.? $115 after shipping.? I'll see how it works in a week or so.
-Jody?
Sent via the Samsung Galaxy S10+, an AT&T 5G Evolution capable smartphone
-------- Original message --------
From: Chris <chrisandjudy@...>
Date: 4/18/20 3:09 PM (GMT-06:00)
Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck
?
?
I went to ebay for a used one. Took a little searching but found one that looked okay for a little over a hundred dollars plus shipping.
It arrived and I put it on my lathe and it checked out .005 out.? I had reground the jaws in another chuck and was pleased so I ground the jaws on
this one and it turned out less than .0015 run out.? The reason for buying another 3 jaw chuck was so I could have one set up for inside holding
and one for outside holding.? I also bought separate jaws sets from ebay and that was a crap shoot but did allow me to save a good chuck with very bad jaws.
Chris in WA
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Re: I Need a 3 Jaw Chuck
开云体育??????????????????????????????? Oddly enough I went the exact same route. Grabbing the work and dialing it in I finally realized that I was chasing half thousandths and came to a realistic appraisal as to what was needed. Two wrenches are a big help too. ??????????????????????????????? Bill in Boulder CO USA ? Sent from for Windows 10 ? From: S Johnson
Sent: Saturday, April 18, 2020 7:19 PM To: [email protected] Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ? I learned on a lathe with only a 4-jaw. The initial days were madness but now I can dial in a 4-jaw faster than many can select the right collet for their collet chuck. Plus on some work the 4-jaw is the only way.? ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
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On Apr 18, 2020, at 8:57 PM, Brian Cayer <b.k.cayer@...> wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
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On Apr 18, 2020, at 5:53 PM, Dave Matticks <dpm100@...> wrote:
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育Make the jaws replaceable with w hard set, soft steel and an aluminum set for non maring work. ? ? ? I replaced the hardened, diamond embossed ones on my bench vice with aluminum years ago for a job and never have reinstalled them. Sent from my Boost Mobile Phone. 开云体育-------- Original message -------- From: Dave Matticks <dpm100@...> Date: 4/18/20 1:50 PM (GMT-05:00) Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment If it's low carbon like 1018ish it won't respond. All that'll happen is it'll get hot until you quench, then it'll be cool. Only difference will be color. Dave? Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: Andrei <calciu1@...> Date: 4/18/20 12:15 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment
Bruce, it is a hand vise. Harden it with the torch and oil or water, depending on your steel.
I would harden the whole part, not just the jaw, because it is small enough.
Typos are courtesy of autocorrect.
From: [email protected] <[email protected]> on behalf of Dave Matticks <dpm100@...>
Sent: Saturday, April 18, 2020 12:53:20 PM To: [email protected] <[email protected]> Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment ?
Bruce,
Awesome job on the hand vise!
Where the heck did you find a left hand thread wing nut to pin onto the screw?
Doesn't matter, I like it right down to the handle!
Regarding heat treating: what did you make the jaws out of??
Low carbon? Only option is case hardening.
Anything you might do at home with a torch is likely to give only a very shallow depth. Might call a commercial heat treating place near you to inquire about carburizing.
Explain your situation, they "might" give you a deal.
Dave
On April 17, 2020 at 12:29 PM exerpd+groupsio@... wrote: ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
开云体育Working on it ;<) Set screw as well. Dimensions don't matter, I think it's a good process regardless of size. Beats the hell out of form tools for one off on a small lathe! Dave? Sent from my T-Mobile 4G LTE Device 开云体育-------- Original message -------- From: mike allen <animal@...> Date: 4/18/20 18:34 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Need Pulley for Craftsman Speed-Reducing Attachment ??? ??? ya forgot the key way Dave ??? ??? animal On 4/18/2020 2:52 PM, Dave Matticks
wrote:
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Re: I Need a 3 Jaw Chuck
开云体育If you feel that you can afford it, I would also go with a Buck or Buck style with reversible jaws.? Another good brand is or was Pratte-Bernerd.? I’ve had a 6” P-B for nearly 40 years.? If you don’t feel that you can afford that, I’d go with an Atlas marked one (I don’t think that they ever actually made chucks) but be sure that it has both sets of jaws, because unlike the ones on your 4-jaw, the jaws on a solid jaw 3-jaw are not reversible. ? Robert Downs ? From: [email protected] [mailto:[email protected]] On Behalf Of Andrei
Sent: Saturday, April 18, 2020 13:46 To: [email protected] Subject: Re: [atlas-craftsman IO] I Need a 3 Jaw Chuck ? Jody, Buck chucks are adjustable for runout and are cool. A bit pricier but worth it Typos are courtesy of autocorrect. ? From: [email protected] <[email protected]> on behalf of Jody <jp4lsu@...> ? Hey guys, I have a 12" (101.07403) I've reached a level of frustration having on a 4 jaw chuck and am ready to get a 3 jaw.? I don't mind setting up the work in a 4 jaw but removing the work to check something and then having to re-chuck it is getting tiresome. ? There are a few on ebay currently of different brands with the 1 1/2- 8 threads.? (Atlas, Cushman, etc) ? Should I try one of the older used chucks or try a new Shars or something similar or stick with an old one?? I would like to find an Atlas 6" diam chuck but they aren't cheap.? Am I rolling the dice either direction with accuracy? Thanks for the input and advice. -Jody ? |
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
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Re: I Need a 3 Jaw Chuck
开云体育Buy one that requires a backing plate.? It will cost more to but the chuck and the backing plate, but it is probably the best way to get one that runs true to your spindle. ? Dan Coleman |
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Re: I Need a 3 Jaw Chuck
开云体育??? ??? I got my 6" 3 jaw with soft jaws & backplate from CDCO several years back& have been happy with it . you will have to do the backplate work before mounting , but ya need to do that with any threaded chuck ya get . ??? ??? I put just the backplate on the spindle backwards &
shaved almost 3/4" of the plate so as to cut down on the chuck
overhang ??? ??? animal On 4/18/2020 11:44 AM, Jody wrote:
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Bill in OKC too
Brian Cayer