I've been running a mill and a lathe for about 40 years and can do setups in my sleep (not really), but explaining what and how to do it like Mr. Rucker can is an art unto itself. I know I couldn't do it, kudos to a good teacher!
@MorseB
2 жыл бұрын
Thanks for showing all the knobs and levers at the beginning. Not all of us know how all these levers and knobs work.
@1903A3shooter
2 жыл бұрын
THAT Monarch lathe is a Sweet Heart.
@july8xx
2 жыл бұрын
When making a non-standard thread I always make the nut first. It is a lot easier to test the fit using the nut than trying to test the internal thread using the shaft. Also using standard thread with an easily obtainable nut would make it easier for later repairs if necessary. But I must add this was a fantastic tutorial on thread cutting.
@ruidh
2 жыл бұрын
In his last video, Keith said he didn't have the correct stock for the nut.
@ellieprice363
2 жыл бұрын
I agree. He should have made the nut first, especially since it’s non standard left hand to be fitted to the long heavy shaft. It will be interesting to see how he does that. I’m guessing he’ll need to machine a short shaft with L.H. threads to use as a thread gage.
@stxrynn
2 жыл бұрын
Brilliant. I'm putting that tip in the mental toolbox. Thank you.
@daleburrell6273
2 жыл бұрын
...that's the TRUTH-!!!
@clayz1
2 жыл бұрын
@@ellieprice363 Yes, a short thread gage for the nut. Now you can make a spec nut. But the shaft will be in spec too because it gets measured directly. So no need for the nut except for the satisfaction of screwing it on. Unless you want a nut that has minimum clearance (like a thou or two instead of .003/.007 probably, just guessing). A tight custom fit is nice.
@jbergenudd
2 жыл бұрын
A master class in left hand threading!
@tiredoldmechanic1791
2 жыл бұрын
Double Boost does left hand threading without even trying to.😁
@ellieprice363
2 жыл бұрын
I saw that funny video. He cut LH internal threads in a big aluminum shaft two different ways thinking they were RH.
@Farm_fab
2 жыл бұрын
I bought an Asian made mill/drill, and I'm patiently waiting for it's arrival. I'll be a beginner at this, so I'll learn by doing.
@HomebrewHorsepower
2 жыл бұрын
Great place to start. That was my first machine too.
@johnyoungquist6540
2 жыл бұрын
Great threading sequence. Most just show the cut when newcomers really need to see the coordinated lever action. Nice job.
@mbruce4152
2 жыл бұрын
Much appreciated lesson, great camera angles! No room for errors, need to bring your A game on this task
@garthbutton699
2 жыл бұрын
Thanks for allowing us to look over your shoulder Happy New Year🤗😎🤗😎
@misterdeedeedee
2 жыл бұрын
that 0 stop is a great feature, i wish my machine had one for sure
@dcobel60
2 жыл бұрын
Great lesson in threading Keith, when this is project is completed and time goes by (40-50 years) and were not around to warn the next person that takes this machine apart,...would it be appropriate to stamp LH on the end of the shaft?
@foxwood67
2 жыл бұрын
Couldnt agree more. Had that been done originally it would have saved Keith a bunch of time and work.
@dennisleadbetter7721
2 жыл бұрын
Left handed nuts usually have a groove cut in them do indicate that, just look at your oxy set, fuel gas is left handed. I have seen mechanics tricked by left handed threads on wheel nuts on left side of trucks.
@ThAtGuY-u9d
2 жыл бұрын
Definitely easier for everyone to label it. However I always try to check the angle of the threads when dissembling rotating parts if there is one thread you can see. Down to left or right. Has saved me before,lol.
@millomweb
2 жыл бұрын
@@dennisleadbetter7721 It would be different if all vehicles were the same. It doesn't help that they're not !
@millomweb
2 жыл бұрын
@@ThAtGuY-u9d If all nuts were undone by engineers, not such a problem. If turning a nut doesn't loosen it but tightens it, it's a sure sign of a left hand thread. You just need a sensitive enough feel to detect that.
@talegunner115
2 жыл бұрын
Even though I don't own a metal lathe or have the knowledge how to set them up, I love watching your work Keith.
@93Martin
2 жыл бұрын
I recently watched a video you made of doing a left handed thread at the museum for a blacksmith drill of sorts
@millomweb
2 жыл бұрын
A lot of video effort in this one - different camera angles and good explanations of what you were doing :)
@Hoaxer51
2 жыл бұрын
Thanks Keith for the left hand threading lesson, excellent job as always. I really enjoyed all the different camera angles, that really helps in understanding all the steps and what you’re actually doing with your hands during those steps. This video would be a great primer for anyone who wants to learn cutting threads, either left hand or right hand threads. Thanks for leaving in the part where your halfnut doesn’t engage perfectly, I was just wondering what you’d do if it didn’t engage right. So thanks for leaving that in. Wishing you and yours and everyone else a Happy New Years!
@halfnelson6115
2 жыл бұрын
Great explanation of the lathe settings. I'd like to see more of that type of thing on other machines. Thank you.
@bernardwill7196
2 жыл бұрын
Happy New Year to you and your family
@tonyschiffiler4816
2 жыл бұрын
Thank you Keith , good teacher!
@JT-tz5hp
2 жыл бұрын
Thanks for the lesson Keith!
@19672701
2 жыл бұрын
Always like threading on the lathe.Jimmy should have a great saw when done. HappyNewYear!
@ksingleton101
2 жыл бұрын
Happy New Year, Everyone!
@catfishgray3696
2 жыл бұрын
HAPPY NEW YEAR, PET OR TELL EVERYBODY HELLO, SEE YOU ALL NEXT YEAR...
@tommybewick
2 жыл бұрын
I love the color of that lathe, classic!
@tomcarlson3244
2 жыл бұрын
Myself being completely ignorant on machining I appreciate seeing how it is done, thank you
@bcbloc02
2 жыл бұрын
Another job knocked out!
@UCanDoIt2Mike
2 жыл бұрын
Excellent job on this overview. The explanations and camera angles are fantastic!!!
@scottpecora371
2 жыл бұрын
Thanks for taking the time from your busy life to share this knowledge with the rest of us. Oh where were you when I was taking the first year of college machine shop. I've learned so much more from you, Keith F, Adam, Brian, Dave R, at old time steam, and Curtis with Cutting Edge Machinery in Australia, and his dog Homey, and so many more.
@richardklein6720
2 жыл бұрын
Great job explaining the process, thanks
@tomeasley5979
2 жыл бұрын
Keith, this has been an awesome series of lessons! Greatly appreciated. Thanks for being a great instructor!
@ponga782
2 жыл бұрын
Nice job.. I bought a 9"A benctop and I love it! I am also working on decruding an early 40's 16" tool room South Bend. I can't wait to get it all cleaned up and back in service.
@paulcooper2897
2 жыл бұрын
Engaging video! Happy New Year! Thanks for sharing 🇨🇦
@elsdp-4560
2 жыл бұрын
Thank you for sharing. Thank you for showing the step by step on cutting left-hand threads, watched and as always enjoyed it. Keep up your dedication to your KZitem channel have learned and enjoyed your channel for many years. Gary👍
@cynicbeliever40
2 жыл бұрын
Thanks for the tutorial Keith!
@JB-kw4ug
2 жыл бұрын
Great video as always, thanks JB San Diego
@jcs6347
2 жыл бұрын
Thanks Keith!
@WilliamTMusil
2 жыл бұрын
Hiya Keith
@myharris
2 жыл бұрын
Much the best tutorial on thread-cutting I've seen yet. The thread dial was the missing link for me personally - no-one seems to cover this. Simple and obvious when you know how, but baffling for a beginner to hear people refer to a 'dial' and a 'number' without ever putting it in context or showing you what they're talking about. I now feel confident enough to actually try it myself - thank you!
@rebelyank6361
2 жыл бұрын
I was confused by that as well. Finally understand now.
@philipmackin1025
2 жыл бұрын
Check Abom79 @ kzitem.info he shows how this is done.
@rebelyank6361
2 жыл бұрын
@@philipmackin1025 Thank you, I will.
@jkanclark
2 жыл бұрын
One can almost imaging J.D. watching these videos with rapt interest.
@brianatbtacprod1989
2 жыл бұрын
Are you considering stamping either the nut, or the end of the shaft, or both with an LH so the next person knows which way to take the nut off?
@benpress8884
2 жыл бұрын
This whole series has been fascinating so far. Hope to see another major restoration like this soon.
@erneststorch9844
2 жыл бұрын
In high school we feed on the cross side only. The problem with that as you said you're cutting on both sides of the tool and you have twice as much surface touching. It doesn't cut as smooth and your much more likely to chatter. It wasn't till I was out of school I learned the method you used. My machiest hand book has a chart that shows both the cross feed number and for the compound method. The common thread pitch gage has the double depth number for the cross feed depth. There is a formula for converting that number for the compound method. I like to use the nut that is going to be used but you didn't have that. Another way to check is by using thread wires but are tricky to hold properly. Your thread is the way to go. Very nice job the way. In high school all our lathes had quick change gear boxes so I got spoiled from the start. Change gears will do just as good a job but the time get them setup . And you have a stack of gears to put away somewhere.
@migueltorres6073
Жыл бұрын
That was very helpful. I will try it for fun.
@willydoitbettydont9100
2 жыл бұрын
Pitch dia. for 1 1/4-10 2a fit is 1.184max to1.177min rounded up which i do to be safe in tolerance. Since you are making the nut and it is not standard going to the other shaft and getting your measurement works too. Have to agree with others that the nut should have come first. To each their own and it will workout either way.
@fredclark4033
2 жыл бұрын
Thanks for explaining the correct way to cut left hand threads.
@johncloar1692
2 жыл бұрын
Thanks for Sharing...
@alfiversen7023
2 жыл бұрын
Happy new year! I find this channel to be inspiering and interesting even though I am a wood worker by trade. Good craftsmanship is universal. Someone would benefit from being your - apprentice.
@tinkmarshino
2 жыл бұрын
So much fun...
@richardsurber8226
2 жыл бұрын
I may not ever do this operation, I'm over 50 years of age, but I appreciate all that talk/instruction
@nate6200
2 жыл бұрын
You know, ABOM uses a radiused cutter for the thread root clearance cut... JK.. great video!!
@Pamudder
2 жыл бұрын
Thank you for your wonderful instruction! Happy New Year!
@johnjohn-ed9qt
2 жыл бұрын
Quite a nice introduction. The debate about 30deg, 29.6deg, or straight in goes on and on. The best argument I have heard for 29.5 over 30 is that it insures both thread flanks are smooth in a world with inevitable errors in the tool angle, compound angle, tool setup, and so on. A few minutes here and there should be less than the 0.5 degree. The internal stop for threading is so nice. I miss my old lathe that had it (Pacemaker), so I made a drawscrew type for my current lathe (better than the clamp type that grabs the cross slide ways, in my opinion)
@mrsock3380
2 жыл бұрын
It doesn't go on in the machine shops I have worked in, never seen anyone angle the compound to cut a thread besides on KZitem, at trade school the teacher told us about it but never did it. You can work out the ratio to move the compound to keep it cutting on one side or after a few hundred threads you just wing it like every machinist I know does. The reasons I don't angle the compound is that you can't just work out the depth and go straight to it, for large threads you can't clean up both sides and if you're using the compound for widths or lengths you would have to move the compound every job. For a hobbyist it isn't even something to argue about, the end result is the only thing that matters, not efficiency, so whatever works for you.
@tropifiori
2 жыл бұрын
Keith That was very helpful. I will try it for fun. The image quality and lighting in the video is excellent Happy New Year. Frank
@varmint243davev7
2 жыл бұрын
Thank You !
@AmateurRedneckWorkshop
2 жыл бұрын
Great job of threading. I think I would have made the nut first though. Thanks for the video.
@toolbox-gua
2 жыл бұрын
My Xmax present. Great video.
@dans_Learning_Curve
2 жыл бұрын
Great teaching video! Gave instructions for the person who's never cut a thread before, but threw in a couple of nuggets for the more experienced people!
@adamstripp39
2 жыл бұрын
Happy new year from Canada
@mikelamuraglia5645
2 жыл бұрын
Help's me understand more Thank you
@ts7113
2 жыл бұрын
Why use a cut-off tool to clean up the shoulder? Does't the sharp corner make a weak spot? Wouldn't it be better to use some kind of radius to clean up the shoulder and blend it in? Just curious. Thanks for all the great videos!!
@mbbmidwest3556
2 жыл бұрын
If the thread relief was in the middle of a shaft, (like a bearing nut) then maybe. But in this case there is no reversal loads on the shaft at that point to cause a fatigue issue. One other thing to note, insert parting tools do have a small radius at the corners so it's not a dead sharp corner.
@outbackladas
2 жыл бұрын
I was thinking the same thing myself about the need for a radius behind the thread, but I guess your reasoning about the stress near the end of the shaft would be correct .Regards from Down Under.
@theQdomain
2 жыл бұрын
Great video. It brought me back to the mid 1980’s when I used to have an old 21” Monarch. The most stressful work that I did on that lathe was doing 3-1/2 inch internal Acme thread at 4 threads per inch. You really have to watch carefully then disengage the screw, and move the carriage forward a couple of turns simultaneously. All very nerve racking at the speed needed to get good results in aluminum. I don’t miss that much but enjoy seeing you working and explaining to us how and why you are doing it. Thanks.
@johncoops6897
2 жыл бұрын
There is no stress if you cut it "backwards" >> so you are cutting away from the chuck.
@bobvines00
2 жыл бұрын
Keith, I think that I agree with several other commenters about marking the end of this thread as "LH" or similar. However, I _really_ wish that you had modified that cutoff tool to have had (honed) radii to avoid leaving stress risers in the new shaft for future owners to deal with. I'm certain that such a tool would come in handy in future jobs in your shop!
@pipereed1
2 жыл бұрын
Thanks Keith for another very informative video. Hope you had a great Christmas, and from mine to yours and all your watchers and subscribers, a very, happy, safe and prosperous 2022. J.C Liverpool, UK
@darkhorsegarage9623
2 жыл бұрын
So I had a crazy dream last night. I dreamt you cut it a right hand thread and then drilled the nut and put in a roll pin. 😵💫
@rerun578
2 жыл бұрын
There's more than one way to skin a cat - if you'll excuse the expression.
@Kevinardo
2 жыл бұрын
I really appreciate how good of a problem solver Keith is. I feel like I learn as much about metal turning as I do how to think through out a challenge.
@chibanix1347
2 жыл бұрын
always a pleasure to watch you working
@stevedunford7632
Жыл бұрын
I was taught to do the undercut first leaving it 5 thou over core/root diameter. Then you can keep cutting until you just witness onto the undercut then do your measurements and final fine cuts. Afterward go back and take the undercut a little under core/root.
@tomnugent845
2 жыл бұрын
Keith, this is one of my favorite videos of yours! Threading thoroughly explained with great camera work. Have a great 2022. Best wishes to you and all your family.
@SFarling
2 жыл бұрын
Great video!
@mikenixon9164
2 жыл бұрын
Why didn;t you make nut first to test fit? Good video on threading.
@jonlong4866
2 жыл бұрын
Great video. Happy & Healthy New Year Keith.
@casycasy5199
2 жыл бұрын
great detail .thanks
@blipys
2 жыл бұрын
thank you Keith. really great to see that Rucker-restored Model K in action
@andywithers592
2 жыл бұрын
Another interesting and informative production. Happy new year everyone from Switzerland.
@zvonibab
2 жыл бұрын
Happy New Year Mr Rucker
@atcguy77
2 жыл бұрын
Thanks for the details, Keith. I'm new at learning to use a metal lathe (a cheap, little-bitty hobbyist bench lathe, but a lathe none the less) and this helps me understand it tremendously. Keep up the good work.
@robertburns2415
2 жыл бұрын
I work in a small machine shop where I have to make unconventional threads on a regular basis. I usually start with a male reference thread. Then I make the female thread first using the reference thread as a guide. Then it's easy to reproduce the second male thread and be assured that it will fit without testing. The reference plugs, I hesitate to use the word master because of the inspector, are labeled by outside diameter, number of threads per inch and the pitch diameter to put away future reference. There is nothing wrong with your method. I just find it when you make a lot of oddball threads it's more efficient.
@tammowallinga5826
2 жыл бұрын
A really good instructive video with all the different camera standpoints. Thanks for the great work!
@StevenEverett7
2 жыл бұрын
Hi Kieth. I just found your channel a short time ago. I know nothing about what you do but I've found this subject both educational and entertaining. I subscribed and am looking forward to new videos as well as checking out your older stuff.
@deanehill9730
2 жыл бұрын
Well explained video on left hand thread cutting. Thanks for the video.
@5x535
2 жыл бұрын
I really appreciate the extra time and explanation while you created these threads Keith. Thank you.
@mattomon1045
2 жыл бұрын
Mr Rucker Happy new year
@jimfiorentino7741
2 жыл бұрын
Mesmerizing. If I had it to do all over again, I might have been a machinist. Keep up the good work Keith. Haven't seen anything at the museum lately. Soon?
@MartinInAmsterdam
2 жыл бұрын
Personally I would always make a proper radius undercut and not a sharp transition, for fatigue reasons.
@dennisleadbetter7721
2 жыл бұрын
Hi Keith, The reason for the angle to set the compound just slightly less than half the angle of the thread is so the non cutting edge cleans up that face. If you set the angle marginally greater than half the thread angle, it technically produces a stepped face to that face. Also that angle is not always 29.5 degrees, that is only applicable to threads that have a 60 degree thread angle, if you have a whitworth thread where the included angle is 55 degrees, you would use approx 27 degrees and for Acme and trapizoida threads around 14 degrees. Box threads having 90 degrees, you feed in straight, and normally have the compound set at 90 degrees to cross slide so you can use the compound to open the width of the cut up slightly if necessary. You can also turn right handed threads from the shoulder out by setting the tool either to the rear of the workpiece OR upside down in front of the workpiede and turning the lathe backwards, and naturally changing the feed direction to left to right for either. Happy new year! Regards Dennis
@johncoops6897
2 жыл бұрын
I really don't understand why machinists almost always cut towards the chuck on RH threads. I realise that the lathe is kind of configured for that to be easiest, however in many instances it's a very stressful situation.
@guubagaaba8391
2 жыл бұрын
happy new year , looking forward to a bunch of new stuff !!!!! glad you are feeling better !!!!!!!!!!!!!!
@roylucas4414
2 жыл бұрын
Thank you for a year of interesting videos. I look forward to the 2022 video's. Health, wealth and enjoyment to you and yours.
@garrockwaters304
2 жыл бұрын
Thank you for taking out some of the mystery of single-point left threading! I love that lathe!
@bisonuberti
2 жыл бұрын
Happy New Year Keith
@mikebaldwin9972
2 жыл бұрын
Thank you Sir for all you do,HAPPY NEW YEAR to you and yours from me and mine..💐💐
@mikecabe6127
2 жыл бұрын
Keith, thanks for another great video!! It good to see a threading lesson simple but right to the point.
@foxwood67
2 жыл бұрын
Excellent explanation and camera work
@michaelprice5090
2 жыл бұрын
As always great job Keith. Very informative, I always learn something watching your videos.
@davidsellars646
2 жыл бұрын
Appreciated the detailed explanation on how to setup the lathe.
@patrickdavey9692
2 жыл бұрын
Happy New Year!
@barrycaudle9926
2 жыл бұрын
Hi Keith, enjoyed your videos on cutting the taper and the left hand thread. I used to work a Holbrook lathe which had advantages over your lathe for both of these jobs. It had a double cross slide. When taper turning the normal cross slide indeed was still available. There was a quick cam out lever so you could thread to a point or shoulder by coordinating the movement of your right and left hands on the cam out lever and the half nut lever.
@terrybush4270
2 жыл бұрын
Very instructive. Nicely done. Thanks for sharing.
@joebledsoe257
2 жыл бұрын
I learned hpw to thread w a feed rate error while turning something in high school machine shop class. The hardest part was realizing to cut on one sie of the thread not plunging headon into the thread. I was way ahead when we had to do the threading project so I made a cannon instead. It would pop off a 410 shotgun shell.
@JJ-jv1gu
2 жыл бұрын
Kool watchin ya work the controls on that M
@truckguy6666
2 жыл бұрын
That lathe is so freakin sweet. That thing is a real heirloom and the condition is phenomenal. What would that thing cost me on the market today?
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