I think Keith is a stickler for extreme precision. I’ve noticed that he always uploads at the same time, I’m on the wast coast and if I get a YT notice at 3:01am it’s always Vintage Machinery, you can basically set your watch by it.
Many shops do not appreciate that if your tooling is inaccurate then your work product never will be. I learned that lesson in metrology working along side with master machinists who learned from back in the 1950's and 1960's. As an engineer I gained an appreciation for their decades of experience.
Great video. Old Tool and Die Maker here. We used to grind in the chuck on Harig 612s due to workpiece wear. I can't believe how much comes back to me even after being off the bench for 20 years. Thanks again. Nice work.
Using your Lathe to repair your Lathe! I love it! My Father was a Machinist before is was born so a little rubbed off on me. I'm now 57 and he's 83. I still enjoy learning Machinist tips and tricks! Thank you.
I first had the same thought, but then if he want the jaws the opposite way, a problem will happen. These jaws can be mounted either way. Sorry for my English.
It's a 4 jaw, no need to. The jaws move independently to allow the machinist to dial in the workpiece. If it was a scroll style 3 or 6 jaw, then yes a preload is absolutely needed.
Brilliant job,never seen a chuck grinder before but yes it works,I love the idea of repairing a good solid chuck and not just buying new and discarding a good workhorse chuck that will last a lifetime,that to me is point of best practice engineering,now a retired machine tool setter operator from across the pond,I certainly will be watching your videos now,It brings fond memories of a job I enjoyed everyday of my life,God bless sir I look forward to your posts
This is one of THOSE videos that will be an excellent video for all of UA-cam, for refurbishing an old 4 jaw chuck... Great Job...! and definingly time well spent....!
At about 27:30 Ginger the shop safety foremen can be seen making sure everything is going good Keith. Keep up the good work. Aways a pleasure to see a master at work. Scotch bright the outside edge to clean it up. I know it doesn't matter to function but appearance matters.
Good observation for not being a machinist, when turn or grinding chuck jaws they should always be loaded/clamped. This insures they are ridgid for the cutting operation and more importantly under the same stress as when they are used. This will greatly increase accuracy.
@@richmccabe2902 There is no load on them when grinding. And they can be flipped around to grip from the inside so preloading them would probably not help overall.
outstanding job recycling that chuck and making it almost like new! I found a box long ago marked toolpost grinder, I'm going to have to investigate that now.
Thanks for the video! l appreciate you showing how to get more accuracy from your tooling. What impressed me most about this video is that having the tools available meant all that was required was the time to do it. KOKO!
I worked with a worn out chuck for over 20 years. As long as I never changed the set-up I was ok. Haveing this to help me all those years to go sure would have helped a lot. Awesome post Keith, Where were you 25 years ago, LOL.
Keith, I can feel your frustration. It's another one of those "I want to do "A", but I can't because it requires that "B" be fixed (or changed) first. Aaahhhhhh, but "B" requires that "C" be fixed first. Grrrrrrrrrrrrr!!!!!! Way too often do I find myself in this kind of situation. Grrrrrrr!!!!!!
Maintaining tools ... and you have so many of them. Great to see the hoist being used again with the lathe, it just proved how needed those efforts were worth.
Great Video! I would bet that the one Jaw that was off may well have come from a different chuck! you just never know what to expect with really old gear!
Thank you for allowing people to see a craftsman at work, very relaxing viewing, nice to see the foreman keeping an eye on things in the background as well.
I greatly admire your patience, Keith. I had some much more minor struggles with a much smaller chuck earlier this week, and I might have used some adult language during the process. 😊
9:30 you can really see the runout on the headstock side of the back plate...... all the way down in Orlando.........this is a wonderful explanation on getting your runout out.......PB
seen its better days" heck that ol chuck is going through its best days now! with a owner like keith it will be use properly and well cared for from now on! nice work keith!!
It make me feel good to see someone else who takes the time to fix things rather then go buy new stuff that's most likely not made with the quality the older stuff is made. That's the problem with the younger generation and it's not thier fault. They were raised in a culture of the throw away stuff and we were raised in a time of fix what you have mostly because we couldn't afford to go out and buy new things. We were raised when there was a TV repair and radio repair in every town ,shoe repair ,appliance repair shops and the lists goes on an on. Now there's hardly any repair shops because of our throw away wasteful society.
That was beautiful. I don't know why but this video was very satisfying to watch. I think it's the thought of taking an almost useless tool and giving it a new life. That Chuck will serve you well for the rest of your life and maybe longer for the next owner. It's so satisfying to have the tools and skills to accomplish that. Thank you again for sharing these videos with us.
That was a master class on how to properly apply true-up/diagnostic processes on an old piece of equipment. Perfect example of working out from the spindle of the lathe. Thank you for sharing the journey Keith.
Absolutely what I expected, if it’s broken, you should fix it. In the bustling era we are in, repairing and maintaining the tooling is in many cases a R&R with new. To show how to troubleshoot and correct the problem is far more important than to just replace. Besides there is little satisfaction in just replacing when modifying is possible. Two thumbs waiving at you Keith!
I have folloved many machinist pros and I have noticed that when grind the chuck jaws you have to preload them with inner or outher ring - depend on what grind - there normaly is some slak in the sliding groves... hope it will go for a long time.
I had a lathe and a good chuck, and it was not behaving like that. What I found was swarf just a single slice was in the threads. Yes threads. Once out the chuck trued. I think you are on to the issue here. I think the lathe needs to be verified and work outward. I suspect it is for another lathe. And I've seen jaws in stacks and chucks flat stacked feet tall. Surplus guys don't do us right all of the time. I take off my compound and put my tool post grinder on it. Yes, one loses flexibility but one doesn't always need it.
This old chuck must have been very well manufactured and tempered/hardened to be so dinged up and still have good tolerances after your truing process. Very satisfying to watch!
Very cool. Using the tool to make itself more precise. I wonder if you had to undercut the steps in the jaw a little to account for whatever radius was on the corner of the grinding wheel.
First view and a first comment, it’s a good day. About to go drive six hours round trip to pick up a No. 3 Canton Crane for $750, gonna be a heck of a day. No i will not be turning it into a hanging chair holder. It’ll get used to lift material to and from the big old 1919 Fay and Scott patternmakers gap bed lathe (11’ between centers with the bed fully extended) that’s in my shop. It’ll also get put to use moving big machine tables about, so I can get into the guts of the of the machines in the shop when needed. Someday I’ll have a big jib crane like Keith does, but this will do just fine for now. And just for reference, I’m 28 years of age. Fun to be a young person using really old machines and tools to make chairs (you guessed it! I’m a chairmaker). Update: The crane is loaded up, tied down, and I’m east bound and down, loaded up and trucking back to seacoast NH where it will live forever in my shop, or until I die, whichever comes first.
38:21 .. Well !!!!?? ... I would say that chuck is as good as BRAND NEW!! .. a 4-Jaw of that size and Quality (and now that accuracy) has to be worth well over $1000 , maybe $2000 ?? .. GREAT JOB Keith (again!!)
Nice video, I would have liked to see the chuck body on the surface plate to measure a few things, and I would have liked to see the face plate held in the jaws just for a quick check after grinding. great video and that chuck sure posed a bit of a challenge to figure out. Wonder how it got that way, maybe someone changed a single jaw at one time? cheers!
Keith, when tightening bolts "on a circle" it's always good to tighten them not in "going around" fashion but "going across" way. Like, here it'd be "top-bottom-left-right", not "12-3-6-9". Certainly not a matter of life or death, but it'll help to tighten things evenly. Also, somehow this "side job" was more captivating than the "proper one", i.e. the brake drums. Cheers.
Fantastic job Keith! Looks really good after you refurbished that chuck. I know it must wear you out getting criticisms or critiques but as a Certified Auto Technician it makes me cringe when I see you torque down fasteners in a non crisscrossing pattern. Anyways I am loving the extra videos you are able to put out now that you have “retired”.
Rather than eyeballing those rings, I would have used the centering plug to find the machine's center and spaced them exact inches from center using the lathe's metrology. Taking about 2 hours to save hundreds or thousands is a very good wage.
Keith, I admire your perseverance in keeping up the new pace of posting high-quality videos. Congratulations!
I think Keith is a stickler for extreme precision. I’ve noticed that he always uploads at the same time, I’m on the wast coast and if I get a YT notice at 3:01am it’s always Vintage Machinery, you can basically set your watch by it.
Many shops do not appreciate that if your tooling is inaccurate then your work product never will be. I learned that lesson in metrology working along side with master machinists who learned from back in the 1950's and 1960's. As an engineer I gained an appreciation for their decades of experience.
Chuck is good for another 70 years. Nice video
Thanks Keith excellent video. I was surprised you didn't preload the jaws prior to grinding to remove any play.
It's all good to be able to reuse something that just involves a little thought and effort.
Great video. Old Tool and Die Maker here. We used to grind in the chuck on Harig 612s due to workpiece wear. I can't believe how much comes back to me even after being off the bench for 20 years. Thanks again. Nice work.
Using your Lathe to repair your Lathe! I love it! My Father was a Machinist before is was born so a little rubbed off on me. I'm now 57 and he's 83. I still enjoy learning Machinist tips and tricks! Thank you.
As always Keith, a very interesting video. Thank you for taking the time!
"Machine tool heal thyself!" Really interesting and impressive video.
Luke 14:23 🙂
I was surprised you didn’t preload the jaws some how before grinding
I first had the same thought, but then if he want the jaws the opposite way, a problem will happen. These jaws can be mounted either way.
Sorry for my English.
i think definitely pre load the jaws
No need. He was not grinding the gripping faces of the jaws.
It's a 4 jaw, no need to. The jaws move independently to allow the machinist to dial in the workpiece. If it was a scroll style 3 or 6 jaw, then yes a preload is absolutely needed.
Just gona say the same.
Brilliant job,never seen a chuck grinder before but yes it works,I love the idea of repairing a good solid chuck and not just buying new and discarding a good workhorse chuck that will last a lifetime,that to me is point of best practice engineering,now a retired machine tool setter operator from across the pond,I certainly will be watching your videos now,It brings fond memories of a job I enjoyed everyday of my life,God bless sir I look forward to your posts
I would say that is important maintenance. Neat to watch. Thanks Keith
This is one of THOSE videos that will be an excellent video for all of UA-cam, for refurbishing an old 4 jaw chuck... Great Job...! and definingly time well spent....!
Keith,
You now know it is as good as you need it. Great work.
Thanks for sharing.
Excellent video. Thank you.
Nice job diagnosing the issues and working them out. Good work.
At about 27:30 Ginger the shop safety foremen can be seen making sure everything is going good Keith. Keep up the good work. Aways a pleasure to see a master at work. Scotch bright the outside edge to clean it up. I know it doesn't matter to function but appearance matters.
And then a doggo at 28:11 comes it to make sure it all smells right. name?
Glad it worked out. I too was a little worried when you grouind the jaws while not in tension but it came out decent. Nice one.
Very cool.
Nice job. I am not a machinist but surprised you would not grind those jaws loaded. In the end it came out great.
Good observation for not being a machinist, when turn or grinding chuck jaws they should always be loaded/clamped. This insures they are ridgid for the cutting operation and more importantly under the same stress as when they are used. This will greatly increase accuracy.
@@gregolson1824 Well I was even thinking to remove chatter. But in the end he got it done.
@@richmccabe2902 There is no load on them when grinding. And they can be flipped around to grip from the inside so preloading them would probably not help overall.
I love the problem diagnosis and rectification processes.
Big job, Well done Keith, good for another 50 yrs.
Thanks Keith for the video. I not a betting man but I bet that someone in the past swap a jaw out on the chuck. Nice job on trueing the chuck up.
The information you're putting out there for posterity is priceless.
This is what it is all about, IMHO. Fixing and refurbishing vintage machinery and equipment.
I wish I knew half of what you probable already forgot Keith!!!! Great Job of showing how to fix that problem !!!!
It’s been a year or two since i last watched a video, good video and well done with getting healthier Kieth. Amazing job!
Well done, that was quite a side project. The precision is admirable!
outstanding job recycling that chuck and making it almost like new! I found a box long ago marked toolpost grinder, I'm going to have to investigate that now.
Thanks for the video! l appreciate you showing how to get more accuracy from your tooling. What impressed me most about this video is that having the tools available meant all that was required was the time to do it. KOKO!
I worked with a worn out chuck for over 20 years. As long as I never changed the set-up I was ok. Haveing this to help me all those years to go sure would have helped a lot. Awesome post Keith, Where were you 25 years ago, LOL.
Enjoyed the rejuvenation project!
Thanks. Interesting practical project.
Great Process, Way to start from the foundation and work your way out.
great video kieth thx 4 sharing your systimatic procedure on how to true up a chuck problem. thumbs up .
Keith, I can feel your frustration. It's another one of those "I want to do "A", but I can't because it requires that "B" be fixed (or changed) first. Aaahhhhhh, but "B" requires that "C" be fixed first. Grrrrrrrrrrrrr!!!!!! Way too often do I find myself in this kind of situation. Grrrrrrr!!!!!!
Maintaining tools ... and you have so many of them. Great to see the hoist being used again with the lathe, it just proved how needed those efforts were worth.
Nice recovery Keith!
Great Video! I would bet that the one Jaw that was off may well have come from a different chuck! you just never know what to expect with really old gear!
Thank you for allowing people to see a craftsman at work, very relaxing viewing, nice to see the foreman keeping an eye on things in the background as well.
I greatly admire your patience, Keith. I had some much more minor struggles with a much smaller chuck earlier this week, and I might have used some adult language during the process. 😊
9:30 you can really see the runout on the headstock side of the back plate......
all the way down in Orlando.........this is a wonderful explanation on getting
your runout out.......PB
seen its better days" heck that ol chuck is going through its best days now! with a owner like keith it will be use properly and well cared for from now on! nice work keith!!
Some days we work in the shop and some days we work on the shop.
I wonder when he is going to work on the Stoker Engine!
“The Practical Machinist”👏🏼
Awesome seeing all the steps and thought process that went into truing this chuck up.
Nice work Keith. Love seeing these repair/maintenance videos. Always educational.
I’m blown away. 😢 adjust studs and or grind id taper on back plate to seat.
It make me feel good to see someone else who takes the time to fix things rather then go buy new stuff that's most likely not made with the quality the older stuff is made.
That's the problem with the younger generation and it's not thier fault. They were raised in a culture of the throw away stuff and we were raised in a time of fix what you have mostly because we couldn't afford to go out and buy new things. We were raised when there was a TV repair and radio repair in every town ,shoe repair ,appliance repair shops and the lists goes on an on. Now there's hardly any repair shops because of our throw away wasteful society.
That was beautiful.
I don't know why but this video was very satisfying to watch. I think it's the thought of taking an almost useless tool and giving it a new life. That Chuck will serve you well for the rest of your life and maybe longer for the next owner. It's so satisfying to have the tools and skills to accomplish that.
Thank you again for sharing these videos with us.
Keith, thank you for all of the information you provided during this video.
That was a master class on how to properly apply true-up/diagnostic processes on an old piece of equipment. Perfect example of working out from the spindle of the lathe. Thank you for sharing the journey Keith.
You have got to be kidding!
@@garybrenner6236 - no. not kidding. Was a very thorough process. You not happy with it that is fine. I enjoyed it.
Awesome video!! Thank you again Keith, you are a real legend. Thank you for sharing all this amazing information
Your Confidence is is what makes your work scare to watch and perfection to behold. From time to time i have to tighten my jaw and look away.
Imagine that, a machine machining itself!
Another great video Keith. Thanks for sharing!
I have learnt a lot and this will be a great help for me in the future.
Great Job refurbishing the chuck. It's always better to repair then buying an expensive replacement.
Absolutely what I expected, if it’s broken, you should fix it. In the bustling era we are in, repairing and maintaining the tooling is in many cases a R&R with new. To show how to troubleshoot and correct the problem is far more important than to just replace. Besides there is little satisfaction in just replacing when modifying is possible. Two thumbs waiving at you Keith!
Thanks for sharing these videos. I really appreciate it.
Looks really nice! Made back when things were made to last, and this thing is lasting thanks to a little TLC!
I have folloved many machinist pros and I have noticed that when grind the chuck jaws you have to preload them with inner or outher ring - depend on what grind - there normaly is some slak in the sliding groves... hope it will go for a long time.
Keith - suggest you mark the mounting position. e.g. the face plate to the lathe. Therefore a 90-degree mounting plate does not interject an error.
I had a lathe and a good chuck, and it was not behaving like that. What I found was swarf just a single slice was in the threads. Yes threads. Once out the chuck trued. I think you are on to the issue here. I think the lathe needs to be verified and work outward. I suspect it is for another lathe. And I've seen jaws in stacks and chucks flat stacked feet tall. Surplus guys don't do us right all of the time. I take off my compound and put my tool post grinder on it. Yes, one loses flexibility but one doesn't always need it.
Very interesting video thanks for posting .
So cool. Thank you Keith. You earned my subscription.
thanks for the education
This old chuck must have been very well manufactured and tempered/hardened to be so dinged up and still have good tolerances after your truing process. Very satisfying to watch!
Enjoyed the troubleshooting and resolution! Thanks.
Great amount of work, thanks Keith :)
That grinder is terrifying -- and fabulous!
Thank you for sharing.👍
Nice job Keith!
Very cool. Using the tool to make itself more precise. I wonder if you had to undercut the steps in the jaw a little to account for whatever radius was on the corner of the grinding wheel.
Keith, jumped over here from your Brake Drum fun......always great the information you share,
best regards from Orlando, Paul
Machine maintenance and calibration important. I'm going to double check the chucks on my machines.
So many variables to consider.
Nice job! That took a lot of thinking, consideration and patience 😅
Loved it! Okay, back to the other video!
Great video Keith .
First view and a first comment, it’s a good day. About to go drive six hours round trip to pick up a No. 3 Canton Crane for $750, gonna be a heck of a day. No i will not be turning it into a hanging chair holder. It’ll get used to lift material to and from the big old 1919 Fay and Scott patternmakers gap bed lathe (11’ between centers with the bed fully extended) that’s in my shop. It’ll also get put to use moving big machine tables about, so I can get into the guts of the of the machines in the shop when needed. Someday I’ll have a big jib crane like Keith does, but this will do just fine for now. And just for reference, I’m 28 years of age. Fun to be a young person using really old machines and tools to make chairs (you guessed it! I’m a chairmaker).
Update: The crane is loaded up, tied down, and I’m east bound and down, loaded up and trucking back to seacoast NH where it will live forever in my shop, or until I die, whichever comes first.
Sounds like a great score... good travels to you👍
38:21 .. Well !!!!?? ... I would say that chuck is as good as BRAND NEW!! .. a 4-Jaw of that size and Quality (and now that accuracy) has to be worth well over $1000 , maybe $2000 ?? .. GREAT JOB Keith (again!!)
Great work and an interesting video!
Well Keith got a good video out of this problem.
Taking lemons and making lemonade.
Well done 👍🏻 nice job 😊
an excellent job on a chuck that accumulated its share of abuse.
excellent video
Another master class, thank you Keith 🙌
Really interesting. Thanks for posting
Nice video, I would have liked to see the chuck body on the surface plate to measure a few things, and I would have liked to see the face plate held in the jaws just for a quick check after grinding. great video and that chuck sure posed a bit of a challenge to figure out. Wonder how it got that way, maybe someone changed a single jaw at one time? cheers!
Thanks for sharing 👍
Happy Friday Keith! 😊
Keith, when tightening bolts "on a circle" it's always good to tighten them not in "going around" fashion but "going across" way. Like, here it'd be "top-bottom-left-right", not "12-3-6-9". Certainly not a matter of life or death, but it'll help to tighten things evenly.
Also, somehow this "side job" was more captivating than the "proper one", i.e. the brake drums. Cheers.
Very interesting
Fantastic job Keith! Looks really good after you refurbished that chuck.
I know it must wear you out getting criticisms or critiques but as a Certified Auto Technician it makes me cringe when I see you torque down fasteners in a non crisscrossing pattern.
Anyways I am loving the extra videos you are able to put out now that you have “retired”.
Bet it more true then when it was new
Excellent job Keith!
Very informative approach. 👍
Nice work Keith 👍👍
Glad the Shaw slots turned out to be ok (but it would have been interesting to see how they could have been trued up). Thanks for the video.
Rather than eyeballing those rings, I would have used the centering plug to find the machine's center and spaced them exact inches from center using the lathe's metrology.
Taking about 2 hours to save hundreds or thousands is a very good wage.
Thank you Keith!