Adam Savage's One Day Builds: Giant Nut and Bolt!

[@tested]

Psssst, we have 98 One Day Builds in our playlist now. Just sayin'. See for yourself: kzbin.info/aero/PLJtitKU0CAej22ZWBqrimPkn0Bbo6ci-r

[@VikasPatel-nl8tb]

Just wondering Adam, is cooling fluid not needed on brass?

[@gaivoron]

Adam, could you consider doing something like a giveaway or a raffle for your fans? I would love to get that bolt and nut for my personal collection. I've been a big fan of mythbusters since the very first episode; therefore, I would have lots of sentimental value for anything that involves you and the crew. Thank you.

[@inspirius]

Anything special planned for the 100th?

[@ifihaf2]

Seen't it.

[@deletedhobo7405]

Okay, but how many actually took a day to do?

[@villentretenmerth11]

I love how the whole world shakes each time he sets the brass on the table.

[@Pehr81]

got me every time! *bong!*

[@josephhovley804]

*BOOM*

[@michaeltodd5806]

Thor's brass chunk

[@lividnooblet]

That’s an earthquake in Cali

[@bonzainews]

I thought that was rather douchey. Once or twice, ok. But slamming it down for effect? Yes, Adam we know solid chunks of brass has some weight to it.

[@Katllan]

I admire how Adam will admit to his mistakes and bring them up as a talking point to help out other makers. Adam's a great guy.

[@micahbruce4547]

Hey it's like that episode of Mythbusters where they smashed 2 semi trucks together."Failure is always an option"

[@719gt4]

The way Adam speaks about this, helps me to accept the mistakes I make. Thanks Adam!

[@absoloodle37]

Agreed. I will never machine a brass bolt. But that doesn’t matter. Meta-cognition is learning how to learn. Adam’s style is about mentorship, not just learning the steps of how to make something.

[@michaelcruz1434]

I appreciate Adams honesty. I think a lot of You Tubers would have just edited out their mistakes. Good job Adam!!

[@furnerdhavenhomeofthenerd8844]

Ppp

[@thethoughtemporium]

Can I just say I'm loving this new format? Like obviously this was a great channel before, but it felt very... produced? I dunno if that makes sense. It felt like something you'd see on discovery. Now it really does feel like a youtube maker channel. Both are great, this just feels more personal. I look forward to more of the old style, but this new style is very fun as well. It's also humbling to see you struggle. After years of watching your stuff it always seemed like you are an expert in everything you do, but seeing you struggle to learn a new skill was great. I'm a little surprised that you're just learning this particular one though. Cutting threads was one of the first things I learned on a lathe, but then again everyone's machining journey is different based on what they want to make. You make so many things effortlessly that I'd find super difficult to machine. All in all, great job!

[@TheGamingComputerBomb]

Fancy meeting you here, also well said

[@OriginalHuchang]

TheGamingComputerBomb agreed.

[@PBMS123]

Because it was very produced literally speaking. They had crew, cameramen, lighting, etc.

[@offspec]

Well said, glad to see one of my favorite content creators sharing my own interests.

[@BigDaddyWes]

I think the only difference from this and the majority of tested videos is the lack of a camera operator. It's always been just a dude in his workshop building things and the "format" hasn't changed. He's just social distancing.

[@bmbunch8825]

Adam, traditionally when machining threads you reduce the depth of cut as you get deeper in the thread. I'm currently turning a 1-1/2 npt on SS and I start with an .0112 pass, and it takes 12 passes with the last pass only being a .0032" pass. This keeps the chip load equal since you're using more of the cutting edge.

[@deckum23]

Also if you set the compound at ~59.5° and feeding in with that cuts on one side of the thread instead of both sides at the same time.

[@kylegoerlitz7392]

@@deckum23 29.5 degrees. adam is not doing that here.

[@jasonjanes9756]

makes sense.

[@ThatBeTheQuestion]

Shouldn't you also start threads by first adding a chamfer to the face you start cutting into rather than cutting into a face perpendicular to the axis? That way you have a gradual introduction to the thread cut and makes it easier to thread the nut on later. It's kind of like how you always chamfer a hole before you tap it or a shaft before you cut it with a die.

[@jeshie3736]

Adam explaining the portfolio and interview thing and why a project like this is important I feel like was a piece of absolutely priceless advice.

[@honkendahlgren]

I certainly agree it’s good advice. However, what he is creating is pretty far from what he set out to make, as he says himself about 22 min in. But I guess this was also meant to show that “practice makes perfect” and it’s ok to make mistakes and learn from them.

[@dekkonot]

@@honkendahlgren being able to adapt to mistakes and still make a useful product is also an important skill to showcase!

[@lebaohuongtran5762]

@@honkendahlgren saying this from the perspective of an interviewer, sometimes able to talk about your screw up and what you have learned would actually help distinguish yourself from the rest of the candidates

[@Chance57]

Priceless? Best I can do is $3.50.

[@miketaylor00]

His advice was build something that shows that you can do what you set out to do... Then he completely screwed up and said he didn't come close to what he set out to do. So his advice was pointless. This project didn't prove the advice that he was giving.

[@willworkforicecream]

To paraphrase This Old Tony: Every piece of metal contains a part. We must simply break enough tooling to set it free.

[@Jake9066]

That's a good quote that I forgot about... time to rewatch some old ToT.

[@spargerful]

ToT explains threads a lot better, tbh.

[@lithuets]

That is a good quote. I wonder if he was inspired by Michelangelo who would state that every marble already had the sculpture, and he had to just reveal it. He would select his marble not by quality, but because of what sculpture he could see in it.

[@Alan.livingston]

Alex Blaha I think it’s a funny pisstake of exactly that.

[@claudekim7876]

Abom woulda made this in like 20 seconds tops lol. Hope adam gets there soon

[@samotnedwob8282]

idk why but i really love the camera shake whenever he puts the chunk of brass down on the table

[@BlackDuke235]

I'm so used to This Old Tony videos, the first time it happened I thought he added the shake in editing.

[@fiji2161]

Where

[@samotnedwob8282]

@@fiji2161 if you watch the video, sometimes he puts the chunk on the table

[@wolfgangsereinig5305]

Me too

[@darkmoonthedirewolf9231]

Ikr lol

[@davidcahan]

Adam's willingness to be transparent is extremely motivating. Even Adam Savage makes mistakes. Doing it on camera, showing the deep breathing he has to do to resettle his mind is quite admirable!

[@Eli-su6ql]

"I really screwed this up." ... wasn't... wasn't that the goal?

[@danielchmiel7787]

He wanted to screw this in, or screw this on

[@AstonThaRat]

Elias Styner well, he did say that it was “nut easy.”

[@JaleM]

Hahaaa

[@nelsonic84nelson25]

Nice 🤟🤟🤟🤟🐬👌👌👌👌 Don’t ask I don’t know

[@richardbadish6990]

Not when you're making Bolt! Lol

[@svoboy1]

My father taught me that when undertaking a car repair (read: undertaking *any* mechanical project.), you MUST observe the proper rituals: 1. Lose or break the proper tools. (Throwing them at the ground is also acceptable here). 2. Recite the proper cuss words in appropriate order, voice and volume. 3. Offer up some of your own blood to the project. (The mechanical deities seem to have a preference for offerings issued forth from the knuckles.). ONLY THEN will you have breathed life into your project. ONLY THEN will it become a functioning mechanism as intended. Good job in this! Loved watching!

[@almachizit3207]

The Adeptus Mechanicus has spoken!

[@JonThomas92]

The Machine Spirits must be appeased!

[@bogdan_n]

Dude, grow up! We're in the 21st century and you're still talking about deities??? Even the simplest parts (like, let's say, a piece of bar stock) have mitochondrial DNA ID systems hidden inside, and they will comply only after proper authorization.

[@digitalunity]

Back in highschool, this is how we made our Sets for drama club.

[@beatquakemusic9543]

This comment just gav me a flashback of replacing an internal Water Pump driven by the Timing Chain on a Lincoln MKX. Every time I work on a car, I look at my hands afterwards like where did these 100 cuts come from lol

[@theowenmccarthy]

You should come back to this build in like a year and try again to see how far you have progressed

[@vancemccarthy2554]

If he tries to do this again after too long, he'll be re-learning.

[@Brenryz]

@@vancemccarthy2554 I just saw on someone else's channel game footage for "Mythbusters: The Game" .. looked on Steam and it TBA release. I'm scratching my head why a proper studio hasn't released a game on this franchise alread considering the popularity of engineering / simulator games over the years. What's even funnier is the trailers have no Adam, but what appears to be Walter White from Breaking Bad lol.

[@wildflower1397]

@@vancemccarthy2554 Therein is the beauty of videotaping yourself as you work. You can go back and see not only what you did, but exactly how you did it. Simply watching your own thought process and angle of attack later on can clarify your thinking. Better yet, it can inspire creative new solutions. :)

[@markfryer9880]

@@wildflower1397 Hence, the reason why sports people have been videotaping themselves during practice and events to spot errors or new techniques. It is only now with the wide availability of video recording that tradespeople and makers are enjoying the same benefits.

[@Redfox-lt2rn]

Vance McCarthy there is still a lot he could learn though and it could help be educational to people who are learning

[@osamakheireddine9493]

I was in such a bad mood today and I came across this. This brought back memories to watching Adam as a kid. Thanks, Adam

[@donnussbaum5262]

As a kid, I thought this guy had to know everything. I grew up watching mythbusters. I really appreciate how he shows and discusses the struggles he has. Turning isn't something you pick up overnight. I've crashed a lath multiple times at high speed. It's scary. I think its awesome he is willing to learn new things and share it with the community. (Try a 4 jaw chuck on your Lathe for better accuracy of zero and for this application, Flip your jaws around.)

[@XtreeM_FaiL]

You're not a machinist unless you have crashed at least twice.

[@virgilproductions]

It’s insane how the “simplest” things can truly be the hardest and most grounding to learn

[@johnnyskellington9581]

Right?? There’s an old saying that more or less “the most brilliantly made/engineered items are the ones you never think about based on its simplicity and efficiency”. This nut and bolt are fine examples. They appear to be so straightforward and the method in which you use them is also as such, so you never give it a second though as to how they are so precision crafted and work flawlessly. So you don’t realize how much more impressive and substantial they are than they appear to be at first.

[@BoB-Dobbs_leaning-left]

Like, wearing a mask when around others during a pandemic.

[@woodyTM]

Wow. That portfolio talk was extremely well versed and has honestly made me reconstruct my thought process about how I go about my projects.

[@5punkybob]

I'm in IT and unfortunately I'm being made redundant soon but my boss (not he choice about redundancy) has said so many time when I do my resume to make sure I do t just list what I can do, but make sure I can show my future boss what I can do for his company

[@fristlsat4663]

I enjoyed the portfolio talk where he talked about demonstrating how to make something to external specifications, and then proceeded to do the opposite. That nut and bolt are nothing like the original spec. So in that regard this was a complete failure. As a skill stretcher, and as a nifty piece of desk art this was a great success.

[@nolansprojects2840]

Pierre right, what I have learned is that the best thing you can do on your resume is use technical terms to show you know the subject, and more importantly use numbers and evidence to show things you have done. For example let’s say you’ve made a software the reduced the time it took for employees to document their work. (Can you tell I’m not in IT? 😂) You then could say “created software to decrease employee documentation time by 40% per use” and that gives the new company evidence on what you have/can do. And just make a bunch of points like this. My advice is to document these achievements as you do them, that way you don’t forget such details (something I learned a little too late.)

[@shaunsanford2253]

Teachers pet... Im just joking, i truly appreciated the outlook on portfolios and knowing what you're starting with, proposed outcome, actual outcome, and how you arrived there.

[@DroidJaw]

'Everything's difficult until it's easy' is the addage that lurks over all my novice and even advanced skills. Super impressed with your tenacity and adaptability!

[@tokojose8774]

Im so happy that Adam is always honest about learning and making mistakes, and that he doesn't hug the persona of the flawless master of everything. I definitely know what a wasteland treading is when I learned it at 15 years old. Man I miss how plastic my brain was back then

[@MikesViews]

"The terrain of thread cutting is full of peaks and valleys." Har har har.

[@philstephes]

He's not wrong XD

[@constancemiller3753]

Dad jokes free with your video! 🔩

[@tbohtwentyone]

That gets to the root of the issue.

[@heyimamaker]

Lol, How many kids do you have? 😁

[@thisischuck99]

I think I appreciate this build more than any other you've done.

[@J_spec6]

I think I can agree. Something about seeing such perfect and new and shiny threading working so flawlessly, just satisfies something deep inside me

[@tested]

We'll pass that comment along. He's very proud of this build.

[@J_spec6]

@@tested that's awesome! Tell him I said hi from Georgia! 👋

[@JustinRamey3]

I completely agree with you. He does amazing work.

[@glockparaastra]

Yes, agreed. The whole time I'm just wondering how one cuts the thread inside of the nut 🤔 Nice job(s)!

[@lukaskrueger3396]

I am working as a cnc programmer and 10 years as a cnc machinist. For me, this is easy and daily work. And I must say that he is doing a great job! Very professional and accurate. Respect. If you didn't learn it, this is very difficult!

[@richbaker8211]

Adam, you've literally saved my life with these videos. I've been struggling with grief and mourning for the loss of my estranged father, as well as suicidal thoughts, all while trying to restore a drum kit (learning new skills in the process). I got greedy, rushing through the surface prepping and coming out with a terrible finish, culminating in the clear coat I was using clogging and sputtering all over the drum shell. I was beside myself, angry and bitter at the horrific mistake. I took a week away, watched some of your videos where you talked about your mistakes and skill pushing/learning. I've started reworking the drum today and I'm SOOOOO much happier with how it's going, taking the time to make sure I prep it fully. Thank you so much for all that you do!

[@diactus]

It's been a year since you made this comment - hope you're doing better, internet stranger.

[@DoGuov]

A silver lining to this quarantine is the abundance of one day builds videos that Adam has been pumping out.

[@Herr_Bone]

It took me a lot of energy to watch this one day build, because by coincidence I worked as a toolmaker for 20 years of my life. I already saw what mistakes he was about to make, and I wanted to shout "stop!" I was so sorry for him, I wanted to help him all the time. In this way, however, he was able to learn a lot the hard way, just as I had to learn other things, and hopefully will do in the future. Above all, however, you have to learn to deal with failure without giving up. And I admire Adam‘s honest handling of this process. In this video you don't really learn how to cut threads, but how to motivate yourself again and learn to live with compromises. And in the end he was satisfied with his achievements. Thanks for this video!

[@rdkitchens]

Agreed. As a machinist myself, the best thing you can do is admit your mistakes and learn from them. Every machinist screws up. It's a part of the learning process. Own it, move on, and teach the next guy how to avoid the same mistake. Make sure that they make all new mistakes.

[@ChevelleMike71]

All of this. No machinist, fabricator, or anyone else that makes stuff in one fashion or smithed was born knowing how to do this stuff. The more you learn the more you realize how little you knew to begin with. The only thing he did that made me really cringe was keeping his watch and ring on. That’s a definite no go. Oh, and running his fingers over the threads. Nope!

[@photonmixer]

@@ChevelleMike71 There's a difference between making mistakes that mean you mar your work piece, and mistakes that cost you a finger or an eye. His obvious safety lapses were very scary to watch.

[@richardkell4888]

I know exactly how you feel .... I never watch hobby machinist workshop vids, 95% have errors/ wrong approach.

[@Meatchop]

Did any bits scare you

[@darrenjarvisninja-welshman]

This takes me back to 96 as an apprentice tool maker. Collage had me make this exact excercise and it is not easy. The internal thread in particular it a real test. The clearances and machining to get just the right fit take time, concentration and patience. To atempt this with no tutor or lecturer was very brave. Congratulations to Adam on this. Bravo sir, bravo!

[@zacm.2342]

Adam: Puts down Brass chunk Camera: *_WUBWUBWUB_*

[@rocketforthree4479]

its so satisfying

[@tinwhiskerSC]

My favorite part of the episode.

[@polarvortex6496]

brass chunk: *BOMP*

[@derrickfoster644]

yes loved that part. esp the last time where he did it with such authority.

[@kennethstarr1279]

Adam should consider getting a copy of the Machinery's Handbook. It's a reference guide for all things machining. Including what diameter to drill for each thread size.

[@PatrickPoet]

He HAS to have a copy, right?

[@GrayRaceCat]

@@PatrickPoet I've never seen him refer to one, but you would think, right?

[@GrayRaceCat]

Hey Adam, you've got a Kennedy Machinists Tool Box, don't you? It's what the top center drawer is for!

[@steveattree9674]

I am more than sure he knows what a tap drill chart is as well as the formula for a 75% thread... However if he is trying to inspire the hobbyist what other better way than to make it so almost anyone can do it.... I think Adam is demonstrating a concept that people can learn and practice with... Good job Adam

[@Earthenfist]

If he doesn't have one, I will be amazed. Now, if he doesn't _use_ it, I wouldn't be so surprised.

[@joeripennings]

As a machinist, I love that you made a good representation of how skillful and hard it is to make the things that we make every day as a experienced maker. Keep on learning! Cheers

[@real_ryansama]

how does one go about going to school/ learning where to start on the path to this career?

[@joeripennings]

@@real_ryansama I'm from the Netherlands and did a study to learn how to do all of this and a lot more. My advice would be to find a apprenticeship in a machine shop. The best teachers are people with experience. It's a awesome job to have! Playing with Legos and making your own blocks ;-)

[@taylormaranell3063]

@@real_ryansama go to a cheap well known trade school near you. They have machining programs. My field at the college was in tool making. It the same as machinist degree. You can also go on haas automation on youtube here and they teach you step by step tutorials on how to run mills and lathes.

[@Abdobk]

“This is day two of our one day build”

[@GVCJarrett]

If i had nickel everytime i heard that one...

[@deepfreq]

Not with cnc tho! easy program, could write it out in note pad, easy face, shoulders, can cycle the threading portion, do 100 a day np :D brass is easy to machine compared to mild steel or stainless. fast feeds all day limited tool wear... even manually I could bang this out in half a day....

[@Dannerrrr]

@@deepfreq yeah, but that's one field of expertise. Now turn the heel on a sock in an hour. Then make an AT-AT model. Then launch a homemade rocket.

[@chadman1231]

"I don't necessarily enjoy the process, but I enjoy the process." This is such a relatable quote. I have two degrees in history, and that requires a painstaking amount of time learning how to properly research and write papers. I love it, my mind seems made for it. I love learning about how things happened and why they happened as they did. But learning how to write that down so it makes sense was a whole new animal to me in my early years. I came to find that process was difficult, but I really, truly enjoyed every second of it regardless of how difficult it was. I always wanted to get better at writing history no matter how hard it would be. This quote sums it up for me.

[@0oEo0]

Love this

[@TAGE_FPV]

@donutdoode69 HAHAHAHA

[@paul_109]

I think that's why car guys keep buying completely junk cars and repairing them while contantly cursing

[@Ev.FromMars]

Remember what This Old Tony says.... "When it comes to chamfers, there's no cutting corners".

[@jakeallan9979]

ah yes i see you're a fellow man of culture as well

[@jwl41085]

I like this.

[@tylerzeus1]

I feel like it was a real missed opportunity for the two of them to do a video together

[@jakeallan9979]

@@tylerzeus1 that would be super funny and very random

[@gldnrlygldn1320]

Yes

[@juancarlosalonzosolano1921]

Adam has been a big part of my childhood, and I look up to him as a “guru” or a very wise man in terms of building, crafting and idea planning. And watching him make mistakes because he was getting greedy or because he was a little scared of his lack of knowledge in a topic, and then learning from them is a powerful lesson. Thankyou Savage, keep on creating.

[@TheSkepticSkwerl]

I never noticed your tattoo before, having universal measurements on your forearm is truly genius.

[@nickhadfield3192]

Right so this will probably be buried, but here's my two cents on why it was grabbing so badly, given on what little I can see of how you're doing it (and it may help other people just learning, and that's what I love about the internet) When you turn a thread, by plunging the tool straight in perpendicularly to the work, the threading tool has to cut on both sides, which will chatter and grab due to cutting forces colliding. Setting the compound slide to 30 degrees from the ways and feeding on that instead of the cross slide means the tool follows one side of the v groove and only cuts on the other edge. If that's what you were doing, I apologise, and hope that this gets to someone who is just starting out. Gorgeous bolt, by the way!

[@Impuritan1]

His main problem with it popping out of the chuck after he decided to use the tail stock is he didn’t drill a deep enough hole, actually it didn’t look like he had drilled one at all, for the live center to do its job.

[@noridawheeler]

Precisely. Also, his order of operations could use a lot of improvement.

[@Ohio_etsu-masu]

This should be up there ☝

[@denny9931]

16:46 and 16:36 super scary. My armchair level advice would be to clamp the piece against a sufficiently tall chuck spider, so the tailstock can provide a lot more pressure against said spider and stabilize the part better. Center height of the tool might also be an issue after reversing it in the holder.

[@njones420]

i seem to remember is has to be a fraction less than 30 degree (ie 29.5) ... but i dont remember why :)

[@roggill6599]

Was a machinist for 50 years i remember my first set of threads turned out like Adams first try. Lol

[@benl9255]

All machinists and machine operators have been there. It's a rough path to a good part.

[@dukeandmissifan3564]

my first grade 12 lathe protect was a 2 inch thread nut and bolt out of aluminium.

[@wayneparris3439]

Next step, multi start threads :P

[@jonaskarlsson5453]

first internal thread a M60 2.0 or if it was a 2.5 and it was a dead hole guess what hapend to that thread bar the external thread wasent a problem tho

[@JasperJanssen]

“As for this guy I don’t think it really matters” is a bad sign. It looks like it needs to be the same one as the main spindle speed to me.

[@reforzar]

“You go to school on the first one.” -Jimmy Diresta Time to make the next one. 😉

[@nemo4907]

This should be in EVERY machinist handbook on page 1.

[@jimmydiresta]

👊🏼🤟🏼✊🏻

[@manthrax69]

"Learn while you earn."

[@jacobjohn378]

Adam's Glance at 18:30 is golden. He has such a wonderful attitude, while being honest about the pain. Grateful that he shares his process.

[@usefuIid10t]

When he ran his fingers on the thread when the bolt was turning, I flinched hard. A tiny burr would have shredded his money makers

[@dumdidumdumification]

Me too, Adam don't get to comfy with that machine!

[@ericchard1478]

Yeah I felt the slivers

[@gyromike1966]

My taint started crawling when I saw that...

[@mikeschmidt91]

dttp = „don‘t touch turning parts“ ✌️“I‘d like to order 5 beer 🍺“

[@chemlab5038]

had the same feeling.

[@112048112048]

"So this is day 2 of this One Day Build..." Wait, that's illegal.

[@SCM]

Police called

[@Tricknologyinc]

If the President does it, it's legal?

[@DoNE021]

It is nut legal.

[@ДмитрийМоисеенко-в5ъ]

@@Tricknologyinc Savage 2020?

[@ColtonBlumhagen]

@@ДмитрийМоисеенко-в5ъ It's a Nixon quote. It's misquoted though.

[@telecastersRthebest]

"BE CAREFUL. THIS MACHINE HAS NO BRAIN. USE YOUR OWN." Love that sticker.

[@buddersthepuunk]

AvE ?

[@300DBenz]

budders !!! Not quite, his is “No dumb zone, do not dumb here.”

[@thechumpsbeendumped.7797]

budders !!! No, he’d have a sticker saying “no fuckwits” or something just as rude.

[@DJCAntisocial]

@@buddersthepuunk Carefuling in progress, mother on speed dial ;)

[@buddersthepuunk]

He has a sticker also that says something one line of that machines are brainless and will kill you

[@nascardude86]

I’m a machinist and do this stuff every day. It’s cool to see someone step out of their comfort zone and figure something like this out . Good job !

[@MrKeenanTorrence]

That moment when he screws it together for the first time is possibly the most satisfying thing I've ever seen 😂 Adam is a national treasure

[@stevenbiedrzycki7046]

I love how you verbalize your process in determining order of operations. I struggle severely with this in almost every project I start. I can do the steps individually with confidence but putting them in the correct order is sometimes like trying to read a foreign language I have no experience with. It's encouraging to see someone as experienced as you talking things out the way I have to as well.

[@milivojdelic2566]

As someone who actually went to school for machinists (CNC though), and since it was a long time ago i won't be so technical, but you should really not take your workpiece out of the jaws that often. you're gonna mess the center of the piece and your nut is gonna be crooked. Interesting build, nevertheless. Love from Croatia

[@theseewolf8800]

Can confirm.

[@LeoBego]

I would say that it's a matter of keeping your center holes as reference during the lathe work. If you have a center-holes in each face of the cylinder, you can always center the part you are machining by using the tailstock and a dial indicator.

[@cyberslick18]

@@LeoBego Or just don't take the part out constantly lol

[@DJFlorilu]

​@@LeoBego You'll still have some differences though, with hard jaws it can be like 1-2/10 of a millimeter. With soft jaws, which are turned to the diameter of the workpiece, you can get it to 1-3/100 of a millimeter. If you really want to keep tolerances tight, then you should never take out the workpiece at all. If you are just doing lathe work for fun, the center holes will do it. If you are in the engineering industry, like I am, you have to really think about how often you want to take out the workpiece. The more often you take it out and put it back in, the more chances you have to mess it up.

[@bryanshortall787]

A good point. He should also have a dial indicator so he can properly center the workpiece in the chuck each time. Watching several other machining videos, it's normal for it to take quite a long time to tighten the jaws, check the runout, modify the jaws, check runout again, modify, check, etc... until the level of runout is acceptable for the work they're doing. Eyeballing the center once and running with it seems like bad practice once a true center on the workpiece has already been established. Good enough for an artistic bolt, but probably not quite good enough for a machining course. Still a cool project! Always great to see videos that show you the screw-ups as much as the successes. Helps everybody learn!

[@MiniNoahTheWorm]

He's so positive, even when he messes up. Would love to have his mentality

[@Crusader1089]

If you watch other videos he talks candidly about how in the moment he still feels like crap, he feels all the demons eating at him, he hears the thoughts of "Why should anyone listen to you? When you screw up like this?" thoughts I think we've all dealt with at times. The important thing is that he doesn't let those thoughts win, he comes out the other side. But its important to remember those thoughts happen. Pretending they don't happen can lead to even darker places.

[@kiloton1920]

It’s an act

[@iamthegreatest861]

@@kiloton1920 Him being positive you mean?

[@kiloton1920]

@@iamthegreatest861 yes

[@iamthegreatest861]

@@kiloton1920 What makes you think that?

[@allclades]

Ratchet and clank flashbacks... God I loved those games.

[@OgunKilik]

Dang I just got a burst of nostalga form this comment

[@momatotsosrorudodi]

I can still hear the sound when you pick them up.

[@J_spec6]

Hope y'all are ready to play the next one on the PS5!

[@allclades]

@@J_spec6 I swore I wouldn't but a ps5 until a few years after release... Of the R&C game is good then I may have to get it just for that. Plasma whip please

[@SnickleRick309]

I actually thought he referencing the games when I saw the thumbnail.

[@troywahl9731]

You mentioned seeing one's limitations when polishing the brass, I feel your pain. I just hand polished brass through the sequence of 320, 800, 1000, 1500, 2000, and 3000 grit sandpapers against an engineering reference stone to get a flat surface. It was very instructive on how clean one has to keep everything, and how even one's hand pressure needs to be... You may not have enjoyed when things went wrong on this build, but the fact that you did not hide your frustration is both humbling (to me) and a useful reminder that things go wrong no matter who you are. I just had a bad day where things went very wrong, and a person I was dealing with got very insulting. Watching this video helped brighten my day, so thank you.

[@carbon1255]

I'm surprised you take it so far on brass with sandpaper. Any particular reason you don't use the traditional polish approaches to brass? wash with soapy water, 00 steel wool, finish with a brass polish and soft cloth.

[@troywahl9731]

@@carbon1255 Perhaps I don't know about the traditional brass polishing approaches... Also, I like the effect, it produces a very flat surface if one keeps their hand pressure even (as flat as the surface one polishes against, in my case 0.0005" over an 18" surface), and if one goes a bit further the lines become so fine that they can only be seen under a microscope. Properly dressed and clean ceramic waterstones, which one can readily get up to 12000 grit, will do the same thing.

[@troywahl9731]

@@carbon1255 Hmm, I does not appear I can upload photos here. I wanted to show you what that sanding/polishing procedure produces, is there an email address I can send some to?

[@jdman0007]

The fact adam has acctually been around since ive been in kindergarden being able to keep up with him is awsome

[@jimmydiresta]

If I could offer some Constructive advice. In many of your videos I notice you leave at the most critical moments of transition like when you parted and nut from the rest of the stock or when you faced each one of the bolt head sides. ( fast fat away). Your edits tend to gloss over the most important transitional moments that I personally would love to see up close. I think it would make for a richer video imho.

[@jimmydiresta]

Well done. Good example of sticking to it. 🤟🏼

[@anonanon4109]

Ur right I’d rather have the machining than almost anything love your channel!

[@GrayRaceCat]

@jimmydiresta, I think its because Norm and the other editor (sorry I forgot your name) aren't machinists, that they skip over some of the more interesting parts.

[@xenonram]

@@GrayRaceCat I don't think norm is an editor.

[@dirtybarry7002]

He finished parting the nut with a saw, parting blade was too short for such a diameter

[@mattmays9063]

Savage, it's absolutely imperative that you get in contact with 'This old Tony' and collab something fun. He will take your lathing skills to that next level. Then when you're ready for absolutes when machining, get a hold of Abom79 for that masterclass finesse. TOT and Abom are such patient men and incredibly skilled at teaching. Give the fans that hot hot lasagna of a video :P

[@davelister2]

Adam (Abom79) is a master, not only in regards to machining, but also his videography skills, mills, lathes and shapers, always excellent quality stable shots that show exactly what he's doing. That is most definitely an Abom sized nut and bolt. Good job Savage!

[@DavidLindes]

@@davelister2 funny, I'd have thought those words all apply to ToT. :D Well, except that last bit about the size... that's definitely more Abom!

[@davebenak]

I believe Adam already knows "This Old Tony".....ref: something something regress lunar lander......don't quote me on that. But you are right about TOT and ABom. Both accomplished machinist, teachers and videographers

[@mattmays9063]

@@davebenak I know ToT sent in parts for that super accurate lander door. I just don't know the details of how they managed that. I think they put out a request to the yt community. There were literally like hundreds of yt creators that submitted something.

[@KX36]

@@davelister2 Abom eats nuts and bolts like this for breakfast. literally.

[@photomattmills]

I think the reason Adam had problems work holding when cutting the thread in the bolt was the compound was on the wrong angle. This Old Tony's thread explainer video has a pretty good detailed explanation, but basically if you're cutting threads and have it at the wrong angle (29.5º for standard threads), instead of single point cutting, you end up form cutting, which increases the forces involved by quite a lot. It also looked like swinging the compound correctly would have fixed the tool clearance issue, and given a stiffer setup overall.

[@c4fishfood]

Ya, the setup was not conventional. He started with a triangular insert on the OD threads, rather than a threading tool, which made him use a tool holder with too much stick out and put the post at that funky angle. He didn’t use a center at first, and then after he did it looks like the center wasn’t center driller deep enough to provide significant support... But he got it done!

[@Js42678]

I was going to make the same comment about This Old Tony and the 29.5 degree cross slide angle, that tip saved my butt making a cylinder rod It really helps with chatter. I love the videos Adam!

[@RightOnJonCrane]

Yes! Mrpete222 has a great series on threading too! 👍🏼

[@f.d.6667]

I guess that's the key insight here: you don't want to be your thread cutting process to turn into a form cutting operation. I think Joe P. once made a nice sketch on his whiteboard on how you "build" your thread in steps so you can keep the cross section that is removed the same in each pass...

[@sambrewer2306]

@Dcvbkyrsscbgdsxcgf thisoldtony vids

[@detroitboy65]

The most important thing I have learned by watching a 100 Adam Savage videos is it is OK to make mistakes. Even as a seasoned woodworker I still make mistakes, particularly on one-off items and first builds. There are plenty of professional machinists and builders on KZbin but not many who show their learning processes. Good on ya Savage!

[@douglasadrian138]

Adam - I really appreciate your thoughts on the "why" of what you are doing - the ability to show someone, a potential employer, the progression of an idea. This shows motivation, the creative thought process, and dedication. That really hit home with me as a teacher, something I intend to pass along to my students! Great work, keep it up!!!!!

[@blazemaster83]

I remember this feeling, threading on a lathe seemed so daunting. Once you do it a few times you get much more comfortable with it. I have also learned not to start out with my only chunk of some expensive metal to experiment with a new process, but that is how we learn! Love your vids Adam

[@leonardleong1759]

Slams giant chunk of brass on table, camera shakes - perfection

[@jeremyelphick-pooley-desig4405]

As a UK Design & Technology teacher I found this exercise, and the craftsman, inspiring and entertaining! I hope to get the chance to explore more of Adam's content asap.

[@ian-c.01]

Pretty sure I heard Abom79 and This Old Tony both saying "yup" at the same time just then !

[@JockeData]

Pretty sure both Abom and TOT would be dissapointed in Adam for not making sure everything is straight and perfect before machining. But for the purpose of educating himself i guess its alright ;)

[@ian-c.01]

@@JockeData Yeah, those with experience can see where he went wrong but then again so does Mr Savage now.

[@timhyatt9185]

Another machinist to watch is MrPete222 - he used to be a machine shop teacher, YEARS of experience and he has hundreds of machining vids.. a lot of them are on machining threads and such..

[@StephenG__s_i]

ABOM has tap and dies that size...

[@ehsnils]

Add Keith Fenner, Keith Rucker and Shurap to the list too. If those five agrees that something can't be done, then it is probably impossible.

[@Ayns.L14A]

Hi Adam, I know it might be a pain but could we see some of the actual machining (rather than time laps) in future videos please? I for one, love to watch those chips fly.

[@HelloNotMe9999]

Suggestion for a better order of operations to make this way easier: 1. Face both ends (ignoring large hole). 2. Turn to critical dimension for threads, including relief at root of shaft. 3. Cut flats in dividing head. 4. Return to lathe. Cut threads and chamfer end of bolt for easy staring in nut. 5. Turn “junk” nut to protect threads for next step. 6. Reverse part in lathe. Push bottom of bolt head tight against chuck jaws. Part off nut. 7. Chamfer edges of bolt head. Facing cut to clean top. Bolt is now complete. 8. Grip nut in lathe. Facing cut on rough side. Cut internal threads. Slight countersink of hole (for easier starts on bolt). Chamfer edge. 9. Flip nut. Facing cut, countersink, chamfer edge. Nut complete. Similar to what you did, but gives you a lot more material to grip in the chuck jaws while forming the threads. Also means that if mistakes are made, you still end up with matching sizes on the nut and bolt after cleanup of damaged faces.

[@Cinnabuns2009]

Also, for the nut, don't measure the minor diameter of the thread and make your hole that size. Size up 10-20 thousandths at least (depending on diameter). 100% thread sure can be done but no one does it and it just makes your life harder. 75%-80% thread is a good place to shoot for and about what a proper tapped hole is sized for. Great project, Adam!

[@ryansoukkala1756]

This build made me very happy. My grandfather was a machinist and made many of his own nuts and bolts for his projects. You took me right back there. I need to go turn some metal now!

[@xbunnythiefx]

When you don’t achieve what you set out to achieve, you’ve learned more than you expected to learn.

[@jbuckley2546]

Nah, you've failed. BS statement.

[@logikgr]

By Deepak Chopra and Every tech "guru"/TED speech these says

[@billdivine9501]

“Trying is the first step towards failure.” -Homer Simpson

[@AMABotelho]

This feels so genuine. I love that we see the mistakes, we see the progress.

[@bushratbeachbum]

There was huge gaps in what he showed and what he didn't. He was honest enough to say he fucked up, but not enough to show the vast majority of it

[@iandavies40]

Loved the fact that you're real with your mistakes and admit them. Feeling your frustration and exhilaration Adam - great job and thanks for the journey!

[@dcan911]

I love when a boss fails their own job interview

[@donc-m4900]

Thank you for coming in. We will call if you are selected.

[@glenncaughey5044]

Love the camera jumping each time he moves the brass stock. Like he’s saying “yes it’s heavy” 😁

[@QuiranPup]

I love how you dare to show mistakes and the emotion around it. For many starting makers, such as myself its a real hurdle to get over it

[@jasonm9264]

Putting your hand on those threads while it was spinning in the large was nerve racking. Just happy there were no burrs to catch

[@Mister_____B3_______________B3]

No worry here, since its brass and he seem to use a hss cutter, there shouldnt be burrs, and even then he seem to have clean it

[@evansn79]

"How fast should I have the lathe set for this material?" "turtle."

[@allenhanford]

I thought "turtle" was Chinese for back gears

[@wdbbrinton]

4 times the cutting speed divided by the diameter of the material (300 to 700 SPM for brass)

[@hetsmiecht1029]

Is that under the assumption that π=4?

[@joshuac6796]

@@hetsmiecht1029 nah pi is three. 12 inches per foot over pi inches per inch diameter.

[@MichaelTaylorYT]

6:00 Just casually splattered in an inconspicuous red liquid

[@jonathannagel7427]

He was applying Loctite before he even began

[@Captunn_Sanshunn]

I believe it a machining marking liquid.

[@cesaroliveira1982]

Blood for the machining gods

[@Nevir202]

Especially funny as he tore his finger open on the lathe earlier this year. 🤣

[@chrisbruggers8076]

I came down to the comments to make sure someone else had noticed that, hahaahah

[@JamesDoebbler]

When cutting threads, I was taught to set the compound just under 30° and feed with the compound instead of the cross so you're cutting with just one edge of the tool. This reduces cutting pressure and gives the chip somewhere to go.

[@fataxe1]

It's so you only cut with one face instead of two

[@hackerhelp1234]

That's when you are using angular plunge cutting. He might have found it easier to do straight plunge cutting as it means the use of a dro rather than reading off the hand wheel. Chip firm is not as much of a worry when working with softer metals

[@JamesDoebbler]

@@fataxe1 Sorry, I'm confused by your comment. Are you saying that my use of the term "edge" (referring to the tool's cutting edge) was incorrect? I would assume that if one is cutting with a "face" that would cause undesirable friction/rubbing.

[@aussiebloke609]

Exactly what I was going to post. Gotta reduce the drag from having such a long working edge.

[@JamesDoebbler]

@@hackerhelp1234 I've never heard the term "angular plunge cutting" used in this context, just plunge cutting threads which is what you're calling "straight plunge cutting". What industry are you in?

[@papapowder4465]

Great job. And as a machinist myself I can attest to the mistakes and failures that come with creating new skills and traits especially machining because you do not have any room for error and when you do find those errors like you did they can be catastrophic. I am glad that the errors that you found did not injure you or your lathe. I am also glad that you were able to take a step back and breathe and learn from said mistakes. I am always very interested to watch somebody try and learn new things when it comes to machining because I get to look back and remember the mistakes that I made when I was learning and I think that makes me better because I can watch the mistakes over again and remember my own and it kind of just keeps me in check. So thank you for going through this trial and bettering yourself because at the end of the day it better to me as well and I want to thank you for that. Really I want to thank you for everything that you do. You have been a massive inspiration to me ever since I was a kid and I continue to grow with a very similar mindset that you have instilled in me.

[@westbdabest]

I love how Adam is willing to learn something while he’s on camera and show us all the mistakes and how he overcomes them. Makes it a lot easier to go try to learn something yourself.

[@djorges]

He could have easily just plain lost the whole episode to the giant bit bucket in the sky

[@markfryer9880]

@@djorges Or he could have split this video into two parts and had a week off.

[@trialnterror]

You need to watch Joe Pieczynski’s new video on clamping parts in a three jaw chuck! He shows why you had a catastrophic failure with your 3 jaw chuck and how to avoid it? You also have in the past used steel wool to polish parts, you need to watch his video on that and how easy it is to loose a finger by piniching the steel wool between your fingers! THESE ARE A MUST WATCH FOR SAFETY IF YOUR WATCHING THIS MAKER WITH HIS LATHE WORK!!!!!!! (Ring and Watch while machining?)

[@originaljackofhearts]

The next day: "Hey Adam have you seen that big hunk of brass I have been saving?" "Adam?"

[@timtamcs9110]

I'm still a young engineer and Adam has always been a massive role model for me and the way that I approach problems. This episode in particular has helped me so much recently in solving problems on an electric go kart project. Your awesome

[@RAkers-tu1ey]

This is the reason "machinist" is an apprentice trade. It is almost impossible to teach yourself with out a huge bucket of scrap.

[@lvengineerable]

Truth. I've been trying just that and have been blown away by the difficulty of it.

[@unmachinist]

I’ve been a machinist apprentice (cnc) for two years and I feel lost all the time.

[@diggumsmack2]

Failure is always the first option and second and third. Then you swear to yourself, you'll never do those mistakes again!

[@RichieRichOverdrive]

That and tooling. If you're lucky enough to find yourself a clapped-out-as-hell Bridgeport like i have, and have a shop to put it in, tooling is expensive. End mills are expensive. Collets are expensive. Vise was expensive. I've been lucky with it, but most don't have the help i do.

[@RAkers-tu1ey]

@@RichieRichOverdrive Yeah, that is why I went into mechanics. I realized in 1973 I would never be able to afford my own shop, so I took my hand tools, and started fixing heavy equipment. When that got too grimy for me, I went into construction. All good trades, but none as challenging for a puzzle lover as prototype machine work.

[@looseleafpage5784]

Please tell me I’m not the only one that said “is that blood spatter?” when Adam introduced the dividing head...

[@alleholcomb5142]

Let's pray it's just oil 😂 but also none of us would be surprised if it was prop blood or something

[@bradley5687]

Wouldn't be surprised, in every video he seems to have a new cut on his hand.

[@TomOConnor-BlobOpera]

I think it's Red Dykem marking fluid.

[@metalinvalidmatt]

didn't he make a video not long ago explaining an accident he had with a lathe?...

[@earthboundcustoms]

@@metalinvalidmatt lol I immediately thought the same thing but if I recall correctly it was the threaded guide along the side of the lathe that he was injured by not the actual lathe chuck. Either way gives me the chills thinking about it.

[@Fangman123789]

I hereby dedicate the giant brass nut to a sorely missed, joy bringing, robo champ and brilliant mind overall Grant Imahara, even though its not my place... Thank you for the video Adam, I hope you never stop learning and doing what brings you happiness and fulfillment in life. Im just so appreciative of the positive influence you, and everybody, whom strive to share their experiences, knowledge, and good spirits with those around them have been in my life and others. We are all better people for having people like you guys in the world, it gives me hope that the many challenges we face as a species can be overcome, together. I hope you have a good one. Thanks again.

[@DaOneAndOnlyKDubb]

Adam, had this ODB went exactly to plan, with no mistakes had, I honestly believe you wouldn’t have been as happy. The reason I speculate this is like most analytical people, you truly do enjoy learning from your mistakes. For the simple fact that you LEARN from them. Case in point, had you not screwed up (pardon the pun lol) the threads on this project, you might have done it on a mission critical piece that you might have been working on for days. So to see your reactions as you progressed through this build, even though you said you were a lil upset, I could tell by your emotions that you were truly having the time of your life. And to see the end product come out as good as it did, was truly a joy for me to watch! Keep on keeping on good sir and enjoy the process!!!

[@233kosta]

In all seriousness though, thread cutting is one of those niche uses of your compound slide. You set the angle just right (I think it's half the thread angle... or just under) and feed in using the compound slide so that the tool only cuts on one side. Keeps the forces down and makes for an overall enjoyable project ;)

[@brendantennick4394]

This is how I was taught in trade school too, the only time you cut on the back of the tool is when you finish that face of the thread at the end. IThe video was cringe-worthy, but he learned as we all did and got a result lol

[@233kosta]

@@brendantennick4394 Haha, even going back to the mythbusters days, Adam never was one to just google "How to cut threads on a lathe" 😁 I respect that though, the best mistakes to learn from are your own. I suppose what we ought to keep in mind is that this whole video was about the learning process and not the huge nut and bolt. That perspective takes most of the cringe out of it

[@wayneparris3439]

30 deg

[@233kosta]

@@wayneparris3439 Ah, it's half😉 And the angle on the tool is just under 😊

[@steadyeddie7453]

233kosta- Yes, for 60 degree threads the compound is set to 30 (29.5 to be exact). And a bolt that size needs either a live center support from the tailstock or tiny cuts, like .005". I prefer both.

[@MadMorgie6318]

I love how the brass cylinder T. rexes the camera every time he sets it down.

[@GrayRaceCat]

I just wish he would stop mounting the camera to the table/machine, or use Image Stabilization, the way it sways makes me dizzy.

[@MadMorgie6318]

@@GrayRaceCat Fair, but overall he does a good job, is say, or good enough at least.

[@themueth]

Made me smile and laugh every time he did it, make me wonder if it was intentional.

[@xl000]

The error you made after 17:00 results from the thought you had at 16:17 seems like 20 thousands is about the sweet spot You didn't take into account that the contact surface between the cutter and the piece is increasing linearly with each pass. Thus the force required to cut is increasing quadratically, hence problems later.

[@kenvaughn8758]

he hasn't a clue on how to chase threads, for starters you shouldn't feed in perpendicular for threads !

[@xl000]

@@kenvaughn8758 for me, it's like planning to dig a hole at depth n with shovel of surface s, and only accounting a tube of volume n * s to be removed.. In practice, you have roughly a cone of height n and base n*n..

[@williamreed4059]

I agree. As well, i did not notice any awareness of the fact for less tool loading you use the 29.5deg set compound to cut just one side

[@williamreed4059]

These comments need to be at the top for awareness

[@moej6014]

Outside of thread rolling, does anyone know how to get threads Burr free without re-turning, re-grooving and re-threading? I have not had luck with just threading.

[@boredgrass]

Showing young people how to deal with failure by failing in front of a camera with all the feelings that go with it, despite being an accomplished successful adult and demonstrating how one can get through this. That's how you give the next generation a good start! What a wonderful teacher!

[@TeriyakiTakeout]

We’re so lucky to be able to watch Adam even after MB ended. Like, I was so sad cuz I didn’t get to hear him work anymore, and if we didn’t have KZbin, we probably wouldn’t have been able to ever again. Thanks for posting your work, Mr. Savage.

[@DungeonBricks]

The words "I make a new one" popped up in my mind

[@bigben01985]

I was looking for this comment, I knew there had to be at least one :D

[@RobertForslund]

That's awesome! 😄

[@pssnyder]

I made it 3 seconds in, saw the lathe, and instantly thought this...

[@cpt_nordbart]

Swiss ingenuity. :D

[@pointdreck]

Ah, I see your'e a man of culture as well.

[@pietrocytosis]

The only design flaw with “giant nut and bolt” is the child support you’re left paying afterwards 😕

[@thewolfateandthegoatremain2454]

Not if you bolt fast enough!

[@johndododoe1411]

@@thewolfateandthegoatremain2454 But then you don't get to enjoy the result

[@christianlewis7055]

Argh! You found the joke I was looking for! XD

[@jeremyunland]

That’s why he needed a washer!

[@DevinRay88]

Pristine!

[@lighttraveler7514]

This video truly shows the humanity involved in learning how to be a machinist on traditional manual machines. Most manufacturing CNC operators never get to experience this. Load program that an engineer wrote.. Load Part. Push button. Get result. That just doesn't have the same impact as manual machining, which is truly an art form.

[@FromTrey]

As a machinist this is brilliant lol even the simplest things can become a head ache. It's all about overcoming the issues you come across. You did a darn good job though!

[@patrickfetters6373]

Agreed. But my main issue is from engineers doing stupid crap on drawing that make no sense

[@FromTrey]

@@patrickfetters6373 Engineers always cause Machinists problems. They are book smart but very little practical experience in my opinion. At least what I've experienced in working with them.

[@GodzillaGoesGaga]

@@FromTrey Some are. Some worked through the ranks.

[@johnnym1320]

lucky he didn't knock his teeth out.

[@FromTrey]

@@GodzillaGoesGaga I'm sure some have put in work. Wish I worked with the ones who had.

[@iamzombie]

Adam, you NEED a Machinery's Handbook!

[@leowalsh7467]

He sure does...

[@Biohazarus]

As soon as he started, I was hoping he was going to read a chart to make a "real" thread

[@leowalsh7467]

He just wanted to show what his Chinese copy of a Summit Lathe would do...

[@jtdyalEngineer]

I thought the same thing, does anyone have a really really old copy, from the 1900's, they can send him

[@watcherofwatchers]

@@leowalsh7467 No, he made clear what his objectives were. You're projecting your own biases.

[@ToddCorley65]

There is an oddly satisfying aspect of the final outcome. I like how the bolt can turn freely with the nut standing on its side. That would add utility to it being a fidget toy.

[@azgarogly]

Brass has a strong odour. Generally you don't want a fidget toy made of brass.

[@MonStarNZ]

It also has a strong flavour that it leaves on your fingers :P

[@garrettstevens4383]

@@MonStarNZ I think some machining brass (all?) has a certain amount of lead added for machinability. This might go for brass house keys as well. It's supposedly at safe handling levels... choose your own adventure as far as fidgeting goes.

[@stephengooch9625]

Nice One Adam - For future reference. Nut & Bolt ratios - Bolt Diameter = Ø . Across Flats 1.5 x Ø - Bolt Head Height 0.7 x Ø - Nut Height 0.8 x Ø. The bolt end which you chamfered is normally rounded on large bolts, the radius r= Ø. The chamfer on the top of the bolt is 30° and taken only to the Tangent point of the flats. As you observed only one side of the bolt, but both sides on the nut. Thank you for sharing and taking us through your journey of thread cutting Purgatory.

[@AntimatePcCustom]

oh man. where to start... Adam. here is a few tips from a CNC operator/marine engineer. 1: start making the thread lead first before cutting the thread 2: it's ok to make a larger pinol hole to control larger parts like this. 3: measuring the inside of the thread... with a standard caliper?! my jaw dropped. you need special tool for that. or alternative. calculate your way if you cannot look it up in a chart. 4: only 2 measures for a thread? no no no no. there is SOOOO many types of angels, shapes, types, standards and so on. most standards used are made in Germany. LOADS of great types of thread for different purpose. in all sizes. last i need a little bragging right :P being a marine engineer. that's a cute size bolt :P indeed we all makes mistakes. so keep making more! and remember to have fun doing so! :)

[@kustomhooligans]

Cute size bolt? Hahahaha My shop neighbor was cutting an 8 foot by 10-12 inch screw for a torpedo reloading mechanism. And AAAALLLLLLL summer, we all heard his lathe squeeling , whistling, etc. So yeah. Ive seen the "normal" size bolts you psycho machinists make! $4,000 is an expensive piece of brass to scrap!

[@jsummers62]

The jaws on the mill’s indexing head should be removable so you can rotate them and hold larger stock.

[@dylanklingspohn9928]

He mentioned it was self-centering so it would have a scroll plate like a 3-jaw chuck so there would be a separate set of jaws that face the opposite way.

[@SmilingDevil]

What he said...

[@Flawededge]

@@dylanklingspohn9928 Ah, so the ridges on the outside of the teeth are more for holding the inside of a workpiece

[@easyboy1950]

@@dylanklingspohn9928 then the chuck would have an external set of jaws to use.

[@christophercarpenter7536]

I like watching your learning process. It made me feel a lot better about making mistakes in my own projects.

[@charleediaven6278]

Well done! having only achieved hand knurling hammer and bar handles myself, it is a skill. I have known many mechanical geniuses. My wife's father invited the Diamond Knife while working for DuPont in Delaware. In my past as a machine tech I was in their many machine shops. The ones in Wilmington had 6X6 oak beams on end for the floor. Lathes, milling machines bolted down. He was a refugee from Hungary, after the Diamond Knife he worked on other projects. As a moon light job he repaired old electric organs. The kinds that used strings, gongs etc operated by an motors. The greatest machine work I saw finished was a scale model of a WWII P47. It was the fighter flown by a Dupont. He had a real on in hanger in Toughkennon PA. The scale model had fully operating landing gear. I believe it was the first generation that the gear folded up into the wings. He quickly repaired my several MGB's. One afternoon he was winding up a new gas engine for his RC plane flown in the flats of Delaware. My wife's younger sister there with her husband a true idiot. The engine was buzzing to a whine as Steve tweaked it. The guy asked and poked his finger at the invisible whirling propeller. It small version of the scene from Indiana Jones. We all watched as his finger grew shorter. The next summer at a BBQ he got impatient with the slow start to the charcoal. He grabbed the can from his lawn tractor and pored it on the grill. Lucky or not the whole thing went whoosh, his other arm lost hair and the can shot up 50 ft. Everyone ran while he stood stupified as the can came down.

[@tedhaubrich]

My machinist friends, say, "Now do it in copper" then chuckle.

[@erickmarkon9337]

Easier to cut threads in bubble gum than copper

[@tylerreid1789]

Having made only as few extremely simple parts out of copper (generator bus bars for an aircraft), no thanks to working with copper.

[@WIPEYOURLENZ]

Copper try Inconel.

[@GeneralChangFromDanang]

Very light cuts. Light and fast. That's all I can say for copper.

[@mpetersen6]

Internal M80X4 Trapaziodal* Threads in Ampco-18. That Aluminum Bronze. 85% Copper, 10% Iron, 5% Aluminum IIRC. *METRIC acme equivilant, 30° included angle When cutting threads try mounting the tool upside and running the lathe in reverse. That way you are threading away from the chuck

[@samaker4]

Would love to hear "This Old Tony's" comment on this!

[@markusklemm4516]

Don't see him yet, but Ox Tool Co has commented.

[@brendankc3014]

He's video in this was really impressive

[@mattmays9063]

Came to make this comment. Would love to see that!

[@schannoman]

and jimmydiresta has weighed in too!

[@GTVSketchy]

Can we all just take a second to appreciate that in a project focused on creating a giant bolt... One of the hurdles/complications is a problem with a bolt? I find it slightly poetic.

[@melissa6470]

I just started an apprenticeship as a machinist, and we're doing threads on manual machines. It's been a huge challenge, but seeing you go through the same issues is really inspiring. Thank you for making this.

[@landar2372]

I appreciate the humility, we all have those moments.