On an engine lathe, picking up an internal thread to re-cut it, can be frustrating. This video shows a rock solid technique for getting the job done. Take a Look !!
Пікірлер: 397
@Ujeb082 жыл бұрын
where would we be without the dial indicator? a true friend of the machinist!
@joepie2212 жыл бұрын
Absolutely one of the most important tools in the box and one of the first things a new machinist should buy. QUALITY !!!! Buy nice or buy twice :)
@minigpracing30684 жыл бұрын
Even though I don't have some of these machines, I always get some value out of these videos. Some day I'll have a small shop.
@peterpocock90624 жыл бұрын
Joe, putting the DTI on the end of the boring bar was bloody brilliant. I can see some other uses for this idea! Well done Also, when you visit the Fang Farrier (dentist) don't be shy about putting in a request for his or her broken tools. They only throw them out, and they can be very useful to us "engineers" 😎
@joepie2214 жыл бұрын
You can find a surprising amount of small useful tools at gun and knife shows.
@johndonlan59562 жыл бұрын
Joe this is an absolutely brilliant method! That bit about putting the test indicator on the ass end of the boring bar..... That's just great!
@markfulmer85014 жыл бұрын
Hi Joe - your use of the split thread for clarity purposes is a great teaching aid . Keep the great videos a coming ! thannks for taking the time to do this
@joepie2214 жыл бұрын
I had it laying around. You should have seen me indicating it in.
@PatrickJDaley2 жыл бұрын
Yes, great video! I laugh every time you say "unloosen"😁 I enjoy and learn something every time I watch your channel. Keep sharing the knowledge!
@bcbloc024 жыл бұрын
I have in the past done it strictly visual by adjusting as the tool rubs in one point. Using the dial indicator to split the difference is a good idea.
@charruauno3864 жыл бұрын
Thank you for showing Joe. The say, that when you stop learning you are done, well, following you and your videos I can categorically say I will never stop learning, THANK YOU FROM MD AND HAVE A GOOD DAY.
@joepie2214 жыл бұрын
Thanks for the comment.
@neillickfold4 жыл бұрын
When I was an apprentice, I was shown this technique, but used the compound slide to find the centre of the groove. The indicator was looking at the compound movement. It is also the same technique for an outside thread to be picked up. The only difference was that after the lathe engagement and had checked the thread pitch , the chuck was hand turned in the direction of the thread cut. This made sure there was no backlash in the gear train. Also lock the carriage so it is stable in position. Great post Joe as always.
@carlpenney9014 жыл бұрын
I learn something new every time I watch your videos.
@robertos41724 жыл бұрын
A clever machinist, with lots of actual experience, willing to share his techniques. Many thanks.
@joepie2214 жыл бұрын
thanks.
@vk6xre4 жыл бұрын
Hey Joe, I love your videos. They are an example of logical problem solving and lateral thinking. Thank you for sharing your knowledge and experience.
@joepie2214 жыл бұрын
Thanks for watching.
@matteodegennaro74412 жыл бұрын
IT is over 50 years that I have operating many type of engine lathes ,Turret lathes and CNC lathe . I never new how to pick up an inside thread. Thanks a lot i really appreciate this video. Thanks Thanks again and again.
@jasen9634 жыл бұрын
Best teacher ever, I’m always learning new things on this channel. Big thank you Joe your the best 👍🏻
@joepie2214 жыл бұрын
Thank you.
@tansit23444 жыл бұрын
Last time I chased a thread was using standard Aloris holders and an insert bar. I used the compound to feel either side of the thread and noted the travel and backlash. Bounced back and forth until I found the root and backed off a few thou. Make sure you have all the backlash loaded in the correct direction on everything! Especially the half nut. Joe I like the use of the indicator. I was running more seat of the pants to chase a very large UNS optical thread.
@mackk1234 жыл бұрын
I learned how to do threading from your vids. Made my first thread yesterday but I forgot to put it in reverse and made a pristine left handed thread hahaha live and learn. You r a genius man. Thank you
@jasonjoens2794 жыл бұрын
Been there!
@tonyray42034 жыл бұрын
Well done, your are ready to progress to gear cutting, I made a lovely 36 1/2 tooth wheel - once !
@EverettsWorkshop4 жыл бұрын
Thanks for sharing this idea, thankfully I have not had to pick up internal threads yet but have picked up on a number of external ones. I really like your idea for threading with the spindle in reverse and am now looking for a reverse threading bar to the one I have. Thank you for sharing your tips and tricks, it is very much appreciated as you have some cool ways pf doing things!
@joepie2214 жыл бұрын
Thanks. I love a good challenge and a shop is usually full of them.
@Gottenhimfella3 жыл бұрын
You don't need a reverse handed threading tool, in fact it won't work, even with the lathe running backwards. In the same way that a LH nut will not run onto a RH thread, even if you turn it around. Just turn the conventional RH threading tool you have upside down, or leave it right way up but at the far side of the hole, like Joe does.
@tedfarwell98124 жыл бұрын
Awesome technique, as always, Joe! Thanks for posting. The concept of threading away from the chuck is just brilliant. So simple, why hasn’t it been done like this forever?
@shirothehero06094 жыл бұрын
It's funny when you see this for the first time you go -"duh! Now I don't have to be a ninja with the half nut!" I started to use it all the time because my lathe has a metric leadscrew and no threading dial. Makes the whole stop-out-reverse-in-forward thing sooooo much easier for when you can't unlock the half nut during threading.
@Gottenhimfella3 жыл бұрын
Actually, some turners were doing this in the first half of the last century.
@paulcarre47194 жыл бұрын
Another great tip Joe - I had moved the tool but had not thaught to use the indicator to find the center - so simple, Thanks
@EDesigns_FL4 жыл бұрын
Me to: using an DTI never occurred to me either;-)
@joepie2214 жыл бұрын
Thanks. Using the compound could easily lie to you or chip your tool. The indicator gets you much , much closer.
@Awegner1764 жыл бұрын
Joe, I wish I saw this video yesterday as I was cutting a 1-7/8 x 6 spindle adapter. One of the threads got buggered up near my undercut and I had a seriously hard time picking the thread back up to finish the job. Now I know for next time! Thank you as always for what you do for us novices.
@rickbowen69294 жыл бұрын
Another good video Joe!.... One caveat might be, for novice machinist, is to not forget that the job came in as a repair, meaning that the threads will be mashed, rolled over, gouged, etc, so their start number of .020" in this video case, needs to be sneaked up on to avoid chipping a tool on the damaged spots. Well done !
@jimmilne197 ай бұрын
Your instructional videos have made me a much better machinist. I am so thankful for your material and your friendly presentations. I live in a remote location in Greenland and access to your videos gives me access to the best teaching anywhere, yours! Thank you, thank you.
@joepie2217 ай бұрын
Thank you very much for the comment. Very much appreciated.
@453421abcdefg12345 Жыл бұрын
Joe Pie you are a genius! That is a technique to remember, also cutting out away from the chuck, good solid advice! Many Thanks Chris B.
@joepie221 Жыл бұрын
Thanks. Glad it was helpful!
@eastcoastandy29054 жыл бұрын
Good solid solution to an awkward problem. Thanks Joe, I'm still learning!
@DudleyToolwright4 жыл бұрын
Another great Pieczynski original. Fantastic. Thanks for sharing your wealth of knowledge.
@sanjaysami43153 жыл бұрын
Fabulous video. Beautifully shot with great camera angles. Thank you very much !
@drickard674 жыл бұрын
Fantastic! That is one job that has always caused me the most grief... Thanks! The boring\threading bar jig is outstanding...one holder and all bar sizes on center.... amazing.
@RJMachine624 жыл бұрын
Wow, you just made your own "Half Nut" LOL I always enjoy your videos. Keep up the good work!
@CJ_LEGAN4 жыл бұрын
Thanks Mr. 3.14 for all your video tips. This is one of my favorites!! CJ
@joepie2214 жыл бұрын
thanks for watching. Much appreciated.
@michaelhompus24752 ай бұрын
The Arachnid on your whiteboard looks more like an Formicidae... Anyway, this is another of your videos that I liked very much. Your way of explaining of what and why you are doing things is something that makes me follow your channel. Being an amateur machinist with an engineering background, I learn something new by watching your videos. Regards from the Nethrlands.
@darcyrichardson41664 жыл бұрын
Joe, where the hell were you 40 years ago when I started Machining?? If I ever get to Austin someday, I want to shake your Hand. you are awesome. Keep it coming.
@chrisd-gd6no4 жыл бұрын
another great video Joe! Thanks.... i have learned a hell of alot watching your videos !! You are a true craftsman!
@davidschwartz51274 жыл бұрын
Nice procedure Joe, I wrote to you last winter about a similar situation, I was into during restoration on a very old screw jack that had broken on my Grandfather when a wood wheel came off the axle on a fully loaded hay wagon being pulled horse team on the way back to the barn it was sometime in the mid-s20. My father always told the story about Papa pulling the broken jack out from under the wagon mad as hell and walk over to huge gully and toss it as far as he could. The jack was rediscovered in the early s70s when the farm was being developed into an apartment complex by an excavator operator that was good friends with my father. I guess since it was buried deeply in a clay swamp it was preserved fairly well. That's when I first heard the story about the jack, my dad was about ten years old at the time it happened. My dad hung onto that broken old jack for the rest of his life and it was passed on to me with the request to get it working again. I did, but it's only an ornamental piece now. I could have done a much better job had I saw your video first. My sister has it hanging on a wall in her family room now along with many other artifacts from our family. Thanks!
@joepie2214 жыл бұрын
Love it.
@andreturnbull12594 жыл бұрын
Excellent! I learned a lot. Great training aid, it makes it very easy to understand what is happening (out of normal sight).
@aeroscottmodelenginerepair28304 жыл бұрын
Hey Joe, thank you so much for your efforts and planing to present relevant and purposeful video content to our machinist community. BTW, please start a senior division for your maze challenge for the 2020 Summer Bash, no prizes needed, just bragging rites for us old machinists.
@bcwrangler4 жыл бұрын
Learning lots from your videos Joe...Thank You
@HaraldFinster4 жыл бұрын
Incredibly clear and instructive! Thanks a lot Joe!
@ianskeldon60323 жыл бұрын
I have to agree with Keith Monarch, this is a great video, you done it again Joe.
@joepie2213 жыл бұрын
Thanks.
@creast564 жыл бұрын
Joe, this has been a godsend for me. Threading in reverse is a revelation making it so easy to work to a dead stop or should I say from a dead stop. Brilliant! I just did an internal thread only 1.5 mm deep and 0.5mm pitch!
@joepie2214 жыл бұрын
Good to hear. You'll never go back to the old way.
@bpark100014 жыл бұрын
Are you doing this on lathe with metric screw?
@creast564 жыл бұрын
@@bpark10001 In truth it was a custom thread of 7mm dia but 50 tpi. This meant I could engage the half but using the timing dial on my imperial Myford.
@ttabbal4 жыл бұрын
Great trick! Thanks Joe! I also like the boring/threading bar holder and adapters. I am going to have to make some of those.
@scottpace87944 ай бұрын
One of my most valuable go to tools is joe pie videos ! Great stuff thenks !
@scottrousseau297 Жыл бұрын
Great video. Love the cut away and in depth explanation! Subscription added!!
@joepie221 Жыл бұрын
Glad you liked it! Thanks for the sub.
@user-zx8iy8lq6m3 ай бұрын
Fantastic technique and perfect explanation. Thank you for sharing your expertise and knowledge with us!
@joepie2213 ай бұрын
Glad it was helpful!
@bruceanderson94614 жыл бұрын
Great tutorial! Never would of thought to cut the piece in half to demonstrate.👌👍
@briangough304 жыл бұрын
Great video, as usual. Always something new to learn.
@hardyjohnson23224 жыл бұрын
Great solution as always. Well presented. Thanks for everything you do. I've learned an awful lot from you over the years - many thanks!
@joepie2214 жыл бұрын
I'm happy to pass it along.
@johnsavoy47844 жыл бұрын
Excellent demonstration, I was impressed by the floating collet,so simple but very effective,
@joepie2214 жыл бұрын
That takes the tool chip potential out, and eliminates the tip flat difference issue.
@maxcnc7774 жыл бұрын
Good stuff Joe. The half part was great for the visual. I've had to do this a few times... more so with od threading. I once had to pick up a 10-32 thread on the cnc to thread mill it a little larger when it shrunk with heat treating. Basically used the same principle as you have described here.
@RGSABloke4 жыл бұрын
When you said 'un-loosen', I nearly wet my pants. Love it, great info as always. Kindest regards. Joe.
@jasonjoens2794 жыл бұрын
Thanks for the lesson, Joe!
@jamiebuckley17694 жыл бұрын
that was brilliant joe. thanks for showing how to pick up an internal thread. you are an arsenal of very usefull machining information and totally love your channel. thumbs up bigtime.
@joepie2214 жыл бұрын
47 years of scratching my head made me very creative. Thanks.
@ronwilken52193 жыл бұрын
Explains the balding spots. Good video Joe. Thanks from most of us.
@joandar14 жыл бұрын
Great Technique as well as video Joe Thanks heaps for this along with all your other tutorials. This is not something I have encountered as yet however I am aware now of a sound and accurate process to do this. Many thanks Joe from John, Australia.
@bhartwigutube4 жыл бұрын
Awesome as always Joe!
@ddcd534 жыл бұрын
Great video as usual. Good content and info and camera work. I never stop learning from you. Thanks for sharing with us. Dan
@brucebellows77724 жыл бұрын
Another excellent video Joe. For demonstration purposes a strobe light is a very handy tool for viewing rotating elements.
@paulbade1312 жыл бұрын
Genius Joe, Thank you very much!
@kimber19583 жыл бұрын
Thanks Joe. Always very helpful
@Amaysing794 жыл бұрын
Thank you very much Joe. You are one smart man I love you videos.
@-Honeybee2 жыл бұрын
That's a pretty clever solution. I like the use of the indicator to pick up that blind measurement for getting centered.
@joepie2212 жыл бұрын
It will get you very close if all preceding steps have cooperated.
@samcoote96534 жыл бұрын
Thankyou as always Joe! Great video!
@brianday64334 жыл бұрын
Engine Lathes are easy. I was doing this 30 years ago. I just came up with a new process two days ago on a CNC lathe without a compound. 3 5/8-12 ID thread repair on a 10' long telescoping tube. I picked a position behind the Chuck to make a timing mark on the Head Stock and Mounting Ring. I used a small amount of JB Weld to cover a small spot of about the first 4 thread. After setting Z0 at the end of the tube I checked the timing marks then moved the threading bar to the center of the first full thread. Marked down Z-.175" I set program to start at Z+.100". Run first pass and stopped. Checked the marks over the JB Weld. Looked Good. Run the Program to end. Needed minor adjustment to X diameter and about 0.004" to Z. Ran 10 tubes before quitting time.
@jeffpitzer85214 жыл бұрын
More Joe Pie amazing wisdom! Thanks for sharing...
@grahameblankley38134 жыл бұрын
Hi Joe Excellent video again, I used to work in a Ballscrew factory in Coventry 🇬🇧,1980 to 2005 and nobody cut threads weather it was a ball track or threads the way you do, I now do it your way, thinking about it your way would have helped a lot!
@timmer9lives4 жыл бұрын
Very cool and exacting method of picking up the threads after a screw up when threading. I’m a total novice but just recently was trying to make a spindle nut protector for L-00 spindle on my old Clausing 5900 lathe in which I’m adding a lever collet closer . Anyway I screwed up midway cutting the external 3.5” x6tpi thread. I spent about 30 minutes thinking about how I save the mostly finished nut I was making and did a lot of what was described in this video. I love the the indicator because I just eyeballed my repositioning of the boring bar. This was very cool. Thanks again. I really like your videos Joe. They almost always hit home as very useful.
@larrymatsumoto77304 жыл бұрын
Great video Joe, thanks for the tip can't wait to try it 👍👍
@retromechanicalengineer4 жыл бұрын
Top tip as usual. Thanks Joe.
@billchiasson20194 жыл бұрын
Good tip! Great video! Thanks for sharing the knowledge!.
@keithmonarch4473 жыл бұрын
Joe, in short. What a fantastic idea/video to perform I.D. thread repairs What a great process 😁...
@RaysGarage4 жыл бұрын
Excellent demo Joe!
@joepie2214 жыл бұрын
Hey Ray, Thanks. You guys still Ok with all the fires around ya?
@alexvonbosse50904 жыл бұрын
Excellent information! Thanks for sharing!
@mitchelle054 жыл бұрын
Thanks for sharing your technique sir joe, i was taught to chase thread using compound slide, not very effective.. Great video tutorial.👍
@BOHICAshooter3 жыл бұрын
Just used this method to get a draw bar to take all of the collets, Thanks again for the informative videos.
@joepie2213 жыл бұрын
Glad to help
@seeigecannon3 жыл бұрын
@@joepie221 I just re-watched this video because the new to me lathe also has a collet draw tube that has been dropped. Looking forward to when the VFD gets in so I can try this out myself.
@RagsdaleCreek4 жыл бұрын
Awesome Video JOE Just got in 3 different sizes IL threading tools and inserts. Always had used company threading tools and inserts. Seen it done several different ways . This is the only was I have seen that works 100% for me. Thanks for sharing these younger guys I know will be in the shop first thing trying this. Awesome video as usual Watching in Alabama
@joepie2214 жыл бұрын
Good Luck.
@jamescopeland53583 жыл бұрын
I watched this for the 2nd time now I know what I did wrong. The grammar is fine with this old rascal. Thx Joe
@emptech4 жыл бұрын
Nice video techniques, you are no amateur. Also like the way you used a sectioned piece of work to illustrate the cut. I've known of turning from, how would you say, on the back side with the spindle turning backwards, nothing like threading a blind hole, done it many times, making camera lens adapters, etc. I've always done the threading by "feeling" where the bit was, not by using the dial indicator and splitting the difference to find the center of the thread. Nice work, as usual. Jim
@2lefThumbs4 жыл бұрын
Pro tips as ever, great use of cutaway part👍
@barkleyburker78494 жыл бұрын
great video, thanks I can see this being very useful in my shop..keep the vids coming
@GeoffTV24 жыл бұрын
Just watched two of your videos today and you used the word "unloosen" in both of them. I'm furious! - Love the tips by the way, thank you.
@joepie2214 жыл бұрын
Thats my word.
@richardcranium58394 жыл бұрын
the hardest thing sometimes is to get the part to run true in the chuck. then deal with the baclash in the machine. thanx joe i do like the bar setup with the indicator!!
@alexbarnett85414 жыл бұрын
Nice. Can't wait to give it a try. Thanks
@christurley3914 жыл бұрын
Nice demo Joe thanks.
@RRINTHESHOP4 жыл бұрын
Nice demo. Thanks joe.
@bobkelly24474 жыл бұрын
what a neet idea ! well done sir ! thank you for sharing ! in the future I may well need that ! Bob......
@jimmilne194 жыл бұрын
Joe, I have learned so many techniques from your videos. Very fine educational materials you offer us. Thanks for sharing.
@joepie2214 жыл бұрын
Thanks for the support.
@randomdude17864 жыл бұрын
I hope I never have to use that trick. At the very beginning of this demonstration My only thought was, how's he gonna line this up. very clear demonstration Thanks Joe
@charleskelley16724 жыл бұрын
As usual very well described. The only suggestion that I would make would be to determine the speed that you intend to run the part since on some lathes changing the speed after locating the tool can create a problem concerning location.
@joepie2214 жыл бұрын
I can not speak to all machinery, but the possibility does exist.
@Robonthemoor4 жыл бұрын
Great tip with the indicator sir Joe,, I like the reverse threading too, the bushing is a bonus tip never thought of that👍 keep em coming.
@ChrisB2574 жыл бұрын
Great demo Joe, thanks. Tend to wonder if backlash is catered for satisfactorily.
@fzapp4 жыл бұрын
VERY well done Joe! Great demo and explanation on a useful task!
@bostedtap83994 жыл бұрын
Excellent tip, I would never had thought of that technique. I have only just purchased some interchangeable boring bar holder's, after using a standard square shank holder for umpteen years. Thanks for sharing and best regards from the UK.
@krazziee20004 жыл бұрын
very slick.. nice work..
@chrismate28054 жыл бұрын
Something to remember, thanks.
@infoanorexic4 жыл бұрын
My very first attempt at picking up a thread was on an internal. It certainly wasn't voluntary! Thankfully, it was on a large bore, 5 tpi, and near the beginning of that operation, so it was a little easier to absorb any differences in how the tool bit was set. That slip was the first of several that convinced me that the old original lantern tool post could not be trusted. There are "turret" tool posts, I started calling this one my "tourette's" tool post, as it became the cause of several sudden outbursts of profanity ...
@outsidescrewball4 жыл бұрын
awesome lesson and now another build project for the list....atb
@joepie2214 жыл бұрын
Hi Chuck. Thanks for stopping by. Hope all is well.
@mariocortes13373 жыл бұрын
Yes I'm agree with you. Thanks
@TheFatblob254 жыл бұрын
I was wondering about your boring tool holder from previous videos. Nice design!
@mrtomsr4 жыл бұрын
Excellent idea. My old Southbend 9A might have an issue running backwards as that could unscrew the Chuck. I will give it a try with real light cuts. Thank you.
@michaellitzkow81234 жыл бұрын
Maybe you can fit a long bolt inside the chuck running through the spindle. Then lock it with a fender washer and nut on the outside end of the spindle. I have not tried this yet, but I have the same issue with my Craftsman lathe. The threaded spindle has no protection for reverse turning. Theoretically, it would be best to use a bolt with a left hand thread. My reversible drill has a chuck that screws on to the right with a left handed bolt in the center that screws back into the spindle. It stays tight under power in either direction.
@bobboldman11894 жыл бұрын
Thanks Joe for another great demonstration. I haven't had the opportunity in my few years working a lathe to repair internal threads, I will definitely play with your procedure for the fun of it; who knows when a job comes up when needed. I so look forward to your instructions. Bob from Arlington, Washington State
@Miseries_Company4 жыл бұрын
Havent ran into this yet, but when it does it's in my tool box.
@MPSingh-yp1gl4 жыл бұрын
My heartiest salutes to you for the most innovative and out-of-book solutions to such unusual challenges. I have learnt a lot from your videos (just like many others! ) and someday I hope to meet you and hold your hand to say Thanks. By the way I have doubts that this technique may not hold good for 26 TPI or finer threads, but hope you may come with some genious solution for that too!
@millwrightrick14 жыл бұрын
When cutting threads smaller than 26TPI, I imagine you are using a tap and the same basic technique will work. Leave the tailstock loose so the tap will pull in by itself.
@MPSingh-yp1gl4 жыл бұрын
@@millwrightrick1 Thanks Richard, yeah it's true! I guess I was over-thinking on the single point inserts, and forgot the taps.