Need a Live Center For your Lathe?? Lets Make one !
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- Опубликовано: 5 фев 2021
- Having a live center with multiple tip options is great, making it yourself is even better. This video will get you started. Take a look !!
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To save everyone from asking or typing a suggestion, yes, a tapered roller bearing would be the best for this build and take the most load. For my purposes, this will be used for small parts and in light pressure setups.
A related question: should ball bearings not be lightly preloaded? I was expecting a screw and washer in the back of the rotating part to squeeze the inner races together.
Joe,
One can see why you did as you did. The only question I have is how are the bearings holding up. My live center is very accurate, but not always right for the job. I have a chunk of 17-4 just sitting there and a stack of skate board bearings. Perhaps for occasional use they would work OK.
Given the small size, angular contact would be the cats meow for those looking to overkill the design....but good old conrad bearings are plenty good since they won't see much radial load vs the axial load.
Wouldn't tapered roller bearings call for a tension control adding more delicate mechanics? Thought about head stock tapered bearings...
@@dougberrett8094 As I understand it, plain single row ball bearings are rather sensitive to missalignment of the axle, but can actually take substantial axial loads. Axial load specs are usually 10% - 50% of the radial load rating, deep grove types being best. Using 2 bearings with a spacer works fine for most purposes. As long as You are not making a precision spindle or similar...
I need to watch this a couple of more times, it is going to be really useful. You are by far my favorite machining resource on RUclips.
There are some quality channels. Thanks.
@@joepie221 you and RobRenz are in my top 3 for sure.
@@stonevalleyozark475 I appreciate that.
Great live center it should last for decades. I made a large live center back in the 70's and it is still working for me.
I worked on CNC for a couple of years in the past, and I have been watching engine lathe machining videos, and frankly I'm amazed at the amount of skills and the quality of the parts machined there.
Its a very capable machine.
Joe, your center needs a bearing for the axial thrust load. The ball bearings you used are only intended for radial loads. An angular contact bearing in the back with a ball bearing in front would work better. A tapered roller bearing could also be used in lieu of an angular contact, or you could add a thrust bearing to the back of your double ball bearing stack-up. In its current configuration, those two bearing will not last very long.
Long enough for occasional work. This is not a turbopump.
Honestly, I was thinking along the same lines but I also have not really tbought about what thrust load really is on a live center.
Ball bearings can be used in any light radial / axial application. I think you'll find that most power drills use a couple of ball bearings, adequate for purpose, cheap and plentiful.
@@TheRunereaper A center is not really a light axial load application; even a small center. This is especially true when the center is used for press turning as Joe demonstrates. If you take a closer examination of the bearings used in drills, when it's just a pair of what looks like conventional ball bearings, you'll likely discover that one of them is a deep grove type, which are designed for axial loads. Also, there is a staggering difference between the axial loads on a hand drill verses a live center. The max load on a drill is ~200 lbs, but you can get more an 1000 lbs on a tailstock.
@@EDesigns_FL With respect, most "conventional" ball brgs are deep-groove. I made an almost identical live centre about 35 years ago and fitted sealed ball brgs (to protect from grinding dust and coolant ingress). I made the ID and OD to fit the most common size of brg. at the time and fitted new ones which lasted for about 20 years on fairly infrequent service. For pressure turning you don't usually need to put half a ton of load on, even though you can. I must admit, I never measured it.
These "Joe Pie" mini projects are one of a kind. Easy yet useful, simple yet brilliant. We appreciate them Joe!
Reeeaaalllyyy? One person gave this thumbs down? I'd give 10 thumbs up if I could. Thank you Joe...Im not a machinist but I watch every video...Id love to have HALF the machines u have...even a quarter would be nice. I learn something new every time..👍👍👍👍👍👍👍👍👍👍
I can't believe it. I was needing a new life center and now you show us how to build it. At this point I have no excuse. Thanks my dear gentleman and regards from Florence ITALY
I just discovered a need for one of these for my wood lathe to turn a nylon hammer head. Even held as tight as I can get it with very light cuts the nylon rips out of the four jaw chuck and makes a nasty groove with the tip of my 60degree live center...one of these came to mind as did youtube to see how to make it....well your video was actually suggested in my feed ...very fortunate and your way of doing things earnt you a new subscriber .
Your narration and lathe work are exceptional thankyou
Hey Joe, how about a wobble broach project. That would be awesome
Yea joe that would be very cool and including the grinding of a few broach styles too 😁😁😁😁 pretty please.🙏🙏🙏
Third that from me Joe, yes please Sir
Absolutely!
Yes please!
AvE already did this 7 years ago. ruclips.net/video/M3Ul-s9_MA0/видео.html
I was sitting here going back over some of your older posts and this one caught my eye again. I made one of these a bit biggre using alternator bearings and have 4 different inserts for it. Love it ! It is invaluable when needed. It will stay in it's little wooden box for months and when needed there is just nothing that works so well. Thanks Joe.
Great idea!! I especially like the suggestion of making multiple different "tips" to suit your needs, fast and easy to change. Thanks for sharing!!
As usual Joe, a great short video to get the motivation back. Thank you.
Never knew i could enjoy watching you make something that i have no clue what its purpose is or will be. Its the precision of your machinery and what you can make it do, that amazes me. A pleasure to watch.
Bloody brilliant, Winky made one that was larger (single purpose), I was going to make one too, but after seeing this, and the interchangeability, plus smaller size, I'm all over this like a rash, Thanks, Joe.
Scott.
Thanks for this. Made myself one with 1/2" dia pointed end with MT3 for tailstock. Been needing a little one and this motivated me to do the deed. I chose to have tight slip fit so I can change the tip and not make another MT3 holder. Plan on having conical tip also. Managed to do this and not have runout which is going some for me. (5C collet upgrade helped immensely)
excellent project Joe, heading off to my lathe now to make one!!
Great idea and interesting and useful little gadget Joe. Enjoyed watching, on the to make list! Cheers, Jon
I really like this project. One of the few I've seen on the internet that I actually want to build
Another superb idea Joe, thank you very much. Your forays into model making have given your video subjects a whole new lease of life. I think that you must now have the widest spectrum of machining subject matter of any channel, and for that I am very grateful. Best wishes and long may you prosper.
Thank you very much. The model direction truly has presented a lot of new material possibilities. Fun too.
Thanks, Joe.
Your projects are quite valuable and easy to understand thanks to your clear and concise explanations. Please continue to share your wealth of knowledge with those of us old timers who are new to this field.
Capt. Art
I'll give it my best shot.
Finally a professional machinist Youtubue channel!!!👍😸
Quick but definitely not dirty! Thanks, Joe.
Nice handy little part. Thanks for sharing Joe.
I haven't got a lathe, nor have I used one since school 40years ago, but I really enjoyed watching you work. Beautiful.
Thank you very much!
Just wanted to say "THANK YOU". I am an absolute novice, hobbyist with a Smithy Midas 1220 that I've had for over 10 years, with VERY little tooling (have to use a hacksaw to part a piece off) and this video made me want make my first attempt at some real precision work. The bearing shaft is a couple of thou too small and the center shell is a couple of thou too big but I am happy with it and best of all, IT WORKS. The whole thing cost me $14 for the cheap bearings at Kaman and about five days working on it during breaks in other projects. I just need to learn what speeds, feeds and bits can give me the best finish. Once again, thank you for putting this out there. Jim in Abilene, TX
You always have the best small projects to make a novice machinist's life and bank account a little easier. Thank you Joe.
Glad to help
You appreciate us watching, feel like I should be the one being appreciative your kinda doing all of the work and I'm getting All the benefits. Idk this is a huge joint in my hand
Hi Joe. Not just useful, but uplifting. Cheered me up just watching you explain and manufacture this useful tool. Thank you! BobUK.
Thanks Bob.
Yet again another excellent video. I'm relatively new to machining and projects like this which may seem very basic and obvious to you are a real help to people like me!
Thank you for your time and knowledge another great video can’t wait to try to make this live center
Super video. I've been planning on making a taper attachment and this has helped a lot. Thanks Joe
What a great idea. I was just thinking about buying an MT2 live center afew weeks back but hadn't gotten to it yet
Excellent tool, can’t wait to make my own. I’m a big fan of pressure turning and have had to pressure turn some rather large items over the years that are probably just a bit to big for the lathe I was using.
Great work, thanks again for continuing to make videos!
Make sure the bearing will take the load.
Nice video, homeskillet. Nice center too. Looks like a fun little project- I'd definitely make one if I had a lathe...
Great project for a snowy Sunday waiting for this evenings Super Bowl. Thanks Joe!
I think Mahomes is going all the way.
@@joepie221 Anybody BUT "deflate gate" Brady! I am a life long Bills fan!
Brilliant Joe - absolutely brilliant. Thanks
Amazing idea, on my list of things to make this month.
Precision engineering right here. Thank you Joe. Regards Gareth
Nice video explaining how to make a very useful tool and from that unlimited attachments to suit your individual needs. Thanks Joe! For those concerned about the axial load there are two steps that can be added.
1) build an inner spacer the exact length as the outer spacer and now the lower bearing will help take about 1/2 of the load where currently is is acting only radially.
2) in addition to the above bore a deeper small inner pocket to exact dimensions for a thrust bearing...which would involve some precise measurements and understanding the bearings and their interaction very well.
If you are worried about an axial load perhaps add step 1...Joe was showing us how to come up with a wonderful solution on our own that will work very well for many applications. Thanks again Joe!
Why not use three of the same bearings with no spacers or buy two bearings with side seals and one bearing without side seals and place it between the two bearings with side seals, simple. Equals no spacers to make and it triples the axial load capacity.
@@wwilcox2726 three bearings would work as well...but my thought is that this is a smaller live center for light loads. Also...the further apart the bearings the less radial deflection at the tip of the center. Joe showed us how to achieve that is a very quick and inexpensive way that will work for most applications. If I were to build a little center like this one I perhaps would only have added the center spacer.
Thanks Joe, I pressure turn pad cups and tone hole rims from brass and sterling silver sheet for musical instrument repairs. I’ve been meaning to do something like this for a long time. Mine is 1” CRS and a couple of skate board bearings I had.
Made this last week, turned out to be very useful. Thanks Joe!
Awesome project and very well presented, thank you Joe 👍
What cool attachment to add to the tool box,,& very useful too. Off subject, now proud owner of a 1941 LeBlond regal 17, Model # D-6251. Will be showing it off on our channel as soon as she is leveled up, and transmission gears are inspected prior to use. Thx Joe for the live pressure center tip. Bear
Looking forward to seeing it.
Saved on my to do list. Super 👍👏👍👏👍👏
Thank you again for your very useful tips
Good tip about the material being cool. This is something i learned the hard way. The part WILL shrink when it cools, by up to a couple thou easy. I blew right past a critical dimension just the other day by not paying attention to that fact. Part was good to go when i mic'd it. Walked away to change tools and set up for the next op. re-checked it and it was under... womp womp. Priceless advice as always, thanks Joe!
Its something many have learned the hard way. You are not alone.
Another great piece of work...Thanks for sharing it with us.
Now that is a really good project. Thank you.
Thanks for this Joe, I am a watch maker and have been needing a live center for my 8mm WW patern lathe tailstock. Now I just need to take the time, I have the bearings. Maybe after the first of the year.
Great little gadget Joe. Greatly appreciate your professional outlooks and capabilities channelled towards the amateur engineer’s outlook. That’s extremely helpful. Even applies on my elderly Drummond M lathe that celebrates its centenary this year!
Hi Michael, yours must be one of the very first of the M Type!
Could well have been. Number is 372, if I recall.
@@michaelwaldron3222 Hi Michael, an early production model then; www.lathes.co.uk/drummond/page18.html
Looks very handy. Thanks for the video Joe.
Hi Joe, i have made same as this but for 5" to 8" id pipes. Liked it very much
It’s always gratifying to watch a master at work.
Thank you.
Another great project for me to do thank you Joe! Great idea!
Nicely done, sir. I always enjoy your videos - it's like coming to class when you actually enjoy the topic. Hope all is well! - Tom Z
Nice work and very informative Joe, I made a 6" 3 jaw chuck live center. great for pipe and armature shafts
Excellent video and info as always!!
Yes! A nice _little_ project shown in a *great* video.
Thanks.
Excellent work! Wish we could click the thumbs up more than once😎😎
Great video as always, thank you for your time and knowledge
Very simply explained. Thank you for this valuable resource!
This is light duty. Incorporate a thrust bearing for high pressure.
Great video. You always make it look easy. Thank for all your hard work.
My pleasure!
Not hard but so simple and straight forward in its construction. Well done sir.
Nice consideration for the snowbound guys. Well played.
Cool little project and very useful. As usual, chock full of good info.
Glad it was helpful!
Great video and build Joe, thank you!
As always, great presentation and useful shop aid.
Keep up the good work...
Its light duty, but will work in a pinch.
Cool project, Joe. Thanks again!!
That is a great couple of hours in the shop and a useful tool as a result.
I think its a must for model makers.
Another very handy tool Joe, thank you!!! Shirts look awesome man!
Thanks Ray. Pick a size and color and I'll send you one.
Another good one, Joe! Many thanks yet again.
Very good design! Thanks for sharing!
Excellent idea Joe. Thanks much.
Very cool demonstration. I have made a live center and made alternative heads for it. I highly recommend it!
Being able to swap heads like that is incredibly handy.
@@joepie221 agreed! I love multitools! :)
Cool project, thanks for sharing!
Nice little project! Thanks!
Nice work as usual Joe, great little project, thank you 👍😀
It is handy, but use thrust bearings if you plan to buy the bearing first.
Im definately gooing to make one of them. thanks for showing us
A nice project and a valuable tool for any level of lathe and hobbyist. Thank you. Subscribed and liked - wish I could do that ten times ;).
Thanks for the sub!
Thanks for sharing! A nice project
Thank You, never seen the chuck mount idea before!, its great!
I can see that I have to make one of these for pressure turning small parts, seems like a real time saver. Any old bearing will certainly do for this application and limited use, but if needed for heavier loads and better tir, I found the internally preloaded double row small INA bearings are very good. More expensive though, but the single bearing unit is also nice feature.
Really elegant. Definitely gonna make one to replace my huge livecenter that always gets in the way.
A quirky bit of kit there . That's a definite one to make in the future ! Cheers .
Fantastic idea ! I’ve got to make this. Thank you !
Have fun!
Nice work as usual. Thanks Joe.
Very interesting Joe I will be making one or two of those.
One body with several tips. Perfect.
Fabulous Project & just what I need - thanks 🙂
It light duty, so be gentle. Add a thrust bearing up front if you plan to really load it up.
Great video will have to make one of these thanks for the suggestion...
Very NICE!...and very handy! Joe, you are GOOD!
Thanks.
I literaly ordered a live centre 6 hours ago for delivery today and woke up to this in my youtube feed!
I do need one on a #1mt though because its a mini lathe and i cant spare the room. I'm gonna make a negative centre for my dads lathe though.
Wonderfully done!
Haven't commented in a while, but still watching your most excellent RUclips channel Joe! From one teacher to another, cheers brother! 🍻
If my memory serves me correctly, you were the powered parachute pilot. Good to see you back.
Yessir! Been here all along. Just lurking around 😎.
Nice little centre Joe, here I was thinking it was for the model lathe. I was considering designing and making something like this, but the smaller size is very intriguing, might be a nice adaptation for a mini chuck in the tail stock as well. Thanks and cheers!
This video is great tutorial, even if there is needed to modify or upgrade original center.. Thanks for ideas!
Thank you very much it is both interesting and practical. I need to make one for my Unimat
Glad it was helpful!
Very nice tool, thank you for shearing
Very useful project, thanks for sharing
very good joe..thanks for your time
Now on my to do list. Thanks for this smply and usefull idea.
The last live centers I made were a 4" diameter 45° (90° included) and one that mounted a drill chuck in place of the center tip.
Nice little project