Yes it works, but a slightly crude way of acheveing your goal. Running with such high feed speed that close chuck is always a abit risky. Also I suspect the finsh is quite poor and most machieists take pride in not only that they have made a part that works but that the surface finish is good.
I think the high speed part must have started after the video stopped or something. Lol and to all the manual machinists that say cnc is slower to make 1off parts? What planet are you from!!!!
Fair play to you! I think you would definitly need a run out groove at larger diameters or in harder material. Not sure how your not ending up with a multi-start thread, maybe because it's so fine. Nothing wrong with the self teach method: I bought an old book and practiced: I remember it said a good thread should have "neither bind nor shake" Just keep doing what your doing, just better each time.
Why in the world is everyone squawking about CNC? CNC is not for everything and it CANT do some things that you can do on conventional machines. Some things are slower on CNC than it would be to do it on a conventional machine. I'm a Tool Maker and I've also done CNC in production settings. I know.
Knowing how and when to be precise, and knowing when "good enough" is ok is what makes a good machinist. There is nothing wrong with cutting a thread this way when you know what you're doing. CNC is great but they cant do everything, and most manual machinsts cant afford one anyway, plus alot of work we do is one off parts where repatition is not required or the part might be a complex shape.
This is by far, faster than doing it by hand and definately good enough for its purpose!
Being a retired toolroom turner of some 46 years in the trade l have to say that l have rarely seen nor would advise running a thread leadscrew at that speed. l never ran more than around 300 and when threading up to a shoulder considerably less. l notice too that you were running to a stop so didn't need to withdraw the tool. But this leaves a vee undercut in the workpiece which results in a weakness at that point. Also,l would advise a centre on small dia' work chucked so far out..Sorry!
Well then- this is not to my taste!!! #1- You NEED read the book through of thread cutting; #2 speed down; #3 You NEED assimilation of more experience of thread cutting!!!!
What did you do at your work? I don't know of any Tool Maker who would endorse this kind of threading. I understand your point of trying to make it easier but don't make it wrong!
@FactoryDragon87 lets put it this way, the nut screwed onto the bar and he did it in alot less time- plus it probably cut alot better (less pressure on lathe motor)
@ASP1NALL #1 My lathe is simple like hammer, so then the 10kW engine not feel ANY presure; #2 I do my work without: mad, stress, stupidity!; #3 so, if YOU want crash YOUR machine at 1000RPM- You are wellcome! #4 Do You have a some understanding about cutting speeds and feeds??????
When cutting threads, I understand you have you set up the drive to run the carriage, but how deep do you know to run the cutter in. I do not see anyone taking measurments.
Great!. I would like use your experiencie to make a question: I have a southBend 1939 with a the set gear to inch thread. I woul like do Metric thread in the lathe.
How can I do? Do you know any site, or drive or other materiual than can help me? Thanks a lote. Aurelio- Brazil
I just dont think that speed is very wise or even doable with thicker stock. If your cutting 14tpi on a 1.5 " rod slow is the only way I would try it. and with a center in place. Neat video none the less.
I have not been successful cutting a thread thus far it is very frustrating. My threads are shallow, and the shape is wrong, not a perfect V, the cutting side and the trailing side are different angles, but my tool is ground equally and is set perpendicular to the job so I don't understand why its happening. I am turning with the compound at 30 degrees.
@calsonick Is your tool bit centered with the stock your cutting? Make sure the tip of your tool bit is level with the point on your center. Without seeing it it's hard to say.
@HWYII Hey thanks for the reply. I since worked it out. My lathe's "0" point has the compound parallel to the lathe axis, as opposed to perpendicular. So I was setting it 29 degrees from zero and getting the uneven thread as a result. When infact, most peoples lathes are zero'd at perpendicular and are offset 29 degrees toward the tailstock from that point, if that makes sense.
Wow. When I learned to cut threads, we set the compound to 60 degrees, and cut the leading edge. I also like to support the work with a live-center. But that's just me... I only cut swarf for three decades.
@jmar1371 That is EXACTLY the myth I am trying to dispel! On an industrial scale you MUST use the compound to cut an accurate large scale thread. On a hobby scale it is NOT THAT COMPLICATED! You can go straight in and achieve a very good result. The "expert career machinists" would love to make the world believe that threading is a black magic art that no hobbyist could ever hope to be able to do. I have been a career machinist for 40 years and I am SHOWING the hobbyists it's easy!
@rake60 I actually was cutting threads like this and getting ok results, however it was evident there was alot of force on the job. It is ok with mild steel, but with silver steel I started having problems, such as the job coming off the centre from excessive force and thus ruining the job. When I finally figured out how to cut with the compound rotated, the problem disappeared.
I have been amazed by the number of reply's to this video. It is not nearly as fast as any CNC machine can run, but it is by no means dangerous on a manual machine at this scale. The old, slow, rip and tear mentality approach to threading will still survive. The Master Machinists among us will back that up! If you lack the response of picking your foot up when the cat you just stepped on screams, do not try threading at this speed! If you are of average intelligence, it is not dangerous.
I don know why this world so many people who like to compare who is good, who is fast, and who is great. Mind yourself is enough, learn something is not to waste time for comparison.
For me I see what I could learn, that is all.
And for those who loved to show off, then is the one thing made idiot to compare.
You simply engage the half nut at the same number on the thread dial for every pass. On my lathe odd number pitch threads require certain numbers be used. For even pitch threads I can use any number on the dial as long as that same number is used for every following cut.
Single point threading is an easy process. Showing that was my intent for posting this video. It seems to have turned into something other than that.
Thanks, that clears up any confusion on my part. I'll have to remember that when I need to cut some threads because it's a lot faster than stopping the lathe and restarting it backwards, waiting for the tool to shuttle back, then restarting it forwards again.
On my little manual lathe I have to keep the half nut engaged for metric threads and reverse the spindle. I can't see how that could be faster myself. Do you have a video?
Yep! that's cool! I'm gonna practice that real soon! It so happens I have a lot of 3/16 brass stock and giving this a try should prove to be...dare I say...interesting to say the least!...Inspirational vid to be sure!
Boy that is scary. why do you need such a high spindle speed for threading? It's not going to help at all and it is a real risk; one mistake and you're done!!!
The R.P.M. , please ...
YHTLANTYS 1 month ago
Yes it works, but a slightly crude way of acheveing your goal. Running with such high feed speed that close chuck is always a abit risky. Also I suspect the finsh is quite poor and most machieists take pride in not only that they have made a part that works but that the surface finish is good.
dh5830 2 months ago 2
Did I miss something a thread that small on a piece of brass would be cut quicker with a hand die.
TheJimmax 3 months ago 2
I think the high speed part must have started after the video stopped or something. Lol and to all the manual machinists that say cnc is slower to make 1off parts? What planet are you from!!!!
gavinclair2007 3 months ago
That threading technique is ok, it´s a little bit dangerous and scary but nothing wrong with it. The guy can do it this way leave him alone.
kikilosabeyno 4 months ago
It worked, I didnt think it would, but it did!
Thats all that really counts
martintfsportland 5 months ago
It worked, I didnt think it would, but it did!
Thats all that really counts
martintfsportland 5 months ago
Mr. CNC hands lol
Blutquell 7 months ago
If it works, it WORKS! and obviously it works for Rake60, so why all the hate??
LunchboxMobile 7 months ago
damn that is dumbly stupid fast
rodstartube 7 months ago
thats a great video...and a good point. Thread cutting isn't voodoo. It's simple.
mztech 8 months ago
I didn't read most comments but, WHY!?
PimpXXXGuitarist 8 months ago
there is no need to run this fast slower with deeper cuts gets it done faster and smoother anyhow
86ComancheJeep 9 months ago
thanks for posting, whats w/ all the trash talk on these kinds of videos haha?
stevegates11 10 months ago
Fair play to you! I think you would definitly need a run out groove at larger diameters or in harder material. Not sure how your not ending up with a multi-start thread, maybe because it's so fine. Nothing wrong with the self teach method: I bought an old book and practiced: I remember it said a good thread should have "neither bind nor shake" Just keep doing what your doing, just better each time.
millimetreperfect 10 months ago
Why in the world is everyone squawking about CNC? CNC is not for everything and it CANT do some things that you can do on conventional machines. Some things are slower on CNC than it would be to do it on a conventional machine. I'm a Tool Maker and I've also done CNC in production settings. I know.
ACallToHoliness 10 months ago 3
this is not threading, if you cut a thread with a lathe you have to use the lead screw and not the main spindle with manual slide moving.
i suppose its a f.ake ^^
Tranixx 11 months ago 2
Knowing how and when to be precise, and knowing when "good enough" is ok is what makes a good machinist. There is nothing wrong with cutting a thread this way when you know what you're doing. CNC is great but they cant do everything, and most manual machinsts cant afford one anyway, plus alot of work we do is one off parts where repatition is not required or the part might be a complex shape.
This is by far, faster than doing it by hand and definately good enough for its purpose!
Well Done.
tboost007 11 months ago
You dont know what you're doing, or what you are talking about. Typical of you wannabe engineers. Stick to the nuts and bolts, cocksmoker.
scottmtm 11 months ago
This has been flagged as spam show
I guess you are a master to get this threads right.
UTubeisSHIT523441 1 year ago
Comment removed
UTubeisSHIT523441 1 year ago
wow, thats amateur
scottmtm 1 year ago 3
@scottmtm
THANK YOU!
That is exactly my point!
Threading is not that tough!
rake60 1 year ago 6
Being a retired toolroom turner of some 46 years in the trade l have to say that l have rarely seen nor would advise running a thread leadscrew at that speed. l never ran more than around 300 and when threading up to a shoulder considerably less. l notice too that you were running to a stop so didn't need to withdraw the tool. But this leaves a vee undercut in the workpiece which results in a weakness at that point. Also,l would advise a centre on small dia' work chucked so far out..Sorry!
crankbv1 1 year ago 3
i guess if it works, its alright, but hey, everyones different
hottrodder805 1 year ago
Well then- this is not to my taste!!! #1- You NEED read the book through of thread cutting; #2 speed down; #3 You NEED assimilation of more experience of thread cutting!!!!
FactoryDragon87 1 year ago 2
@FactoryDragon87
All I can say is LOL!
I've worked with a lot of book wielding "experts" that sound a whole lot like you.
In my hobby shop I try to show that treading isn't that complicated.
At work, inspectors don't care how you did it as long as it passes the quality control.
Mine always did. The book wielders were left to convince the inspectors why their's
should have worked.
rake60 1 year ago 9
@rake60 O.K. You can do as You like it, but be careful- do not hurt Yourself or someone.
FactoryDragon87 1 year ago
@FactoryDragon87
My goal is to show that single point threading is not some black magic art.
It's nothing more than cutting a simple groove that happens to be moving
along the axis of a shaft.
The "experts" can maintain their need to complicate the process and keep the
speeds and feeds in the era they were taught.
I'll respect your experience and critical review of how it is being done wrong.
Please give me a link to your video showing the correct way.
rake60 1 year ago
@rake60
"in the era they were taught....." ????
What did you do at your work? I don't know of any Tool Maker who would endorse this kind of threading. I understand your point of trying to make it easier but don't make it wrong!
ACallToHoliness 10 months ago
@rake60
i agree the book is a waste, but try to thread a 2 inch piece of 4140 to a 4.5 tpi and tell my single pointing is easy lol.
jkamping1 9 months ago
@FactoryDragon87 lets put it this way, the nut screwed onto the bar and he did it in alot less time- plus it probably cut alot better (less pressure on lathe motor)
ASP1NALL 6 months ago
@ASP1NALL #1 My lathe is simple like hammer, so then the 10kW engine not feel ANY presure; #2 I do my work without: mad, stress, stupidity!; #3 so, if YOU want crash YOUR machine at 1000RPM- You are wellcome! #4 Do You have a some understanding about cutting speeds and feeds??????
FactoryDragon87 6 months ago
When cutting threads, I understand you have you set up the drive to run the carriage, but how deep do you know to run the cutter in. I do not see anyone taking measurments.
qualitytimerec 1 year ago
@qualitytimerec
The thread was cut .005" deeper than the published double depth to guarantee a first try fit.
If it were intended to be a tighter fit measurements would have been needed,
rake60 1 year ago
@qualitytimerec
I go to the published Double Depth +.005
It works for me 95% of the time.
rake60 1 year ago
This has been flagged as spam show
@rake60
Rake60 said: "It works for me 95% of the time."
So 5% of the time you make scrap? Im glad your not working in my machine shop!
GARETHMOCHAN 10 months ago
@qualitytimerec pitch times .866, and his cross feed should be set at 29.5 degrees, which it is at approx 90
BifflerulesALL 1 month ago
Great!. I would like use your experiencie to make a question: I have a southBend 1939 with a the set gear to inch thread. I woul like do Metric thread in the lathe.
How can I do? Do you know any site, or drive or other materiual than can help me? Thanks a lote. Aurelio- Brazil
Palmaa2009 1 year ago
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primazo46 1 year ago
I just dont think that speed is very wise or even doable with thicker stock. If your cutting 14tpi on a 1.5 " rod slow is the only way I would try it. and with a center in place. Neat video none the less.
HWYII 1 year ago
I have not been successful cutting a thread thus far it is very frustrating. My threads are shallow, and the shape is wrong, not a perfect V, the cutting side and the trailing side are different angles, but my tool is ground equally and is set perpendicular to the job so I don't understand why its happening. I am turning with the compound at 30 degrees.
calsonick 1 year ago
@calsonick Is your tool bit centered with the stock your cutting? Make sure the tip of your tool bit is level with the point on your center. Without seeing it it's hard to say.
HWYII 1 year ago
@HWYII Hey thanks for the reply. I since worked it out. My lathe's "0" point has the compound parallel to the lathe axis, as opposed to perpendicular. So I was setting it 29 degrees from zero and getting the uneven thread as a result. When infact, most peoples lathes are zero'd at perpendicular and are offset 29 degrees toward the tailstock from that point, if that makes sense.
calsonick 1 year ago
You wanna be using a guard! Especially cutting something that samll at that speed!!! iF you dont it will end in disaster!
Roger674 1 year ago
@Roger674 The difference is a good machinist will react, get a feel and be prepared for any untoward pending disaster.
Amases me so many namby pamby boys plus you cannot see what you are doing with a guard in place.
jhareng 1 year ago
dont worry about the retards who want to tear down everyone and everything they see, im a student and appreciate ur tip
cheboludo333 1 year ago
so where is the "High speed" ?
cosast54 1 year ago
Wow. When I learned to cut threads, we set the compound to 60 degrees, and cut the leading edge. I also like to support the work with a live-center. But that's just me... I only cut swarf for three decades.
jmar1371 1 year ago 4
A very valid point for the industrial threading applications.
I can match your experience years as an industrial machinist myself.
My intention is to show the hobbyist that single point threading on
a model scale is not as complicated as the "experts" want to make
it appear.
rake60 1 year ago 2
rake60 1 year ago
@rake60 I actually was cutting threads like this and getting ok results, however it was evident there was alot of force on the job. It is ok with mild steel, but with silver steel I started having problems, such as the job coming off the centre from excessive force and thus ruining the job. When I finally figured out how to cut with the compound rotated, the problem disappeared.
calsonick 1 year ago
LOL thats why I left machining and went into fitting.... Harder to fuck up and easier to hide when you do :)
GeneralG1810 2 years ago
I have been amazed by the number of reply's to this video. It is not nearly as fast as any CNC machine can run, but it is by no means dangerous on a manual machine at this scale. The old, slow, rip and tear mentality approach to threading will still survive. The Master Machinists among us will back that up! If you lack the response of picking your foot up when the cat you just stepped on screams, do not try threading at this speed! If you are of average intelligence, it is not dangerous.
rake60 2 years ago 7
What's the point of crazy fast spindle speed???
You're only going to be sorry when you hit the chuck someday. Isn't this supposed to be a relaxing hobby?
powaybob 2 years ago
Run a left hand tool upside down, with the spindle in M04 (CCW)
Feed from left to right, then no worries of hitting chuck :D
blanketjunket 2 years ago
Is this mini lathe like my - 300 mm max lenght?
musician725 2 years ago
Decent dude did you get much chatter? I kept expecting you to miss the dissengage and watch the tool post fly into the chuck NOOoooo...
GeneralG1810 2 years ago
@GeneralG1810 I did that once I didn't use the auto feed I was end facing a 1/2 washer LOL.
OneCompHelp 2 years ago
I don know why this world so many people who like to compare who is good, who is fast, and who is great. Mind yourself is enough, learn something is not to waste time for comparison.
For me I see what I could learn, that is all.
And for those who loved to show off, then is the one thing made idiot to compare.
andersenchong 2 years ago 9
try it on a cnc at 2000 rpm!
sentinal2000 2 years ago
I do operate a Mazak turning center for a paycheck.
It IS much faster but that is an achievement of programming, not machining....
rake60 2 years ago
slow like a women. try lathe 1" 8G bolt with 500+ rpm
zackchoowh 2 years ago
How do you know when to engage the threads? Or doesn't it matter? I haven't had to cut threads with mine yet.
TheLightningStalker 3 years ago
You simply engage the half nut at the same number on the thread dial for every pass. On my lathe odd number pitch threads require certain numbers be used. For even pitch threads I can use any number on the dial as long as that same number is used for every following cut.
Single point threading is an easy process. Showing that was my intent for posting this video. It seems to have turned into something other than that.
rake60 3 years ago
Thanks, that clears up any confusion on my part. I'll have to remember that when I need to cut some threads because it's a lot faster than stopping the lathe and restarting it backwards, waiting for the tool to shuttle back, then restarting it forwards again.
Cheers
Robert
TheLightningStalker 3 years ago
I added a new video today that shows the manual controls a little better if your interested.
rake60 3 years ago
where is the high speed?
I find its faster not to disengage the split nut but to reverse the spindle to bring the tool to its start position
cosast54 3 years ago
On my little manual lathe I have to keep the half nut engaged for metric threads and reverse the spindle. I can't see how that could be faster myself. Do you have a video?
rake60 3 years ago
Nice work, its fast, but not 'high speed' as the term would be used in machining.
caulk04 3 years ago
omfg thats no high speed
SilverTechno 3 years ago
check diameter... and he machinig brass, no probleme he can turn 10 000 RPM... if he is crazy!
djmeo 3 years ago
micro switches rock!
Axbent 3 years ago
Impressive. :-)
jaycek 3 years ago
Tz thats no high speed!
Paulpanzer112 3 years ago
I am always happy to learn better ways.
Please post a video of you own skills.
rake60 3 years ago
here is a video of my skill
i make a video respone.
S3bastianCee 3 years ago
Rake60 is manual and EPIC... urs is CNC. Thats cheating! =P
M1CH0 3 years ago
look his hands at the left of the screen... this lathe is not CNC... he treaded 1/4-20 NC probably... 0.05 inch/revolution...
at 1000 RPM his feed is 50 inch/minute, less than 1 inch/second... I saw more fast than it :)
just tu be sure, witch is the tread? and the speed of revolution??
djmeo 3 years ago
man that'll leave a super finish
tharbk01 3 years ago
Oh it's not as dangerous as it appears.
It was a 10-32 thread being cut in 3/16 dia brass stock. If I had missed the relief groove it wouldn't be gouging into much.
The soft metals I work in will tear at slow speeds. 300 Feet Per Minute surface speed, and keep you mind on the game.... ;-)
rake60 4 years ago
Yep! that's cool! I'm gonna practice that real soon! It so happens I have a lot of 3/16 brass stock and giving this a try should prove to be...dare I say...interesting to say the least!...Inspirational vid to be sure!
Rigel66 4 years ago
lol...well you certainly have more confidence in threading than I...my spindle speed is a joke compared to this insanity! Awesome man!
Rigel66 4 years ago
Boy that is scary. why do you need such a high spindle speed for threading? It's not going to help at all and it is a real risk; one mistake and you're done!!!
latheworks 4 years ago