Added: 1 year ago
From: MechanicalEngineerJW
Views: 182,876
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  • why no oil?

    

  • muppets.

    

  • what's impressive? go out and buy one. when you accomplish that, talk about it.

  • What's so impressive about this?

  • Wear those safety glasses sir. You really should. And thanks for sharing the video.

  • use the traverse knob head. whats so good about that. piss easy

  • Crap video by 2 english twats that dont know shit.

  • you really don't have an idea what's unbelievable turning

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  • so 1000 thou is 1 inch? but 1000 is a metric measure. Why don't you be smart and just use metric, believe me you will be happier than ever.

  • @syalcin123 1000 thousandths of anything = 1. Basic mathematics. Now that's smart.

  • @jaybirdsc1 using imperial inch and dividing it by metric thousand is smarter.

  • @syalcin123 sounds unnecessary

  • Nothing special ^^

    

  • that looks unbelievably unsafe. flying metal bits in room is what you'd really want.

  • Nothing (unbelievable)....therefore dislike

  • another red light saber on the like bar

  • Blue swarf...well done wrong speed and feed

  • Decent bit of turning

  • "unbelievable" display of how not to run a lathe !!!!

  • 4:40 best part XD

  • @evbunke2 Looks like someone used google..lol

  • What's unbelievable about it? Looks like very basic turning to me.

  • @chimparse Whats unbelievable about this video is that over 150000 people have sat there and watched it.

  • Autofeed gives a MUCH more consistent surface finish. Also I'd love to see your screw threads cut by hand feeding...

  • But good job you did a great job, As for the guys saying use auto feed I prefer to do it all by hand also what's the point in making something if you don't have to put effort into it ? at least once your done with something you can say YOU made it not I set it up and the machine made it

  • Yep you really should never wear rings or any jewlery for that matter while working with any machinery

  • and where did all you experts learn to machine, let me guess you took shop in high school last year. as for the vid, but i would put the coolant on the cutting tip could help and let you spin faster and take bigger bites with the tool

  • Gees dude are you allergic to the auto feed or what? You should be working the machine not letting the machine work you!

  • If you can't make it better them him. then shut the fuck up!

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  • youre bad wiath a lathe

  • your really bad with a lathe man.. :/

  • @integrex35

    She accidentally shot this video.

  • @integrex35 Didnt you hear him go "Oww" at the 3 min mark.

  • Great way to ruin the carbide tip with no lube!

  • @speedy02 You may want to go learn a few things about machining before commenting on videos. Try doing a bunch of turning with a carbide insert, get it as hot as possible, then pour just a little drop of coolant on it. It' will promptly shatter due to the temperature shock. Carbide is cool with heat, it's a lack of heat that will ruin it.

  • the accident will be when he get the ring on the second finger of his right hand and the bangle on his left hand caught in the lathe then it wil be LOOK MUM NO HAND OR FINGER

  • damn man use youre oil cut xD

  • @AlxMiNeR its a cemented carbide tip dont need to..

  • @xXTURBOZDXx ok i tought that was much harder mat.

  • @AlxMiNeR

    dont need cutting fluid with carbide tools

  • I would of thought using coolent would allow you to remove more material and at higher a rate. The excuse is spalshes on me is pretty poor. Stand to one side, i.e not inline with tool where you should be anyway.

    Also hand feeding while your facing??? Use the feed. Good finsh from what I can see though.

  • shoulda started with a smaller blank saved you about half the machine time you wasted on it

  • nice machine work.

  • yeah if you worked in the shop i do boss man would fire you as soon as he saw that shit your doing oh yeah and kiss that carbide bit goodbye

  • i am 15 and i can do a better job as you

    noob

  • @samognzu Yer but his grammer isn't as sh*t as ur though is it?

  • Not to nit pick but..........

    Learn to use correct feeds, speeds and depth of cut then let the machine do the work. Your obviously not in a production shop.

  • @ktmpasser Yes, you are nit picking. ya jealous douche how do you know it's not a production shop,every shop needs tooling. Are you the feed engagement police?

    "Do It My Way" His trepanning was by hand and pulled a great chip, looks like he made great time on it too, anyone can push a button or even program he's not some donk operator, too many operators calling themselves machinsts and most never served apprenticeship, great job bud, don't listen to a blowhard hater like this guy.

  • @joeysmachine Wow...kind of touchy. There is a reason for all the levers and knobs on a lathe. They've been there nearly unchanged for a 100 years. You learn their general function in High School shop class. 

  • @integrex35 the whole vid was the accident. would be nice to see the tolerance when it has had a few days to cool down.

  • dont be haters boys and girls!!

  • Stupid

  • what's dat smoke :3

  • this video should be called "WHAT NOT TO DO"

  • thats a rap on that bit!!!

  • thats a rap on that bit!!!

  • u suck

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  • @integrex35 show be named as "Bad tooling at work"

  • no coolant?

  • @integrex35 its a accident waiting to happen

  • ACCIDENT The only accident i see is this video.

  • Carbide inserts can leave a nice finish as long as you're getting enough heat, .02" finish cut will give you a grey crappy finish, but of u leave .08-.1" for your finish cut, it'll turn out like a mirror.

  • never heard of "safety glases "??

  • bah fico mtu boa em mew!!!

  • try mist coolant, its what i use on my Bridgeport.

  • The people complaining about lack of coolant must be CNC-only machinists. You don't bathe your parts in coolant on a manual lathe, buddies. I take dry .100" roughing cuts with indexable carbide on mild steel without a problem. Finish dry too.

  • so was the accident when he spilled his coffee lol

  • Where I work the tolerance is +/- 0.005mm, 5 microns, machine shop is strictly 20 degreesC for expansion reasons… bitches

  • @alistairpalau dont get a boner!!!!

  • @hansfordelena dont you mean +/- .025

  • no coolant....then i take it the tolerances are +/_ .25 " on a good day...but where was the bad accident? someone miss title another video here on youtube? that never happens...

  • @hansfordelena

    Seriously? I`ve got a tolerance of +/- .02 on a good day...

  • No coolant = expanded metal and a fairly inaccurate cut and final product. I don't know about anyone else but I have to work within a 0.01mm tolerance.

  • @charscore yeah 0.025"..... thats a bucket mate

  • Nice Ring!

  • the problem with turning with no coolant is the heat build up in your job and that can affect your final size cut

  • if you use coolant chances are your paying for your own tips....

    but if your not then... rape the tip!!!

  • Whenever I want to read an argument, I always find a machining video.

  • CHILDREN PLEASE DON'T YOU HAVE ANYTHING BETTER TO DO THAN ARGUE?

  • When turning an OD that large you must lower the RPM's due to an increase in surface feet. It looked like the boring operation went smoothly but then the OD cut was getting a bit hairy. Here's some math I do but I'm sure there's an easier way. If the carbide cutter calls for 300 sfpm and you need the rpms for a 12 inch dia plate then do this: (300 x 3.82) / 12 inch plate = about 95 rpms. Using the same math for boring a 2 inch hole gives you 573 rpms. much different.

  • @ruscccpsia2010 the simplified math i use for CRS using carbide tip is (400X4) / diameter and with HSS it is (90X4) / diameter.

  • Jewelry??? Really??? Brave... nice part though! We had a guy at work get his ring caught on a spindle - apparently the weakest link, was the where the tendon attaches to the muscle in the elbow... They put the finger back on - maintenance found the tendon wrapped around the spindle, when the OK was given, to clean the machine for service...lol.

  • was he ment to be lathing a cymbal?

  • About some of the other comments: The rule is use plenty of coolant or none a all. I usually manually turn dry because it splashes all over me. There were a few things I would have done differently but he made a nice looking part so I'm not going to criticize. Nice job. We had Colchester lathes in school and we all loved them. The new guys would go for the shiny new asian-made lathes and the more experienced ones would always use the grungy old colchester lathes.

  • @fall22123 ( " point 2 comment " ) Using coolant to start with would help. Ragging on the guy like you were a drugger doesn't. Manual feed is ok when you are not sure yet how much cut you want to take.

  • Vernier calliper, we were taught to use micrometers, oh and where were his safety glasses?

  • Where was the coolant?

  • Have to agree with jacksonhammy! P.s 140 is nothing! that's only 70 thou aside, 150 aside is a decent cut

  • @s70esh 150 a side is nothing, I take 500 a side with the leblond all the time.... ok so it's a 6ft swing monster with a motor/generator set feeding an ancient 600volt 50hp dc drive motor.

  • POINT NUMBER 1!!! : dude, seriously, when facing use the auto feed, thats what its for.

    POINT NUMBER 2!!! : GET SOME FUKING COOLANT ONTO IT!, if the swarf is that hot then its doing no good at all for your carbide tip.

    POINT NUMBER 3!!! : when you have your checking the width, length, etc. hold your foot on the emergency brake or turn the lathe off to prevent injury.

  • @jacksonhammy well lets see a soon to come vid where somethings riped off

  • @jacksonhammy Dude seriously you obviously dont work in engeenering or you are a diploma fucking class a act , every old cat with some experience knows that hand lathe is tottaly different than cnc.. coolant is rarelly applied , i would like to see you apply coolant and get your face all wet not to talk about not seeing anything at all , becouse of the rpm the main spindle has creating a facial of emulsion : ) dont smart ass like every other enggener , the guy knows his job

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  • @oldschoolrock4evr take a look fuckwit, most like bitch. I use a lathe 8 hours a day and have done for years, making shit you couldnt begin to understand, there is no such thing as a hand lathe you moron, standard lathes have worm drives and are there for a reason dumbass. think before you open your trap.

  • HAHA lol you obviously are a deluted diploma freak or just a keyboard warior that likes to run his mouth...Hand Lathe is something we say its just a hillbily thing i guess. And dont worm your way out of this argument , the things you said in your previous comment , they speak for themselves . and i m not talking you cant lathe at all , you probably work on cnc machines , just understand that its a whole different ballgame and know that engeeners like the one in this vid is to be respected

  • @oldschoolrock4evr the guy in this vid is so far away from an engineer that its not funny, its common sense to any machinist about the proper practices that you should put to use on such a job, stop trolling and go back and learn propper terminology, not even expert machinists call them 'hand lathes' its a standard lathe dumbass, cnc lathes are a whole nother thing that would just confuse you at first sight, dont split hairs jackass, deal with the facts.

  • @jacksonhammy Whatever you fucking idiot theres no point in arguing with u ..take our terminologys and stuff them in ur ass you ll probably like it, i stop comennting now

  • @jacksonhammy Why do you use coolant with carbide? I only use it when working with HSS and it depend of the material im working with. When the chip is on fire you should tune up you feed / rpm / depth of cut before thinking about using coolant. When i use carbide the chip is always blue and it is a good sign that the heat is transfered to the chip and not to the carbide tip. If im wrong please enlighten me.

  • @lostorb12 im not even gonna start with you 'facepalm'

  • @jacksonhammy why not, you seem to have a lot of free time to spend arguing on youtube abyway.

  • @jacksonhammy in this case the carbide tip may not be able to handle coolant because of the temperature. In my experience sometimes on heavy cuts the carbide will explode at great temp differences.

  • @jacksonhammy so.. i guess your an expert? or just a hard working button pusher that punches in g-codes all day? if youve ever ran a manual lathe with coolant on youd know how messy that shit can be. it looked to me like this guy totally knows what hes doing.

  • @jacksonhammy cutting steel using carbide and not using coolant is ok as long as your feeds and speeds are set correctly to get the heat out with the chip and not let it absorb into your cutter

  • @jacksonhammy hey mate, im a machinist in australia and id just like to add that if your feed and speed are correct for the tool. (in this case they are not). you should get small hot blue chips. these hot blue chips take equal to or more than 80% of the heat away from the job. if you look at the composition of carbide it actually requires heat to cut. unlike HSS. i was shocked too when i found out. but its true. some manufacturers even say the use of coolant on carbides can reduce their life.

  • @jacksonhammy i have to agree with you on that for except the number two, on such RPM, the coolant would be all over the place but that could be prevented with a shielding which i got made for my machine

  • @jacksonhammy depends on what tip. Some tips crack under coolant that you use on hardened parts.

  • @jacksonhammy nah coolant is overrated ;)

  • @kleinesmaenchen i agree, your work piece and carbide insert shouldnt get that hot at all if you have your speed and feed down perfect... ;)

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  • @jacksonhammy you sound like you know SWEET FA!!

  • well that was pointless

  • are you guys noobs or something, if you are using Tungsten Carbide bits you better be taking 140 and getting blue chips or you will crack that thing fast, HSS is dead for the most part, if you are using High Speed Steel bits then blue chips are bad.

  • well not bad just frowned apon.....like jacking off on a plane, thanks alot bin laden

  • blue chips is a bad sign

  • Seriously rename this video. it sucks waiting for nothing to happen.

    I like the results though

  • I also like the result.

    Demonstrating that manual machines most definitely still have uses.

    Now I would like you to mill a circle, dials only. :P

  • @lexichronicle2 rotary table or indexer, one dial.

  • @facemeatsurfacegrind that's cheating

  • nice job, great finish and awesome machine!

  • Ya it's a good thing to roll up sleves, and when boating on your last pass do a spring cut.

  • looks like .070" doc, .140 total.

  • A bit concerned that the guy in the clip has a ring on one hand, a bracelet on the other - i won't wear anything that can catch on a rotating machine!

  • 140 thou cut! i would get the sack if they saw me take that much off any material lol do you make these back plates quite often then? or are you some sort of toolroom?

  • @PoshaBoiWaters 140 thou isnt that big a cut to be honest on site 400thou is more common

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