Now that there's funny, I don't care who you are. You gotta love the guy!

He porbably thought you were a jerk for having a gun

@@daverowe4566 More like thought of you as a jerk on general principles.

@@The_DuMont_Network no the gun thing

@@daverowe4566 not gonna get in a pissing match over gun ownership. My choice your choice.

They probably do other work in between. Most shops do many types of machining.

there wouldnt be if people used the taps right.

it happens all the fucking time in high volume manufacturing.

yeah, well when the guy in charge of buying shit only gets plug taps and bitches when they get chewed up you start getting taps broken off. seeing as the part is usually worth about many times the shipping cost off it goes to the guy with an mdm

very true!!!!!!

he talks so slowly tho

Jim Watson Isnt that the truth? I once worked for NASA with a bunch of double Phd cryogenic scientists. They couldnt engineer their way out a box!! They were always ‘right’ and wouldnt listen to my input ( just a lowly machinist) so I just took their money. I built stuff over and over until contracts ran out then got a new contract! Eventually they would come around to my ideas but they took the credit. I took all their money!! This is how our government ‘works’!!

@@drkastenbrot and constantly repeating what he already said

Noticed ALL you said myself

ian gee All of us old ancient machinists repeat ourselves because we know people don’t listen. We know they already think THEY already know it all. We just keep repeating ourselves until we see it sinking in, penetrating their thick skull!

EDM is so cool. I only worked on sinkers. I never got the chance to work on a wire EDM. My excellent old friend is an engineer. He gets destroyed guns from a police friend, back engineers them and reproduces them. Between the two of us, we can build literally ANYTHING! We've done some robotics as well. Way too much fun! He designed and built his own sinker EDM that mounted to his Bridgeport. So he can machine hardened steel easier. He was my manager where we ran a prototype machine shop together at a NASA test engineering lab. This job was so fun I nearly got divorced! Fascinating stuff! I was rebuilding a transmission for my Toyota rock crawler. I broke some bolts off removing this 20 year old bell housing. He brought his EDM unit over to my house. We mounted everything to a solid bench and burned out the broken bolts in about 30 minutes. Easy peezy! It was so easy we spent another hour burning holes in a 3/4" cobalt hardened tool bit just for laughs. About 15 minutes per 3/8 hole!

Ur a glutton for punishment I wish u worked at my shop lol

We have a local retired machinest that bought a Acer Knee mill. And all he does is broken off taps, Studs, and bolts that guys tried to drill out with a hand drill then got the hole off center and made a hell of a mess. The best yet was a head off a 1066 International Tractor that the grandson had a bright idea of using a air impact on a cold engine to try and fix a exhaust leak. He broke off ALL the studs but 1. When I went to look at the job I told him there was nothing short of pulling the head off and taking it to this gentleman. The Grandfather said no problem, And the Grandson just rolled his 20 yr old eyes. And was positive there was no fixing his disaster. So the next day with head in (2 hands) We set it on the mill table and he started his magic. 2 hours later and 5 inserts to fix the out of shape holes. The job was done. I asked him how much?? He said normally he would get $40.00 a hour, would 2 hrs at that rate plus the parts be good?? I handed the man 4 $100.00 bills and said "NO, I think you need to raise your rates on jobs like this" A good machinest an save you hundreds if not thousands in some cases. Sadly the man's getting older and can't do the work he used to. And there's no one younger coming along to do this kind of repairs any more. Its sickening to think these talented men will take this knowledge with them to the grave with out passing it along to the next generation.

+pssst3 thanks a lot compliment

+pssst3 also, if theirs any parts that are small enough, surprisingly, shipping is not as expensive as you might think

I bet you it's because of automation. Got a big CNC machine doing tap work which has no 'feel' like a human doing it.

@@gymkhanadog youd be amazed how many people break taps. some real idiots out there

I was thinking the same thing. We usually just weld a stud to the broken tap and try and back it out. Otherwise you have to drill it out in progressive steps.

@@bradhaines3142 ugh everyone in every machine shop breaks taps.

@@bradhaines3142 look out the master machinist Brad has spoken.

Was doing spark eroding in the late 70’s early 80’s in our machine shop where dopey turners kept breaking drill centres in their work pieces!

Couldn't care less.

I didn't know he was chewing gum until I read all the comments.

A lip full of chewing tobacco would be much healthier haha

His shop his rules.

+tom jackson Thanks for the compliment

We mill out broken taps with carbide. It works sometimes. EDM is the best and safest method to use on really expensive parts.

Sharing the knowledge and the information

Hopefully the client didn't acquire an Invoice Disintegration Machine (IDM).

Its actually pretty simple. Youre just burning out metal. Machinery is very expensive though. This is how you save extremely expensive parts after a bad day at work!

absolute waste of time, this procedure destroys good equipment and clearly resulted in serious damage to the thread

@@jefrhi clearly you have a micropenis

well, the same machine that burns the hole in the tap, also burns a another hole in the customer's purse.

EDM is nothing new

This is exactly how EDM got started. I worked for a company that built die sinker and wire cut EDM machines 20 years ago. Really neat stuff can be done with those machines.

EDM is a different principle and it is performed in an oil bath.

It is Kerosene not oil, BUT it can also be distilled water ( De ionised )

threw*

William Ambrogio hey that was me on the other boat!!!!

Peter

Model paint mixer

Sounds like something I would attempt to do. how did you center it and how did u get to that depth to get the broken stud. how was it held so steady that u did not hit the threads?

John Conrad Thanks for the question. The amount of stud in the head was shallow. On a 2 1/4" long stud only 3/8" of it is in the head. This seems to be common with European DIN studs. So the Dremel ball grinding stones had plenty of shank. As for holding it steady I had the intake and exhaust manifolds off so I could crawl into the engine bay and brace myself. Then just grind a little bit at a time. I submitted this as a Tech Tip to Engine Builder mag couple years ago and they published it. I had no choice but to do this. Didn't have access to Tom and his cool machine.

Scoop oh man, U're really, really lucky ... I've got a 'new' motorcycle last year ... only 30 years old ... had to remove 3 broken bolts for just the first month ... lucky me they were not high hardness. Unlucky me one of them is actually not a bolt, but welded holder with threaded end. But anyways, can't use such machine. This is kind of specific, I see the workhead can't angle, so you have to level the part somehow. It is utterly strange the yellows are not selling such machines in hundreds already. But of course re-modeled for 'home use'.

@@drgrunn174 Wow, I would love to see what you're up to. It's possible Dad taught me some trick that would help you out but without a clear shot at what the problem is . . . well good luck is about I have to offer. One thing though, wonder if someone with some real know how could develop a hand held device that would work. I'd say that guy would make a few bucks.

Mike Sokolow Or little nerds that couldn’t turn a screwdriver but know 69 positions on butt-fuckin

Im 28 lost my front teeth at 16. I can't chew either sticks to my partial dent

worst technique ever, incredibly time consuming, ruins good equipment and causes significant damage to the thread

The process has been around a lot longer the most people realize.

Tom Grafton Brilliant, how much did that rig cost?

tickyul 25,000.00

Tom Grafton YIKES, that's a LOT of repair jobs! Well, then again, seeing the complicated jobs you do......maybe not THAT many!!!!!!

The tip need not be that hard to fuck the hell outta that dead tap shred. the back needs to be hard so the hammer could strike it well.

+nraynaud1 You'd need full specs for the tapped hole - thread depth, thread tolerance class, bottoming or taper tap.... much better to let the customer finish the job than risk screwing up a big, expensive part! Plus, there's likely other holes that still need tapping.

I guess you think he never did this before. I would venture to suggest that the chisel isn't meant to be sharp, just tough.

I guess you don’t understand the basic heat treating/metallurgy. Chisels are meant to be in the 40-50hrc range. M2 steel is usually hardened to around 61hrc and above. So this would be kind of a special purpose chisel. Heating it up to the orange temps(1500f or probably higher from what I could tell) isn’t only going to drop it beneath that hardness, but it’s going to completely ruin the heat treat. If he intended it to just be any old chisel that would be super soft, why the hell would he use m2? The fact that he took the trouble to mention it was m2, leads me to believe that isn’t the case. Lastly, doing something wrong for a long time doesn’t make it right.

He never specified how exactly it was hardened though did he. My supervisor showed me nitrided ejector pins that looked almost identical to those he used. Hardest metal ive come across and would be perfect for this job

@@jamesmgordon83 He told you it's M2 High speed steel. You can get it red hot without affecting hardness.

@laurie Agnew He went to the trouble of saying “m2 steel.” That is a tool steel and it’s meant to be heat treated before use. Otherwise any old mild steel would work. Seriously, I don’t know how this is hard to understand. In regards to the “nitrided” ejector pins, that is a process that only hardens the surface. Once you sharpen it a time or two, it’s gone.

Yeah, I'm gonna throw a guess that he doesn't give a shit Blayne

in theory it could, it depends all on how long the heat has time to travel trogh the workpiece. If you grind only for a short time it has very limited effect on the hardness. Also keep in mind that the part which is glowing is also grinded off. Keep the grinding time short. If you need to grind more , always have a water pot nearby so you can cool the part every ~3-8 seconds or so ( you can feel the heat with you fingers, if its hoo hot to hold, you are too late, cool it before you reach that point.

the tip has lost its hardness at that point, yes

I think he only got it to dull red, not cherry red.

M2 is HSS steel and probably they are tempered to "red hot hardness" - but even if they get a little softer, they seem to work well for him🤷🏼‍♂️

@@kknives_switzerland yeah... Its jist that I've ground a lot of hss over the years & tbh I've found that "bluing" it during the grind doesn't help with tool life, on the capstan lathe I ran, despite the "red hardness" attributed to hss... but as you say, it seems to work for him ! 😉 Thanks for chipping in ! 😎👍☘🍺

@@peterfitzpatrick7032 I totally agree on the blueing part; I run all my grinding equipment water cooled for that reason - in knife making, not the slightest discoloration is allowed to occur.

@@kknives_switzerland I'm assuming its flood coolant... No dipping a hot piece in cold coolant.. 🙄😏 I dry-grind to reduce the risk of micro-fractures... just takes a little longer... 🤓 But I'm mostly only grinding hss blanks so not as critical as your grinding sounds... 🤔 😎👍☘️🍺

@@peterfitzpatrick7032 Yes, flood coolant! Got some videos up on it if you want to take a look. Thick blanks are an entirely different game than a 0.015 inch thick cross section like it is common in knives - let alone the edge itself! Always cool to peek into other crafts!

***** It's happened!!!

***** I was joking. (That's what the sideways smiley is for) :-) But Tom (above) says that it has happened.

***** Chasing threads just means gently running the tap through to check the integrity of the threads. Tapping is where you actually cut the treads and he did say he was chasing them. I've never seen someone break a tap chasing threads ever.

***** I'm sure the company that broke the tap weren't using any cheapo taps; judging by the piece they sent in.

Fucking mounth clappng pig, can't listen to this abomination

Not gum, it's the putty. Chewing keps it moist and reusable.

Did you learn something new or saw something new... wow I would of loved to have you tube when I was a kid

the man looks like he could probably break you in half with a look. He's been at this for years, and his experience speaks for itself. If he wants to chew gum, let him chew gum, man. He's earned it.

quit your fucking bitching and enjoy the video

Why is it rude to chew gum while talking?

hey now, picky as he is, no one deserves that. he just didn't like the dude chewing gum. Is that really worth saying things like that? I'd rather remain quiet and be thought an asshole than open my mouth and remove all doubt. Be kind, people.

Lol. "he's earned it". Either it's loud, obnoxious and disrespectful or it's not. I've worked very hard in my life too - so what's this supposed to be, a comparison game to see who deserves to be obnoxious or not, or who could beat up the other person or not?

probably paranoid about his breath after smoking a huge joint

+Isaac Dahlvang hard habit to break, but i did, thanks to your comment!

+Tom Grafton great job on that! stronger than I am haha. I can't get off cigarettes. thank you for your response!

Conor I finally quit, i thought it was annoying myself!!! Tom

Moron.

phil376 You used a colon for what? Fucking moron.

Fuck off conor