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Swedish Gearbox Shaft Part 3: Metric Threading
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- เผยแพร่เมื่อ 5 ม.ค. 2018
- We do the single point threading on the shaft in the Acra-Turn lathe for the bearing lock nuts. I also have a short discussion on how you can dissenage the half nuts while cutting metric threads and lining it back up properly.
Next episode will be milling the keyways and final look.
You can help support this channel by becoming a Patron. / abom79
That second voice asking about disengagement scared the crap out of me. Sitting home alone with my headphones on recovering from surgery and I thought someone was asking ME. As always, nice work Adam.
I have no idea what you are talking about, there was no second voice. You may want to ask about having your meds adjusted.
@ 11:55
was a joke dude, but thanks.
+Kennnny77 There's no second voice at 11:55...
Haha I must admit it gave me a bit of a surprise too!
Hanging that retainer nut on the tailstock for quick checking is an awesome idea, never would have thought of that!
i thought of it and a few seconds later he pulls it into frame
chris0tube Yep, I probably would have figured it out the first time I had to set the tailstock up again!
This job shows the respect that the company that Adam works for shows him when they trust him not to make a mistake that could cost them thousands of dollars in material and lost time. He is a true professional.
I'm an apprentice, and just learned this same thing after another apprentice was misguided and wiped the threads off an expensive roll. Cheers to you, would love to apprentice under you.
I have no idea what this man is doing most of the time, but I'm addicted to this channel. What attention to detail. What a work-ethic. I love it even though he makes me feel like a lazy slob.
From a watchmaker's point of view, I can appreciate your level of precision. Great job!
My father was a watchmaker for 50 years, he had amazing skills. I learned a lot from him, I took apart a watch, cleaned and oiled it and put it back together and it worked fine. I was 11 years old at the time. I still have the watch. I love watching any craftsman, such as Adam, do their work.
Thanks again enjoyed watching the final steps it was a wonderful project looking forward to the next
Adam , Your heavy machine work does not apply to the most of your veiwers BUT the priciples are the same.
Thank you for sharing your work and expertise with us Once again thank your employers for making it possible.
May you and your family have a great 2018
A F Pienaar
Johannesburg
That was nice AF #niceaf
Hey Adam, Long time watcher and love your channel. I'm not a safety nut, but I wanted to offer you some sincere advice. The way that you are bumping your T-handle on your chuck will cause....or should I say IS causing nerve damage to your hand. the Medial nerve and recurrent branch of the median nerve exit right at the base of the thumb and palm of the hand. Repeated daily impacts like this, which is also common to car mechanics, results in nerve injury. This type of injury, not only will cause sever pain and numbness, but also loss of function and coordination over time. This is often a career-ender. Once this happens it's too late. This is no less serious than safety glasses, ear or lung protection. Again not a worry wort here but someone who has experienced this, not only as a medical professional, but first hand(s) experience....All the best!
I am a 62 year old auto mechanic and I can attest to the truth of this statement. My hands are starting to give me trouble (pain) and I am trying to treat them better. As a friend always tells me, "Your hand is NOT a hammer!!!".
yes true
I have use my hand as a hammer on my life. My hands are huge and tough. But the thumb is useless now.
Every time you center that 4 jaw I am amazed of your skill. I cut metric on my pre-WWII 10" Atlas, lock the half nut and not opening it till finished. I would not trust myself like you do. I'd go over a turn...
Love to watch you working.
It’s easy. Make you a mark to line up on. Disengage and stop the machine. Reverse and engage on the same line.
I Think This Is The Most Beautiful Machined Piece That You Have Made, Chatter Or Not..Your Best Vid To Date !! I Stand And Applaud . No Kidding Man!
Hey Adam,
Even from Holland (Europe) we like your vids verry much.
Excellent way you machined, excellent way you explane the steps.
Thanks.
Greetzzz from Holland
Gertjan
Thanks! Fernando is from Holland.
The metric threading on imperial lead screw info is fantastic, especially with the camera shot right afterward showing the thread dial doing the motions. Thanks.
Enormous relief. I was in a desperate panic that I was going to have go wait another day for this video. I dont think I could bear it.
A machinist AND a teacher? Damn Adam!!
Really enjoy the Swedish Meatball series, thank you very much. The threading was cool, knowing that one misstake would ruin the whole build makes this a thrill to watch.
Perfect timing!, I come upstairs from my little basement shop and two new Abom videos! Thanks Adam!
I love single point threading, nothing more satisfying than cutting a nice custom thread that is spot on~ Richard
Great video Adam!! I think you did an excellent explanation of cutting metric threads with an imperial machine and what you have to do too keep the machine cutting the threads correctly. Awesome work as usual!! God Bless and i pray you have a prosperous 2018!!!
Thanks for taking the time to show the detail of the threading process. I wasn't quite following what you were doing until you showed us the threading dial and when you engaged it (toward the end of the video). Best wishes for an outstanding 2018
New to your channel came over from AvE, my grandpa was machinist, my uncle's machinist, my cousin machinist, my dad built a one city block long building for a machine shop. I'm digging your channel.
Man, you're so frickin' smart. It's a pleasure to watch you work.
Great work Adam, I am truly hooked on your channel, that shaft was a work of art! I haven't done any machining since my apprenticeship back in the early 70's at British Airways and this certainly brings back a lot of fond memories of those days back then. Thanks for all the videos, please keep them coming.
Thank you Adam for another Metric video! Happy New Year! Greetings from Poland 🇵🇱:-)
I would be terrified doing these last few but for me high risk machining operations on a shaft with so much time invested in it. I have to take my hat of to you sir and great skills. I try to do a little machining myself from time to time and I learned so much from you. Thanks for sharing.
This is the first time I’m seeing that you are reversing the machine while threading.
Any way many thanks for all videos.
Feels nice to watch someone else do the work while I take the day off
Im from Sweden so this was nice to see. Nice to see a work made in mm.
Its a pleasure watching someone else take so much pride in their work. I immensely enjoy watching your videos. I joined you at Patreon. It's the least I could do.
Thanks Patrick!
At the phrase "why aren't you disengaging the half nuts when you do that?" I genuinely thought it was Adam making fun doing a whiny voice of that smart-ass kid that would have eventually commented on this video. You caught me off guard.. fantastic work btw!
Yeah, but now you just kinda called the new guy a whiny smart ass kid. It must be someone unfamiliar with lathes though.
it was just the sudden change of voice with a higher pitch one, I obviously have nothing against the new guy or his voice.. it just felt strange..
I thought it was Tom Lipton @oxtoolco at first.
It's a thing of beauty watching you zero out your run-out.
It always amazes me how *delicately* everything must be handled.
The Best Part of any of your videos is you truing up the 4 jaws to less than a half a thousand! ;)
Hi Adam I am glad you are back. I hope you and Abbey had a great vacation.
Bill from Seattle
Thanks for the great video. This made me understand metric threading on a standard lathe and why I've been struggling with the half nut.
Adam, you have a true talent my friend. Great work sir. Happy New Year!
Bull Miller like a bit of ASMR after watching a shaft eh? 😉
Uhhhhh sure? I'm not sure what you just said.
Hi
I like that you demonstrated the exact method I have been using on my mini lathe. Having a reverse makes leaving the half nuts engaged.
I have seen guys do the same with old South Bends by reversing under hand power.
Thanks
Thread cutting continues to amaze me
great, thanks for showing detail, and thanks for not playing background music in the videos
Thank you Adam. I appreciate you considering the requests and comments of your viewers.
Excellent! I feel like I did my apprenticeship in several minutes:)
Nice to see some Swedish parts! I've been working in the big lathes, in Swedish we call then merry go round-lathe, the vertical ones, up to about 3 meter diameter! :-) And i see that you could take care of turning very good! :-)
Great work, and thanks for sharing with us. Greetings from Brazil.
Refreshing to see that everything does not always go as planned. But you came through as always! Nice work :) I have had luck using rubber bungee cords wrapped around the work to help with chatter, probably would need a boatload on something that big. Might be worth a try some time......
Who is the "world's luckiest apprentice?" I'm jealous.
Nice, been looking forward to this :)
I tend to be in the part when you machine and did my wife and I just have a good laugh now because she caught me trying to blow away the smoke when you started the heavy cuts on the thread. Please tell me that someone else also did it. If not then I have a problem. LOL
I never tried to blow away smoke, but I have told Adam many times to watch out... LOL
Adam if you feel a slight breeze behind your neck, it might just be one of your viewers.
A great tutorial, I will remember your lesson on cutting threads, "never loose track when cutting threads". Thank you.
I almost did - does that help any? :-)
T O P Work BRAVO Very Good Precision work
nice to see that you working on real things ;-) /from Sweden
love your work and explanations Adam. . .
Good choice using SKF.
They're my go to choice, for wheel bearings.
I appreciate you admitting to an imperfect thread. It would have been interesting to watch you react when you were saving the shaft. I bet there was a little pucker factor.
A work of art Adam. I noticed AvE has your sticker on his laptop!
Sounds like time for a shop built steady project. :-)
Doubt there will ever be time. I had Acra quote me one years ago for $850.
Great video. Spreading the knowledge
Would making a steady be pissable its thanks to ur channel im a machinist and at my works one if the lathe i use is a Colchester 1600 mascot we have a standard and home made stady for big work i mean big we do hydraulic rods and cylinders like i said its ur fault and mrpetes im here and i love it
great stuff Adam
Awesome Work
A job well done, thanks for sharing it.
Beautiful fit, beautiful work.
Nice job Adam.
Great work Adam 👍
Can you do a video all about cutting threads. Start from how to setup the lathe to tooling needed. Thanks
Nice one! Good movie!
Note how he marked his threading dial with a yellow marker if he were to disengage his lead screw and engage it on that yellow line every time you won't have to put the machine in reverse every time you make a pass to keep it engaged
Very fine work sir. Happy New Year!!
Hi Abom, great videos, I enjoy and learn a lot with your videos, so thanks for sharing your knowledge with all of your viewers.
Normally, I don't comment, I hit the like bottom, because you make it so simple for me to understand.
But, I've one doubt, that I've been searching on the internet, and don't find an answer.
So if you could help me, it would be much appreciated.
At the top of the toolholder there is a metal plate numbered from zero to forty, those numbers aren't degrees, I think they aren't radians, what do they represent, and what do you use them for.
Keep on the great work.
Thanks
I'll bet that was an EXPENSIVE part-!
THANK YOU...for sharing.
Real nice work there
Actually, you could disengage the half-nut, but, in case your lathe's leadscrew is 4TPI, you would need a TDI with a 60T gear (every 60 turns of the leadscrew they resynchronize.)
Sounded like Keith Fenner asked that question! I thought you were doing a fake voice at first. Made me laugh.
Wow that was indicated fast.
Donald McCombs he’s crazy fast. If this were a video of me, the entire 18 minutes would’ve been indicating. Lol
Dozer1642 me too. Hell the mill still pisses me off sometimes.
It is the thing I am most impressed with in every video I see it
You're new to this channel aren't you? :)
Great work man ! enjoyed ..
I think it's a bit risky disengaging like that because you can end up with the insert taking a really big cut if you're a little late and break it off. I think you're better off marking the angular position on the chuck and stopping the machine well before that and then pull it the last bit by hand.
One thing that I don't understand about cutting threads; When you are getting ready for the 2nd pass why isn't it necessary to index the tool to the exact same position radially (clock position) that it started on in the 1st pass? It seem like it would cut new threads every pass. I guess you started answering what I am wondering at 13:30...thanks for all your great vids.
I know I'm late, and I'm definetely a beginner to machining. But, and please correct me if I'm wrong, whenever I have worked on a lathe (in Sweden, so metric), there is no way to use the half nut other than to engate it in the exact same place. The reason is that we don't use threads per mm, but x mm thread pitch. In imperial, the TPI means that the lead screw will match up every so often, but because of how the metric threads are defines, there is no guarantee. Only if that particular lead screw happens to match the thread you are cutting. That is the reason I've also never seen a thread dial on a metric lathe
As I said, please correct me if I'm wrong, I love to learn when I'm incorrect, then I learn something!
Actually, metric lathes have thread dial indicators, too, but, unlike imperial ones, for metric you need at least 3 interchangeable TDIs with different Z on the gears, depending on the leadscrew pitch, and the thread pitch you want to do. The lathe at my workplace has a 4mm pitch leadscrew and a TDI with 6 marks on the face and 3 change gears, with 27, 28 and 30 teeth.
Sns ... I long for it!
SNS will be back next week. 👍🏻
I also look forward to Saturday so I can watch some relaxing yet instructive machine work done by someone with the skill Adam has. Abom79 is my favorite machinist channel by far. I have learned some neat things here.
Question, you set the depth of thread on the cross slide but I noticed you in one shot giving the compound slide a slight movement into the work, I assume to keep cutting on the leading edge of the tool. Now moving the compound also progresses the tool towards the work at Sine of what ever angle it was set at. Do you calculate the total depth of cut as (cross slide + Sine of angle of compound)? Thanks in advance, Ian Mac.
I feed in with the compound each pass. I bring the cross slide back to zero each time.
GREAT VIDEO !!
Adam; you are just going to have to get a better fan, Brent and I cannot be expected to keep blowing all of the smoke away....Hal
There is nothing like the metric system.
I agree. But for those who have learned inches, and used inches a lifetime, metric doesent come easy. By the way - that thread pitch of 3 mm are very closed to 8 1/2 tpi
Yes. Nothing sucks quite like it.
In Spain we use the metric system, I am a refrigeration mechanic and in this profession everything is in inches. It is a real problem, not only for the measurements, but also in tools, tubes and spare parts.
Mind explaining how?
I grew up using both SAE and metric. It is just a language. Are you trying to say one is "better" than the other? Whitworth is clearly superior then....
Love watching you work on the larger parts.Maybe a little less footage of you dialing in chucks?We know you do it right,and your customers obviously trust you!Quick question.....When cutting metric threads on an inch lathe,can't the feednut and dial makes several revs disengaged,as long as you were re-engaging on the yellow dot?Say,you unlocked it,let the lathe/dial run while the slide set idle,as long as the yellow dot was hit when you cut again,or does the half-nut HAVE to stay on the particular rev,like you showed?Thanks!BTW,one thing we used to try when encountering chatter like that was to wrap the shaft with rubber sheets,or even lots of bungie cords to try to reduce vibrations,seemed to help.....
I spot the yellow dot. 😊
Hey man love the videos. Is so satisfying to watch someone use a lathe properly. One quick. Why no gloves? Just curious.
Thank you.
Threading the first end went fine.
Then some 'time waster' asks questions about half-nut disengagement instead of watching carefully and quietly.
@@Altglascontainer th-cam.com/video/ugIu1QzfZ5c/w-d-xo.html
- and note rule #1.
Questions are O.K. at a school.
That is not a school.
Can you show us the Copper pads after use some time around please? I'd love to see what they look like when they did their job:)
Beautiful explained. Great job. Well kinda request I want. Can u do learn cnc machining too, so we can learn along. U probably knew that already and hate it. But I made my request. U know
I was wondering a bit about that rumbling you can hear in the video when you started cutting. I don't know if you would be able to hear it just standing by the machine. Made me wonder about the bearings in the live center or the headstock.
My little 1950s swedish machine is metric, but has a 20mm leadscrew... in 8TPI, it cuts both metric and imperial threads with a norton box and changewheels, it has a dial indicator but I have no idea if it's meant for the imperial threading or metric or both? It has an odd number of lines (5) instead of 4 or 8. I guess the only way to find out is to test if it works with either.
Unfortunately you can't use the threading dial on a metric lathe like on a imperial lathe. The reason is, that metric pitches are absolute numbers, meaning 3 mm and not 3 threads per cm. Imperial threads are measured in threads per inch, so in relative numbers. This relation can be translated in gears. That is why the threading dial works in the imperial system.
Second thread looks worse than the fit. Fit is what's important.
Good video on cutting "foreign" threads. Useful comments on the importance of the feed nut.
Nice one!
As usual. Quality Content.
I hear you say things like "I'm gonna take it easy on this" or "I'm in no rush" BUT is there a time when taking it too slow is not good or have you ever had to "rush" a job through quicker than you liked.
hi mate , have you ever tried the hand held thread chasers that you hold like a wood lathe chisel , good for cleaning up chatter & forming root & crest radius .
My metric lathe (6mm pitch lead screw) can't cut a metric thread...it will split the thread once every 10times any ideas? The thread dial has 3divisions and no change pinions....Tuda - tudor max 3000
Nice
I wouldn't mind apprenticing with Adam, either. It would be weird since I'm damn near twice his age, though...
I hope Adam talks to his wife the way he talks to that thread.