I can hear at the end, by the reaction of your audience in the background, he/she/they were as impressed with your skill and teaching as we are, still today. Thank you Mr. Peterson for all that you do.
@doorguru168888 You are right--not them. All 4 jaws are made that way. Imagine how heavy they would be if solid. Also--at the foundry castings must be made fairly thin to reduce shrinkage as the molten iron cools.
i like your videos !! you do such a good job teaching !! thank you for all the help !! anyone wouldnt know where i could get a operaters manual for a craftsman/dunlop 109.0703 6" lathe ?? i know its a baby compaired to this one here but i think its pretty cool.
I'll try to do one in the future. In the mean time, buy a copy (on ebay) of the SOUTH BEND LATHE booklet entitled "How to Run a Lathe". Its old, but still the best.
Isn't that the way it always goes? If you were trying to do this for yourself it probably would have taken 10 minutes. Never thought of using 2 keys. Thanks for the tip!!
Ive got a small craftsman 6" a 109 lathe. I dont beleive I have the circles cut into the face of the chuck. Could I cut these into the check face with an ordinary cutter? Not sure if the chuck is hardended or not. Will the cutter break when it goes across the 4 grooves in the chuck.
How would you center a piece of square stock or something that isn't round ? Would you use some cylindrical stock that has the same diameter as the square stock or ? great vid, btw
I have learned over the many years that listening will greatly improve your knowledge base. You sir have probably forgotten more about machining and machine tools than most machinists today know. Thank you for the time and energy you have put into these videos, they are very informative, and the fact that you deal with an Atlas is a bonus for me personally.
Good information. I use a similar method when setting the precise zero voltage output of an inclinometer when it is set at perfect zero taper on the continuous casters that I wire upon refurbishment for the steel mills. I thought about it a while and used the locking screw to oppose the jacking screw until I achieved a precise zero voltage output. When I started doing it this way, no one would believe I was able to do it that quickly until I showed them in person. Thank you for the videos
Great video. Thanks! I expected a video showing how to use a four jaw chuck to hold square or rectangular stock. I'm not a machinist (but I'm learning!) and I had read that most machinists use a three jaw chuck for round or hexagonal stock and a four jaw chuck for pretty much everything else, like boring a hole in a rectangular plate or block. I guess if you want to avoid switching between heavy chucks, a 4 jaw chuck and a fast way to center round stock would be the most versatile.
I had to come see the first video Mr. Pete. Thank you for linking back to it from your 15th Anniversary video. And thank you for your dedication to this channel and all of the interesting videos. I can't wait for the next anniversary special.
Watching your video's makes me wish I had you a a mentor (In Person) I think I could learn a lot. I have learned from your video's. Did you used to teach shop class? Do you have a video that shows how to turn a semi- machined face plate to fit on a plain back chuck? I need to do this, and am not sure how, esp. getting a nice close fit to the chuck. The register I think it might be called. Not the fit to the spindle, that seems OK. Also How much of a disadvantage is a "plain" apron? No Clutch
Great Video, I've watched it a couple of times as I am new to machining for a hobby. I just recently purchased a 4 jaw. I was wondering if you can do a demo on centering a square bar in a 4 jaw please! Thank you!
Hi, I'm using the same method too and have since love using 4 jaws over 3 jaws. The only gripe is it's a tad difficult to tighten all 4 clamps without upsetting the dial indicator a little. How do you tighten the the jaws without upsetting the dial?
I like this very much, tomorrow our teacher told us to set up individually a round bar in a 4 jaw chuck, I hope I would set it up faster like you did, if not I will get a failing grade XD
I just inherited an Atlas Model 618, with Starrett gauges etc, and I had no way of learning how to use it except for your videos. Thank you for sharing your wisdom with the rest of us! INVALUABLE! Please post more, belt maintenance and adjustment, power wiring to handle the heavy current load, mounting etc would all be helpful. Thanks again!
Hi Tubal, great vid like always. Just a couple of suggestions. It would be great if you could see the indicator (I know you mention this but it really would be great to put it in). Also, your hands are hidden so you can't see how you turn the keys in the same direction to move or opposite to tighten down. Lastly, why didn't you tighten down with two keys? Would that help the job accuracy? Anyway, great tip, I'm using it next time I get out the four jaw.Thanks a million!
Your videos are amazing and among the best on the web. This video has been very valuable to me as I have struggled and frustrated over the 4 jaw chuck on my TH54 Atlas for quite while now. A 3 jaw chuck is quite an expense and you have convinced me that I don't need one as it is only for convenience. Keep posting. I am learning so much from you.
Again, another great video! I was trying this out today only using one key. Boy, I spent a lot of time getting things centered. I will make a second key and follow your advice. THANK YOU! You are such a great teacher.
This is risky, but most people put the lathe in back gear to lock spindle. Then put an adjustable wrench on jaws & jerk counter clock. Sometimes a lead hammer also used, but you can strip gear teeth if not carful
gidayI am not using pre machined bar in my lathe, its been sitting outside for a few months. what sort of tolerances would be expected with centring it up to make a item? I am able to get it to about 15 thou by eye. also would a good thing to do be make a indicator mount for my tool post as my stand is crappy?
@hbfowler Sorry, not familiar with an empire lathe. See if you can find one on ebay or do a google search.
I can hear at the end, by the reaction of your audience in the background, he/she/they were as impressed with your skill and teaching as we are, still today. Thank you Mr. Peterson for all that you do.
+specialks1953 Thanks
Elvis LIVES and he's a machinist!!
thanks mate i love your videos, i learned so much from you.
@LG6327 These are all the same lathe--some models may not have the gear box. 600 to 800 is a fair price.
It should be soft enough to cut grooves. Check with a file. I never saw a 4 jaw without the circles.
@doorguru168888 You are right--not them. All 4 jaws are made that way. Imagine how heavy they would be if solid. Also--at the foundry castings must be made fairly thin to reduce shrinkage as the molten iron cools.
I learned using two chuck keys on the four jaw from an old machinist in 1974...Mr Papp, my Voc. Machine trades Instructor.
@danahickey41 Do a search on tubalcain . They will all come up.
I would say its fairly light duty. Remember, everything about an Atlas lathe is light duty compared to heavy duty industrial models.
@newcomer9747 Just keep lightlt tightening them one by one. Go around about 4 times--each time getting slightly tighter
i like your videos !! you do such a good job teaching !! thank you for all the help !! anyone wouldnt know where i could get a operaters manual for a craftsman/dunlop 109.0703 6" lathe ?? i know its a baby compaired to this one here but i think its pretty cool.
Thanks for watching. Ebay is your best bet.
thanks !!
I'll try to do one in the future. In the mean time, buy a copy (on ebay) of the SOUTH BEND LATHE booklet entitled "How to Run a Lathe". Its old, but still the best.
@jben839 Yes--8" is good, and get the lighter one
Your knowledge and videos never cease to amaze me, I'm always learning something new from your videos. Keep up the great work.
"tubalcain 2" - ahhh, the early days when you were hungry ;-)
@PortableQRP From the book of GENESIS.
Isn't that the way it always goes? If you were trying to do this for yourself it probably would have taken 10 minutes. Never thought of using 2 keys. Thanks for the tip!!
Ive got a small craftsman 6" a 109 lathe. I dont beleive I have the circles cut into the face of the chuck. Could I cut these into the check face with an ordinary cutter? Not sure if the chuck is hardended or not. Will the cutter break when it goes across the 4 grooves in the chuck.
how do they do eccentric turning sir? what adjustment we need to make in the chuk?
WATCH THIS ONE. MACHINE SHOP TIPS #160 Making Eccentrics for Steam Engines Logan lathe tubalcain
tanq sir
Hmmm Tubalcain, interesting word, what does it mean? Do you ever travel east?
How would you center a piece of square stock or something that isn't round ? Would you use some cylindrical stock that has the same diameter as the square stock or ? great vid, btw
why would anyone want to use a chuck like that if you have to dial it in every time you take something out of it?
Lol did you yell "fuck!" Right at the end! haha excellent video teaching generations to come!
I have learned over the many years that listening will greatly improve your knowledge base. You sir have probably forgotten more about machining and machine tools than most machinists today know. Thank you for the time and energy you have put into these videos, they are very informative, and the fact that you deal with an Atlas is a bonus for me personally.
Thanks
I have never seen using two chuck keys on a Four Jaw Chuck. Thank you.
Good information.
I use a similar method when setting the precise zero voltage output of an inclinometer when it is set at perfect zero taper on the continuous casters that I wire upon refurbishment for the steel mills.
I thought about it a while and used the locking screw to oppose the jacking screw until I achieved a precise zero voltage output.
When I started doing it this way, no one would believe I was able to do it that quickly until I showed them in person. Thank you for the videos
Great video. Thanks!
I expected a video showing how to use a four jaw chuck to hold square or rectangular stock. I'm not a machinist (but I'm learning!) and I had read that most machinists use a three jaw chuck for round or hexagonal stock and a four jaw chuck for pretty much everything else, like boring a hole in a rectangular plate or block.
I guess if you want to avoid switching between heavy chucks, a 4 jaw chuck and a fast way to center round stock would be the most versatile.
I had to come see the first video Mr. Pete. Thank you for linking back to it from your 15th Anniversary video. And thank you for your dedication to this channel and all of the interesting videos. I can't wait for the next anniversary special.
👍👍👍
That's a pretty neat trick...never thought of using two keys....Thanks!
yup...felt the same
Watching your video's makes me wish I had you a a mentor (In Person) I think I could learn a lot. I have learned from your video's. Did you used to teach shop class?
Do you have a video that shows how to turn a semi- machined face plate to fit on a plain back chuck?
I need to do this, and am not sure how, esp. getting a nice close fit to the chuck. The register I think it might be called. Not the fit to the spindle, that seems OK.
Also How much of a disadvantage is a "plain" apron? No Clutch
Great Video, I've watched it a couple of times as I am new to machining for a hobby. I just recently purchased a 4 jaw. I was wondering if you can do a demo on centering a square bar in a 4 jaw please! Thank you!
Hi, I'm using the same method too and have since love using 4 jaws over 3 jaws. The only gripe is it's a tad difficult to tighten all 4 clamps without upsetting the dial indicator a little. How do you tighten the the jaws without upsetting the dial?
I like this very much, tomorrow our teacher told us to set up individually a round bar in a 4 jaw chuck, I hope I would set it up faster like you did, if not I will get a failing grade XD
I just inherited an Atlas Model 618, with Starrett gauges etc, and I had no way of learning how to use it except for your videos. Thank you for sharing your wisdom with the rest of us! INVALUABLE! Please post more, belt maintenance and adjustment, power wiring to handle the heavy current load, mounting etc would all be helpful. Thanks again!
Hi Tubal, great vid like always. Just a couple of suggestions. It would be great if you could see the indicator (I know you mention this but it really would be great to put it in). Also, your hands are hidden so you can't see how you turn the keys in the same direction to move or opposite to tighten down. Lastly, why didn't you tighten down with two keys? Would that help the job accuracy? Anyway, great tip, I'm using it next time I get out the four jaw.Thanks a million!
Thank you! I actually think I have that book on CD somewhere, but forgot I owned it! Thanks again.
makes so much sense, they say the simple things are the best, only easy once you know, thank you Mr Pete
👍
Your videos are amazing and among the best on the web. This video has been very valuable to me as I have struggled and frustrated over the 4 jaw chuck on my TH54 Atlas for quite while now. A 3 jaw chuck is quite an expense and you have convinced me that I don't need one as it is only for convenience. Keep posting. I am learning so much from you.
At last an easy way to set a 4 jaw. Awsome vid. I used to hate the 4 jaw because of the set up time but this trick sorts it no sweat.
Could you do a demo on centering a piece of square stock in a 4 jaw chuck?
Again, another great video! I was trying this out today only using one key. Boy, I spent a lot of time getting things centered. I will make a second key and follow your advice. THANK YOU! You are such a great teacher.
I had no idea jimmy stewart knew so much about lathes! no offense sir, your video was very informative but you sound so much like him!!!
Thank You once more
yo estudio mecanica de produccion , es muy interesante el video
saludos desde Peru :)
Holy Moly - how simple, how clever! To think I used to dread using my 4-jaw! I think I'll go right up and give this a try!
THANKS!!
Great video. I too am struggling with the four jaw but getting better. Thanks again...
i see.....after watch'n your vids I can tell your are a ball of knowledge!
Thanks for the tip. Are you a traveling man? Can't help but to notice the "Handle"
hi, how is everyone. doing engineering research and stuffs? allright!
You are a genius. Your videos explain everything perfectly. Many thanks!
Mr Pete .
I have a Atlas Lathe same as shown in your video .
I have a question : What is the correct way to change the chuck on thin model lathe ?
This is risky, but most people put the lathe in back gear to lock spindle. Then put an adjustable wrench on jaws & jerk counter clock. Sometimes a lead hammer also used, but you can strip gear teeth if not carful
Thank you! The two key method is a great idea.
gidayI am not using pre machined bar in my lathe, its been sitting outside for a few months. what sort of tolerances would be expected with centring it up to make a item? I am able to get it to about 15 thou by eye. also would a good thing to do be make a indicator mount for my tool post as my stand is crappy?
+rob tyler Yes--make a stand & use an indicator
thanks for the info!
Thanks again Mr Pete Learning so much from you, love all your videos.
Thanks
Good to know.