Small stainless machining - Flux capacitor parts

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#practitioner_of_the_mechanical_arts

[@StefanGotteswinter]

I removed a small part of the video showing the final product, for compliance reasons. Don't worry, that does not alter the machining content, but I want to be on the safe side.

[@douro20]

Compliance... sounds like government work...

[@StefanGotteswinter]

@@douro20 Compliance is something absolutely common with industrial customers

[@HansWeberHimself]

@@StefanGotteswinter Compliance is industry 101.

[@nkdm87]

Please do the video about tolerances. Bitte schon! Proooszę. I know it is dry, but it's crucial...

[@dcaonoek]

What you call "a very dry topic" to me sounds like a great video.

[@imagineaworld]

Seconded

[@SmoggyTurnip]

Thirded

[@ChevySampath]

Forthed!

[@dougankrum3328]

"dry".....parched....!

[@wrstew1272]

In the states we have a show called “how it’s made” that quickly runs through some of the ways that both usual and somewhat unusual items are made. None have the details let alone the rationale that you provide. The work that you consider fun, and the tooling you make to do it is fascinating! Thanks for the work that you have put into filming and editing your “hobby “ to educate and entertain those of us who enjoy seeing a master at work!!

[@ROBRENZ]

Beautiful work Stefan! As you can see, no one cares about video length when the content is excellent. ATB, Robin

[@StefanGotteswinter]

Thanks Robin! Seems like I will stay with the long format instead of splitting it up into 3 videos.

[@adriaandavel]

Some people handle work with cranes, others with tweezers :) Definitely an example of mechanical art!

[@futten3230]

i hate being annoyed at high velocity pieces of metal impacting my skull

[@sr20ser.]

"I do not have much interest in work with large material removal or large parts." That may be the most German thing a giant German can say. Well done on the parts & video.

[@gbowne1]

Well the Germans make some of the best very large parts as well.

[@bradley3549]

@Thu Nell Ⓥ Small pp.

[@jimmurphy6095]

We can tune in to Adam or Keith if we want the bigger stuff. Very interesting presentation, Stefan.

[@thomasrappen5906]

@Thu Nell Ⓥ ;) highly precise, over engineered, and, no humor... ;)

[@thomasrappen5906]

jep, Stef is a complete different clas of guys... it's beautifull even just to listen to the videos, while I'm in the toolshop... ok, too often I have to go into the room, to repeat and see, what he did.. ;)

[@HairyNumbNuts]

I like the way you are using "microns" rather tenths or hundredths of a millimetre. Others will disagree but I find it more intuitive.

[@StefanGotteswinter]

Thats the general feedback I get, I will go for that in future :)

[@thomasrappen5906]

knew a machinst, his nickname was 'µ'...

[@NarfBLAST]

At 42:20 when you showed the aluminium sub-collet with all the featured bored in and a relief machined into the outside to make it flex and conform to the part better, I was moved.

[@brianally1531]

I enjoyed this. A special thank you to your client for providing the "what for".

[@chrisstephens6673]

Did I enjoy it, yes I did. Lengthy? The time went in no time at all. Time flies when you are enjoying yourself.👍

[@ronkennedy213]

WhooHoo a new Stefan video. Does life get any better.

[@danoneill8751]

No, no it doesn't.

[@thomasrappen5906]

@@danoneill8751 jep, life did not get better, but, another lesson learned, abd some fantastic vid to push it to the button pushers, talkinf bullshit about 1µ or 1/10 od a thou.. ;)

[@hermankrijnen6409]

Stefan, I admire not only your machining skills, but also your ability to explain so clearly what you are doing and show the tooling. I hope you will be able to continue this and teach us to work accurately.

[@leonardocorti1919]

Yessss a video about tolerances! Do it please

[@AdventureswithaVerySmallLathe]

I'd be really interested to get a better understanding of ISO tolerances.

[@erik....]

It's reasonably easy, look here for example: www.engineersedge.com/manufacturing/preferred_mechanical_tolerances_metric_iso_286_13166.htm

[@arnljotseem8794]

There is a couple of good YT videos on the topic. It is a really dry topic.

[@AdventureswithaVerySmallLathe]

@@arnljotseem8794 Thanks! I've started with FutureFab CNC & 3D Printing's "Limits, Fits & Tolerances" for starters. Let me know if you have any specific recommendations.

[@arnljotseem8794]

@@AdventureswithaVerySmallLathe Not really. I started on two , this one on " ISO fits" among them, from a fellow hobbyist: kzbin.info/www/bejne/rae5fqZod7-Xm7c but I didn't finish any of them. I instead read what Machinery's Handbook had to say about the topic, and also referenced Metal Engineering Textbook (Europa Lehrmittel) Gave me the understanding I needed

[@brianrhubbard]

It's all fun and games until you have to know GD&T. Fun but tedious.

[@paulmace7910]

Tom Liptons toothpick only hollow with an o-ring groove. Cool.

[@Rustinox]

Compared to what you do, a clock maker would be a hammer and crowbar mecanic. It's unbelievable.

[@stanstocker8858]

Excellent video. Thank you. As a recently retired clock and watch maker who makes some pretty small parts I find your videos to be absolutely top quality and inspiring. Best in all of your endeavors.

[@justinw.4433]

Camera work & lighting is great and gets better every video. Makes the TOT/GTWR vids so much more engaging than others.

[@fredgenius]

When you said '70µm drill' @43:03 I nearly had a heart attack lol!

[@emilgabor88]

Fred Genius dose 700um sounds better? I probably brake those just by looking at them...

[@fredgenius]

@@emilgabor88 Yeah, 0.7mm. Smallest I use is 0.35mm, they break if I look at them!

[@emilgabor88]

Fred Genius mie was 1mm ,the smallest that I could handle.

[@bcbloc02]

1:01:34 I don't guess it matters that the through bore interescts with the angled counterbore? These parts are well beyond my shops capabilities. Most of my machines have run out that is half the size of the hole you bored. lol

[@StefanGotteswinter]

Yes, that does not matter, its drawn that way. Almost everything you do is also beyond my capabilities ;)

[@localele1]

That 1mm deep hole drilling went easy using the "Sliding Head " function of the new lathe.Great camera work.

[@NilsJakobson]

Dont know what to say. Amazing workmanship. One of the best explained videos out there.

[@melgross]

I love 303. I’ve made a number of different, complex parts out of it. What’s good is that corrosion resistance is equal 304, the most common stainless, but machines very easily. Very easy to cut thin parts, small holes, threading, etc. A major advantage is that it just work hardens slightly.

[@bostedtap8399]

Excellent work, that Guhring boring bar is impressive, I would need a macro lens to even see it 🤔🤔. Very impressive photography. Thanks for sharing.

[@thefixerofbrokenstuff]

"Moustache sharpener" or "Smoke Grinder" or "pneumatic fluid displacement device" or even "Mechanical dog polisher" would be a good title for some of your parts.

[@StefanGotteswinter]

:D

[@2lefThumbs]

Great to see the detail on the tools you used for boring, the pin-orientation makes a lot of sense👍 It's also great that the customer allowed you to say what this particular "flux capacitor part" is actually used for👍👍

[@Hoaxer51]

There’s a lot going on in this video, nice work! This almost looks like normal sized work until you see the boring bar size next to your fingers! It puts everything in scale. Thanks for a great video! That’s two days in a row, keep them coming!

[@tritop]

als gelernter Feinmechaniker ( in den 1970ern ) ist das für mich pure Entspannung; ich bräuchte eigentlich nur noch diese Art von Arbeit in meinem letzten Lebensabschnitt und sonst nichts mehr

[@ColtaineCrows]

I've forgotten almost everything I knew about ISO tolerances, so a refresher would be nice.

[@richardbradley961]

THAT WAS FANTASTIC, ONE OF YOUR BEST VIDIO, SO WELL EXPLANED. REALY ENJOYED IT. THANKN YOU. FROM THE WINDY U.K.

[@henpemaz]

Those boring bars in the video give you an idea of just how big Stefan and his shop are 😱

[@StefanGotteswinter]

The shop is quite small - I am quite tall, haha :D

[@bfeitell]

I came pretty close guessing beam splitter. Another great video! Thank you for posting it.

[@fefifofob]

My guess would be that the price of the flux capacitors is about gram for gram equivalent with diamond.

[@KravchenkoAudioPerth]

A great method of doing the right process and procedure at the correct time. Thanks for making this video and sharing it with us Stefan.

[@AJR2208]

Thank you Stefan that was very interesting - I didn't realise it was a lengthy video until you said "lengthy video".

[@themonkeymoo]

'Sup, dawg; I heard you like collets. Seriously, though; sticking a custom collet inside the standard collet is a great idea for holding tiny parts like that.

[@FesixGermany]

I like how you say "wörk". A lesson about tolerances would be nice.

[@agapiosagapiou]

Every time I watch your videos I admire haw sharp is your tools and the precision! Nice job! I love it, clear, precise, sharp, flow less accurate. f...

[@nowar9220]

I thought his "wife" was helping hold the part 😂😂 It was his "vice"!!!😂😂😂 Love this channel!!

[@janeinarwold2663]

You should do the Oxtools toothpick challenge with a bored hole and threads inside!

[@glennstasse5698]

jan einar wold and a knurled finger grip!

[@RRINTHESHOP]

Nicely done Stefan. Love the indexing feature of the boring bar system.

[@1951split]

I find that videos about ISO hole/shaft tolerancing are often making the simple topic seem very difficult. Just search for tables with a few selected shaft/hole fits and study them for a minute. It will immediately be clear that: - lower case letters are for shafts & UPPER CASE LETTERS ARE FOR HOLES - H/h is the middle letter where for a hole the lower tolerance value is zero, and for a shaft the upper tolerance value is zero - lower letters (Aa-Gg) mean a looser fit (negative upper tolerance value for shafts, positive lower for holes) - higher letters (Jj-Ss) mean a tighter fit (positive upper tolerance value for shafts, negative lower for holes) - lower numbers mean tighter tolerances & higher numbers mean looser tolerances - tolerances grow with the size of the base dimension

[@gbowne1]

Stefan: "You guys want to see a small boring bar?" Pulls out a needle.

[@StefanGotteswinter]

Great way to start a conversation at a party.

[@gbowne1]

@@StefanGotteswinter then spend all day hoping the needle won't break off in the bore. lol

[@felixar90]

Cue Old Tony bringing a pool noodle into the shot. "One human hair"

[@301069patxe]

I am amazed by the perfection of your work. Seeing this micromachining makes me remember a very good professional stage of my life. Thank you.

[@DubsnSubsSessions]

If I take anything away from this video, it's without a doubt the perfectly used Bob Ross quote.

[@SamEEE12]

Blockbuster indeed. I learned a lot here, perhaps enough to consider reasonably changing my job title from librarian to apprentice toolmaker (or both?). The panning shot rotating around the centred radial cut was wonderful and almost like something a CNC could do which is a lesson in itself. *Smashes like button*

[@TomMakeHere]

Great video Stefan I think anyone coming here is truly interested in your detailed technical information, so the tolerance video would be a good one. I highly appreciate the experience and knowledge that you offer, it's not often I can sit through an hour long machining video Wow sounds like I'm sucking up to the teacher for extra marks lol

[@StefanGotteswinter]

Thank you!

[@MJ-nb1qn]

I also find being smacked up side the head with steel parts “reasonably annoying”! Great quote. Mind if I use it?

[@priority2]

Wow! How the heck do you bid a job like this? Incredible precision and just beautiful craftsmanship. Thanks for sharing 😊👍

[@StefanGotteswinter]

Guess the hours, add the tooling required, add 25% and hope for the best :D

[@gyrogearloose1345]

Fascinating work as always. I like the way you do it Mr G! Thanks for all the tips and good humour.

[@rodneykiemele4721]

With out a doubt, the best channel on KZbin ! Thanks a million. And it was one hour long - Awesome

[@outsidescrewball]

Awesome video.....excellent discussion/demonstration/build....really enjoyed the end of the vide as you discussed the various tooling holder alignment......ATB

[@wayneacaron8744]

bravo stefan, BRAVO a tour de force. and you seem to have granted my request for more run-time, less editing. double bravo for how well you pulled it off! poppy's workshop says HI

[@navaho5430]

Nice work, use a strong magnet to pick up small cut offs cheers.

[@StefanGotteswinter]

Unfortunately 303 stainless is not magnetic :)

[@DudleyToolwright]

Yikes! That was amazing work. It's hard enough to make big parts accurate, but the small stuff is a whole other game. Impressive work.

[@curtisvonepp4335]

Stefan nice to see your technical work comparing my work on a 72" boring Mill it's like night and day difference .😨

[@DerLaCroix1]

It's always nice how you put things into perspective... Here I am, struggling with some tricky cuts while drywalling, and meanwhile, Stefan is making some ant jacuzzis...

[@arnljotseem8794]

This makes me feel like a black smith. Love how quiet your machines run; the beauty of a VFD and no gearbox i suppose

[@StefanGotteswinter]

More like -15db on all machine noises to not blow out the ears of you, my viewers :D Plus, the clipon microphone that I use does not pick up machine noises a lot to beginn with. The Emco lathe and the Opti mill are both gearhead machines, both run very smooth at high rpm, but not exactly living room quiet ;)

[@Smallathe]

Wish I could visit your shop. Love the elegance and accuracy of your work, and the deep knowledge level you demonstrate.

[@bobvines00]

Stefan, thank you for this fascinating & educational video. Here's my vote for a video on ISO reamer specifications. Also, when you cut the slots with the 0.4mm slitting saw, how do you ensure that you get an "exact" depth of cut since slitting saws don't run particularly concentric with the spindle?

[@StefanGotteswinter]

I approached the work very slowly with the saw blade rotating, until until I got the characteristic *crrrrrk* where the saw blade makes contact for a fraction of a second and considered that my zero position, thats good enough in this case. The depth of the slot was not crazy close toleranced, its only for a springsteel clip. If I needed it more precise, I would do a shallow cut, measure the depth and then correct to final depth.

[@nikond90ful1]

Thanks for the video.

[@granander]

Obviously a man who loves his craft! Thank you for sharing!

[@youcoulduseit7492]

Love the round tool bits, Just drill a square block with the bit size, set screw, find the center of your grinding wheel hight use the table in machinery's handbook.To set the rest hight of your fixture and get the relief angle you want. just use a protractor to sharpie a mark on the rest or clamp a fence just feed straight in against the fence. you can rotate the block and grind another facet of your cutter. usually by reclamping the fence to a new angle but leaving the set screw on the block tight looking at the catalogs of ghuring and ifanger i learned a lot good to see you stefan

[@scotty362100]

Me.......YES i finally got it within 2 thou. Stefan......damn only another 1/2 micron to go!

[@Interwebstuff1]

I am another who really looks forward to your videos. I really enjoyed this one. Thank you Stefan.

[@carlf8291]

Great video

[@Just1GuyMetalworks]

Wow, nice work! Love your custom ground tooling. Was the first thing I noticed 😊. Lots going on in this video, thanks!

[@mikestabile0526]

Really enjoyed the long format video & def want a video about iso tolerances!

[@1jtolvey]

GREAT VIDEO !!!

[@ianbertenshaw4350]

That was Epic ! Plenty of good information and tips in that video Stefan ! Fantastic camera work also , I can only imagine how difficult it is to make those small parts with a camera always getting in your way !

[@CatNolara]

Very nice work, I always like the small and complex precision parts, because you need to use all your skills to get it done, sometimes even coming up with new ideas. Wonder what this will be for, propably some fluid is going to go through there. Edit: commented too fast again. That's some really interesting stuff your customer is doing there.

[@TheScaryName]

"Reasonably accurate" he says, working within 0,00 margins... I love you.

[@joeszabo4237]

Very cool Stefan, I love the micro tooling you showed. Great video, thanks!

[@nilton1044]

Who’s the 10 idiots that gave a thumbs down??? This guy is a master at small part machining.

[@Amaysing79]

Thank you for your videos. They are great I look forward to each one no matter how long are short.

[@Guzziv7Sport]

Thanks for taking the time to produce and explain the process. Great video work with closeups. Work is on the other size end from Abom79 🙂 Can you tell about the magnifier you are using ? Looks very useful. My eyes are getting old Thanks

[@StefanGotteswinter]

Most of the time, I use my dads old 8x magnifier that he used when he worked in QC. I dont know about the manufacturer, but its very nice, with a metal housing. Also nice are the small magnifiers from PEAK. Maybe easier to get is this one: www.optics-pro.com/watchmaker-s-loupe/schweizer-magnifying-glass-tech-line-10x-watchmaker-s-loupe/p,23346 Also very nice optics, real glas, no plastic lens.

[@ianpendlebury3704]

Wonderful video - fascinating and instructive. I hope the 'reference snail' in the photo at the end is ISO compliant.

[@StefanGotteswinter]

Thats definetly a metric ISO9001 compliant snail.

[@shawnhuk]

Incredibly informative, Stefan. Thank you. I have been struggling with cheap insert tooling lately. Soft carbides. I had thrown together a cheap diamond lap with a Chinese 2000 grit diamond lap. It does a nice job lapping the dull inserts sharp again, but they dull very quickly... but, I have this stack of used carbide endmills piling up. I keep them with this zany idea that I’ll have them resharpened... I assure that’s not happening... I think it’s time to take your advise and make some new carbide tooling and holders!

[@StefanGotteswinter]

Chinese inserts a a hit and miss - The ground ones for aluminium work usually quite well, with inserts for steel, I never had luck, they are probably made out of compressed street-dirt or something like that. When trying to put a edge on them, they just crumble apart. Endmills are usually a very good grade carbide, fine grain and tough.

[@shawnhuk]

@@StefanGotteswinter - compressed street dirt.... !!

[@TrPrecisionMachining]

very good video..thanks for your time

[@TheScaryName]

Dude! The amount of work you put into these parts, I hope you charge them accordingly!

[@camperlab6546]

I think you mean 'a.k.a.' an old carbide endmill, not 'i.e' an old carbide endmill. The one and only chance in my lifetime to correct Stefan.

[@bradley3549]

'I.e.' means, 'In other words'. The meaning between 'i.e' and 'aka' is pretty similar.

[@theflyingfool]

Goodness me! That must have been a *huge* snail! Thanks for a very interesting insight into the world of micro-machining!

[@flintstoneengineering]

Imperial, metric and I was just beginning to get my head around "banana for scale" Now you've thrown snail scale in the mix I'm freaking out. Conversion factor please!

[@StefanGotteswinter]

A noble metric snail or a pesky imperial snail?

[@flintstoneengineering]

@@StefanGotteswinter Metric of course, I haven't seen an imperial snail in decades.

[@mrkucz]

I didnt mind the length of video, rather enjoy, plus quit a few technique's i could use on some of my projects. Thanx 4 sharing.......

[@the_hate_inside1085]

That thing is going into the CERNS particle accelerator for sure...

[@MT75Turbo]

Those small caps at 48:24 looks just like valve clearance caps for an Old Alfa Romeo engine :D

[@adrianu5481]

Immensely enjoyable Stefan, as always. I did a lot of small detail work and it was always my favourite area. It would have been nice to have had some of the tooling you showed.

[@howder1951]

Wow, micro machining for an hour, fascinating stuff Stefan, and amazing precision techniques, cheers!

[@tmurray1972]

Excellent video with the best commentary on youtube.👌👍👏👏👊🏼

[@1AB09CC3]

@29:40 that's so simple that i wouldn't even have thought about doing it that way. i'd have used 100micron feeler gauge stock -.- thanks for this one :)

[@StefanGotteswinter]

Not my idea ;) I saw Morgan Oliff and Robin Renzetti do this on Instagram.

[@RambozoClown]

Looks like you can use a jib crane in your shop.

[@googleuser859]

It would be fantastic to see him build one without showing us then use it to move a tiny part. Then not even mention it at all as if it's a normal thing.

[@chrisstephens6673]

Perhaps use a mouse in a mouse exerciser wheel to power it.

[@hamedhashemi7951]

Stefan, number 1 machinist!

[@HeimoVN]

Truely impressive work...

[@pauldavidson6321]

Guhring make excellent carbide tooling .

[@LogonBob]

Unsubstantiated story I heard over 40 years ago. USA engineers sent to Russian engineers an example of the worlds smallest drawn wire they were so proud of. Some time passes and it came back but why... examined under a microscope they found a hole drilled in through it.

[@StefanGotteswinter]

Then they sent it to germany...and got it back with a note: "We didnt exactly know what to do, so we tapped the hole."

[@chuckphilpot7756]

Hehe just be glad you don't have to work with any pcd boring bars that small. Sandvic charges roughly $400 for a .035" BB and $500 for a .050".

[@StefanGotteswinter]

Oh yes - Even just a PCD insert can set you back quite a lot of money. Or make you a lot of money ;)

[@uberente]

at some point stefan is going to post all the flux capacitor parts, then we just need to figure out how they all fit together! mooohahahahahaa! *wrings hands evilly*

[@StefanGotteswinter]

Hmm. Or It ends up as a doomsday device..hmm..

[@capnthepeafarmer]

Stefan, have you ever considered using a microscope camera and screen over the lathe to see the part more clearly? I feel that even being as close as your camera just isn't enough. My eyes are going crossed. :)

[@StefanGotteswinter]

I played around with something like that, wasnt to happy with it. I prefer to work with a handheld magnifier. Nothing beats real optics, without a digital image processor in between the part and my eyeball. Most happens on the DRO anyway.

[@mpetersen6]

Very nice. Flux Capacitor parts? Must be for the regulation of the flow of the Pastatrons and the Futuratrons