Pretty slick. I … Pretty slick. I spent a lot of time in the trade but haven’t seen the bearing trick. I’ll make one of these tools as soon as I have a chance. I have a 9″ South Bend of 40’s vintage. Check out a few of my machining projects some time.
Thanks for the tip.
John H.
I am just starting … I am just starting out in school now for machining . I have even bought a lathe and mill to do it at home .I showed my instructor your video and even he was impressed. I’m going to go make one of these today! Also hud42cdo is correct you are discharged for the day if you leave your key in a chuck without your hand on it.
@alderaforall I am … @alderaforall I am not disputing the results: I can see that .001″ runout is better than .003 runout. As I said, I am an amateur at this and just couldn’t see how it works to make the part “more centered”. The part is round, the chuck automatically centers the part, yet this method makes a considerable difference in accuracy. Yes, I agree it is very effective, I was only hoping to find out WHY. I’d like to understand the mechanics of how this works, that is all.
using his method he … using his method he got the part within a thou or less. Much better than 3 thou. Unless you’re the be-all of machining you are never going to just set a machined part in the chuck and have it be running true. Never trust a 3 jaw chuck to be self centering. A solid setup is what makes a good part. You should consider adding this guys tip to your toolbox, it is simple, fast, effective, and best of all, cheap.
Hi; I am just an … Hi; I am just an amateur, and I don’t want this to sound like negative criticism, I’m just confused: You are using a 3-jaw chuck, which is supposed to be “self-centering” in any case (at least within say .003″ or so for a good chuck”), so how does this work to make the part “more centered”? I see the part “running out” when it is loosely clamped, but if you pushed it further into the jaws and then clamped, wouldn’t it be as centered as the chuck can make it anyway?
I’m pretty quick … I’m pretty quick with an indicator but that little gizmo is slick for indicating the face of that first part. Awesome trick! gonna build me one.
Sometimes you just … Sometimes you just gotta weigh your options, consider the consequences, hope for the best and then “git er done”!
Learnin’ from your mistakes helps too.
Better yet, never … Better yet, never never turn on lathe with chuck key in chuck.
If you must turn on lathe with chuck key in chuck, remove your hand before doing so!!
I don’t use an … I don’t use an indicator to check the part. I only did it in the video to prove to the audience that this simple technique works good enough for lathe operations. REMEMBER, safety comes first. NEVER turn on lathe with chuck key in chuck!!
Using appropriate ball bearing bolted to a piece of cold rolled makes indicating in the lathe a breeze!!
May 8th, 2010 at 8:58 am
Pretty slick. I …
Pretty slick. I spent a lot of time in the trade but haven’t seen the bearing trick. I’ll make one of these tools as soon as I have a chance. I have a 9″ South Bend of 40’s vintage. Check out a few of my machining projects some time.
Thanks for the tip.
John H.
May 8th, 2010 at 8:58 am
good lesson!
good lesson!
May 8th, 2010 at 8:58 am
do not forget to …
do not forget to tigh’n your chuck
May 8th, 2010 at 8:58 am
Well filmed, good …
Well filmed, good resolution, good audio, useful tip, what more can I say, a very good job! Congrats.
May 8th, 2010 at 8:58 am
I am just starting …
I am just starting out in school now for machining . I have even bought a lathe and mill to do it at home .I showed my instructor your video and even he was impressed. I’m going to go make one of these today! Also hud42cdo is correct you are discharged for the day if you leave your key in a chuck without your hand on it.
May 8th, 2010 at 8:58 am
neat tip-the old …
neat tip-the old timer who taught me would skin us youngsters alive if we EVER-left the key in the chuck-
May 8th, 2010 at 8:58 am
@alderaforall I am …
@alderaforall I am not disputing the results: I can see that .001″ runout is better than .003 runout. As I said, I am an amateur at this and just couldn’t see how it works to make the part “more centered”. The part is round, the chuck automatically centers the part, yet this method makes a considerable difference in accuracy. Yes, I agree it is very effective, I was only hoping to find out WHY. I’d like to understand the mechanics of how this works, that is all.
May 8th, 2010 at 8:58 am
using his method he …
using his method he got the part within a thou or less. Much better than 3 thou. Unless you’re the be-all of machining you are never going to just set a machined part in the chuck and have it be running true. Never trust a 3 jaw chuck to be self centering. A solid setup is what makes a good part. You should consider adding this guys tip to your toolbox, it is simple, fast, effective, and best of all, cheap.
May 8th, 2010 at 8:58 am
Hi; I am just an …
Hi; I am just an amateur, and I don’t want this to sound like negative criticism, I’m just confused: You are using a 3-jaw chuck, which is supposed to be “self-centering” in any case (at least within say .003″ or so for a good chuck”), so how does this work to make the part “more centered”? I see the part “running out” when it is loosely clamped, but if you pushed it further into the jaws and then clamped, wouldn’t it be as centered as the chuck can make it anyway?
May 8th, 2010 at 8:58 am
I’m pretty quick …
I’m pretty quick with an indicator but that little gizmo is slick for indicating the face of that first part. Awesome trick! gonna build me one.
May 8th, 2010 at 8:58 am
Gracias for mucho …
Gracias for mucho kind comment. I’ll git my # uno spanish gringo to decipher. Later, Bro.
May 8th, 2010 at 8:58 am
Sometimes you just …
Sometimes you just gotta weigh your options, consider the consequences, hope for the best and then “git er done”!
Learnin’ from your mistakes helps too.
May 8th, 2010 at 8:58 am
wao … amazing …
wao … amazing buen video
yo soy estudiante de mecanica de produccion , me ayudara mucho este video .
saludos desde PERU
May 8th, 2010 at 8:58 am
This is of great …
This is of great help for me thanks
May 8th, 2010 at 8:58 am
That’s some tip! …
That’s some tip! Thanks!
May 8th, 2010 at 8:58 am
Great tip, thanks.
Great tip, thanks.
May 8th, 2010 at 8:58 am
Great idea, thank …
Great idea, thank you
May 8th, 2010 at 8:58 am
ouch, dont even …
ouch, dont even make that thought come into my head
May 8th, 2010 at 8:58 am
Better yet, never …
Better yet, never never turn on lathe with chuck key in chuck.
If you must turn on lathe with chuck key in chuck, remove your hand before doing so!!
May 8th, 2010 at 8:58 am
I don’t use an …
I don’t use an indicator to check the part. I only did it in the video to prove to the audience that this simple technique works good enough for lathe operations. REMEMBER, safety comes first. NEVER turn on lathe with chuck key in chuck!!
May 8th, 2010 at 8:58 am
Great tip
Great tip
May 8th, 2010 at 8:58 am
The more simple it …
The more simple it is, the better and more durable it is.
May 8th, 2010 at 8:58 am
What did you see …
What did you see that was dangerous? He used the KISS principle and it was quick. Great tip!
May 8th, 2010 at 8:58 am
oh wow, thats …
oh wow, thats awesome. experience at work right there! Thanks!
May 8th, 2010 at 8:58 am
God Job !
I am a …
God Job !
I am a hobbyist spending almost hours to get my workpieces runnig fine .