Shoptalk #18 / 05-2019

[@dizzolve]

True that Saunders shop tour of your shop was really great....... thx again SG

[@crichtonbruce4329]

Stefan is one of the best presenter/teachers going. One of the best tool finds I ever had was a large number if jeweler's/silversmith's files. I have found myself using them endlessly including for fine woodworking, and keep them stored very carefully to prevent them damaging each other

[@ianpendlebury3704]

Another excellent video - the information about the climb cutting method was particularly useful.

[@iteerrex8166]

I have said this before.. This is my favorite machining channel by Far. Thanks Stefan!

[@warrenjones744]

Climb cut tip is pure gold Stefan, Bravo sir. And this was the first time I have ever seen a chip curling off in a long string while using a grooving tool for cutting like you did on the eccentric. Interesting stuff as always.

[@Gavreeli]

I loved listening to you explain how you handle your files for finish work. While I am still in the apprentice stage, I did have a good dose of filing work administered to me, lots of cast aluminum included...lol... SO seeing a master at work is extremely helpful. Thank you for the great content!!!!

[@sunside79334]

at least one who refuses to abuse centerdrills and uses NC-predrills instead. instant thumbs up.

[@stumccabe]

Thanks Stefan - beautiful workmanship as expected. I always learn something from your videos - excellent!

[@DK-vx1zc]

you sure are a master practitioner ! Love your videos Stefan. There is more than an element of art to your work

[@burntorangeak]

We will set it to a convenient number; like zero." Stefan Gotteswinter- 2019

[@StefanGotteswinter]

Doesnt get much more convenient ;)

[@aserta]

We need a t-shirt with that one.

[@Gavreeli]

Make it so, #1.

[@thefixerofbrokenstuff]

Your vice soft jaws are really slick. I just make mine out of plywood scraps and let them straddle the bottom of the dynamic jaw. Once they get boogered up I pitch them. I use Stihl chainsaw drag files when I need a 6" file to do fine work. They seem like they are a little bit harder than a normal file since they are made to file the drags on a saw chain. Best of all, they are very inexpensive. Chainsaw file handles (wooden) are also about a dollar at the feed store. I made a couple tapered reamers out of old files to make the holes fit bigger files. Keep up the good work, you are an inspiration.

[@darkosariclukendic7064]

Great tip about climb cutting over half diameter. Thank you.

[@arduinoversusevil2025]

Good chat. Thanks!

[@q12x]

Yes, definitely, very nice atelier; I followed your directions to the "Home Shop Machinist Tour" movie. Very nice.

[@samcoote9653]

Idont know how many times Ive watched this video, but I always come back to remind myself how to really use a file. I need to get a set of Valorbes. Beautiful work as always Stefan, and excellent advice on the filing tips

[@tomthumb3085]

Another brilliant video, thanks. Appreciate the tips on climb milling thin material.

[@mdhebert]

I loved the shop tour video! Thanks for that.

[@Hoaxer51]

Wow, I had to watch this one twice, I had to pay attention the second time! So much good information for a rookie. I’m glad you make these videos! Thanks.

[@davidbawden6567]

A master at work, so nice to see....

[@howder1951]

Great video Stefan, it is always a pleasure to share your knowledge, this is the strength of knowledge, sharing it! Cheers!

[@bostedtap8399]

Excellent shop talk, very interesting on the cast iron slot method, I will have to try it. Thanks for sharing and best regards from the UK.

[@sampitts7044]

Great video 👍 thanks for the show. The fine detail is always good that's what makes these the best and good explanation. Your the man.

[@Preso58]

Stefan, thanks for the tuition on climb cutting at the end. It all made sense the way you explained it. I had already watched the shop tour video. It was good to see you and your shop from someone elses perspective. I was inspired to convert a little wood cutting bandsaw to a metal cutting version after seeing how you had done it. Regards, Mark Presling

[@RaptorMachineToolCo]

Very nice episode Stefan. I also enjoyed John’s video on you and your shop thank you once again

[@peteshainin6063]

Stefan, Thank you for the wonderful education.

[@ThadEGinathom]

Thanks especially for the filing tutorial. Of course I watch machining videos for the machining, but the hand-tool skills are often left out. Always happy to see them.

[@TomChame]

Excellent from start to finish!! The visit to your shop was great, thanks for sharing.

[@MattysWorkshop]

Gday Stefan, I watched NYC CNC shop tour of you shop a while ago, amazing to say the least, you are a very talented and great to see you still have/use a shaper, almost any channel I see a shaper in I subscribe, thank you Stefan, Matty🇦🇺

[@davidcolwill860]

"Didn't drop it" Damn I need to learn that skill!

[@Smallathe]

Wonderful video!!! I LOVED the milling tips especially (I hope to use these one day). Far far behind you on expertise (or tools for that matter) - I mostly use a 6mm 4 flute HSS endmill for brass and aluminum (but I'm limited to 0.2mm steps before parts/endmill fragments start flying or my 1/4hp motor grinds to a full stop). I have used these successfully on steel and stainless too - but I try to avoid these as my tiny unimat hates it - motor rapidly overheats, 0.05mm steps tops, etc. These relatively small 6mm endmills, even HSS ones, are wonderful. I do most of my milling with 6mm roughing or smooth cutting endmills. I too have had a lot of chatter with larger endmills. You do superb work, wonderful and professional work - thank you for sharing your tips and projects!!! Saar

[@jeroen-surf]

Great video again Stefan! Your videos always give me a reason to go into my home shop and create something using my mill and/or lathe 😃

[@MegaCountach]

Great video Stephan, your knowledge is priceless! Cheers, Doug

[@paulbuckberry7683]

Thoroughly enjoyed Johns shop tour with you Stefan!

[@jrkorman]

Nice - My Dad was a machinist and that is mostly how he taught me to use a file. Been many years now! Nice idea on how to turn that cam shape!

[@brucewilliams6292]

Thank you Stefan for sharing the filing technique. I wish I had more opportunities to learn this in school but thankfully youtube is very helpful; as are you.

[@peterjones6945]

I like how calm you always seem to be. It's actually got me back in the workshop after a few very frustrating years. I've even made things to make things which have no purpose other than practice, something I haven't done since training and definitely not on a curriculam. I also like your English is English English and not American English in the main part so I don't have to 'translate to myself

[@robertklein2816]

Yes, Stefan is a "proper" Englishman, gets it from drinking Guinness and a diet of fish &chips.

[@kevdavis3207]

The first video i saw of yours was about truing up a cheap chianese chuck. A guy made a comment,, 'why waste your time on this crap?' mmm,, I watched in awe just how badly some things were and are made these days and saw that the guy who made that comment was really not into making a bad thing better, but only into spending tons of money on something that could already be improved. After all, we don't all have the monies to buy the best, do we?. Where am i going with this?. Iv'e not stopped watching your channel since. Well done Stefan. My full respect for you and your way of working. You never give up. Kev. UK.

[@fpoastro]

Not machinist but the fine details like at the end about climb cutting a tool engagement/self feed is great refresher on our CNC. Seems to matter how much you think you've got a hold on things these small reminders are invaluable.

[@kevdon269]

Good job thank you for your detailed explanation of who and why you do things it is a great help to learn more about machining. Keep up the good work Ducky

[@Just1GuyMetalworks]

Thanks, Stefan! That tip about climb milling is very helpful😊. Recently had to do a little climb milling with a milling attachment and couldn't figure out why it was actually working 🤣, now I know. Without guys like you I would be lost, thanks again 😊.

[@paulmace7910]

When you turned the plastic sheets around I thought thought you were going to leave them clamped to the block and turn the whole assembly end-for-end.

[@junglejammer1]

Great video! I wholeheartedly agree with using a file going backwards and forwards for extra control. It's amazing, how people with no clue about machine work will know that one ,"Rule" and say something about, "Sawing with a file." I tell them that I bought the file and when they start buying them, THEN, they can complain. LOL!

[@jaswats9645]

I get so mesmerized by your work and narration, I forget to like. Please forgive all my many transgressions!

[@fredgenius]

Thanks. In the age of CNC it's refreshing to see hand tools in use.

[@xenonram]

On an EDM part.

[@StefanGotteswinter]

Handfinishing a EDM part is super common in tool/die and moldmaking.

[@jn8601]

Everything so small... Huge set of caliper's lol great stuff my man thanks for sharing!

[@andreturnbull1259]

Great video. Your workmanship is terrific.

[@romo4301]

Wieder ein tolles Video 😀. Vielen Dank für die genialen Tipps und Tricks👍. Gruß Robin

[@mpetersen6]

I think this is the earliest I've ever been viewing #217 Nice work with the German Shaper That mill looks cuter than a bug's ear 👍

[@SteveSummers]

Thanks Stefan, I enjoyed the video.

[@blacksupra10]

excellent milling tip. banked that one 😊

[@bruceanderson9461]

Love the rotary broach and the technique of offsetting the chuck

[@SierraLimaOscar]

Please excuse the dumb question, but why the rotary broach? Couldn't you just shove in a regular broach of the same shape without turning the lathe on?

[@StefanGotteswinter]

Yes, you can - But it takes a few orders of magnitude more force to do so. Look up how a rotary broach works - The tool is at an angle of 1° and with it rotating its always cutting only on a very short section of its circumference.

[@SierraLimaOscar]

@@StefanGotteswinter OK! Thank you very much for clarifying - I was trying to figure it out without looking it up and failing miserably.

[@FeeeshEP3]

loving your videos Stefan, thank you for sharing

[@andistangl3425]

We still do File Flats very often with Files as a gunsmith "Büchsenmacher" in our school

[@mikelang4191]

Zero is indeed a convenient number.

[@jimsvideos7201]

"Electric Bandsaw" sounds like a pretty good name for a bunch of machinists who play home-made instruments on weekends.

[@erik....]

There's a swedish band called "Electric banana band".

[@StefanGotteswinter]

I think that would be "electric bone saw" - A guttural black metal band ;)

[@raymondmarteene7047]

Steve & seagull, best AC/DC Thunderstruck cover ever, guy plays the anvil & spoons 👍

[@rodneyjaygarrett]

Love your videos. Thanks for showing us some off your filing technique.

[@CapeCodCNC]

Great video! The shop tour was great.

[@StefanGotteswinter]

Thanks! I had a blast during the tour (and Johns stay) too.

[@capnthepeafarmer]

I love my Tsubosan files. They all come with rubber grips that are half the length of the file and are color coded. All other european or american files assume you have a wooden handle to attach to them. The Japanese files are very compact and nice for intricate work.

[@manusholm3536]

idea i have had for some time for a lathe with a vfd, if you can find a linear potenciometer on your cross slide to control the vfd you van do constant surface speed on facing and parting on a manual lathe. will need some calibration. my lathe runs 5hp motor. no vfd.

[@swojto2598]

Hi, I always enjoy your videos.With reference to the John Saunders video. I watched it when it was released. How would you comment about the way you held your hands all through the video? Stefan.

[@StefanGotteswinter]

If you are slightly over 2 meters tall and move fairly quick in a small space, you learn to keep your arms/hands at close proximity to your body, otherwise you knock shit over all the time ;)

[@markfulmer8501]

stefan- as always a very informative video- thanks

[@SharkyMoto]

i have built a mpcnc, wich is my first ever encounter with milling of any kind and with that machine, climb milling is kinda the only way to go, conventional rattles and chatters it to hell and back, climb milling is just fine. i wonder if that is because the belt driven system doesnt have any backlash?!

[@ROBRENZ]

Good stuff Stefan! Enjoyed. ATB, Robin

[@StefanGotteswinter]

Thank you Robin!

[@jeremydoblinger3609]

I always like when a part gets done and I get to do some file work.. I like file work myself.. my axes and tools that require filing are in good shape normally lol..

[@outsidescrewball]

enjoyed...great video, discussion/demonstration/build....IMO you never talk too much as you are teaching all of the time!

[@bcbloc02]

Will there be any heat treating of those cam parts?

[@noelrieusset718]

Hi Stefan, I didn't see if you needed to chamfer the edges of your PVC, in case you do some time, let me pass on a tool you can make to chamfer both sides at once, it you do not know about it. I use a piece of HSS 300 mm power hacksaw blade... After cutting one end square, (removing the radius and hole) grind a "V" into that end, leaving the sides of the blade sharp, to use as your cutting edge...Now slide the "V" along the edge in a scraping fashion, and both edges are chamfered. Thanks for the video, always love them. Noel

[@olavmsonge7552]

hallo. thanks for all Your good videos. they are very good. but something else. do you know where knuth lathe and mill are produced?

[@hadinossanosam4459]

26:14 Is there a purpose to using a six-flute endmill on plastic? I thought softer materials preferred less flutes, but I don't have any experience machining plastics

[@wizrom3046]

I wonder why you do not use vice guards on the copper jaws to reduce the chance of scratching the part? 🤔 I have vice guards made from 1mm plastic sheet bent to 90 degrees, and simple cardboard ones too. Seems like a no-brainer if you don't want to scratch the part.

[@blenz88498]

Thank you for posting this, you provided a wonderful amount of great information! One question, how did you chamfer the bottom of the t-slot, just very short strokes with the #4 file?

[@gusbisbal9803]

With the hex brouching tool, why does it have to spin for it to work? Why does the rotation of the chuck allow the cutting forces to act on the metal? The force is along the axis of the bed not apposed to the rotation of the spindle.

[@sblack48]

Interesting long tapered end mill holder. Never seen one like that.

[@StefanGotteswinter]

Thats a long-reach shrink fit holder. Its nice as it allows for very high visibility around the toolholder.

[@rickhaass1133]

very useful and informative - thanks

[@jonwatte4293]

Nice T slot block mechanism! And careful filling; very good looking! One thing, though: I was taught never to blow chips with air outside of a cabinet/enclosure. The theory is that chips go... everywhere... when you blow them. Paint grade cloths are cheap, and don't leave lint. I use them for most of my wiping. What's your experience on that?

[@StefanGotteswinter]

Yep, its not the best practice. But my shop is quite dusty anyway and its quick ;) I try to contain chips/dust as good as possible, when machining cast, I try to use a dust extractor whenever possible. As for lint free rags I recently learned: A well/often washed cotton shirt/bedsheet is darn good. Followed by microfiber rags and then cleanroom rags.

[@ianbales4155]

Another great video Stefan. It looks like you've marked your thumb to cut a Whitworth thread in it, are you turning to the dark side?

[@TheMetalButcher]

I have to disagree on climb milling. Just because over half the cutter is in the work, doesn't mean it still isn't pulling. Eg, cut a slot, switch to a larger endmill and recut. It will pull quite hard, even though the same amount of material is being taken out. I think you're able to get away with it due to the endmill being tiny. I certainly make sure I'm conventional milling with my face mill, climbing even with 75% engagement can be a recipe for disaster. With that being said, I support climb milling in a lot of instances and use it whenever possible.

[@StefanGotteswinter]

I found this technique to be useable with very large cutters too (I did this a lot when I ran a Deckel FP2 with a lot of backlash at work - 30mm roughing endmill, 30mm DOC, almost full side engagement, climb cut.) You are right, there is still a slight tendency to "climb", but I never found this to be a problem.

[@FodenS36]

For the hex broaching, why spin it and push the broach in rather than pushing it through stationary? Very interesting video as always.

[@MultiArrie]

this old tony did 2 videos about the rotary broache just a week ago.

[@FodenS36]

Thanks for the reply, I’ll check it out 👍🏼

[@dsfs17987]

HLV-H uses an eccentric stud to lock the compound rest on to the cross slide, I was somewhat surprised when I learned that, thought that it wasn't the strongest of locking mechanisms, but the French that operated the HLV-H I happened to buy on an auction, taught me otherwise - some gorilla probably used a cheater to lock the compound and tore a piece of casting out, now the compound is locked with a regular pull stud and a nut on this lathe... -.-

[@rebelliousrebel420]

18:25 thank you, I've been saying this for years

[@arnljotseem8794]

Ah, the details

[@aserta]

I use a piece of glasspaper on both jaws, that way the stack never moves on the inside.

[@bobwas4066]

excellent video!! Who makes those files? I did get the name in the video Thanks

[@donmittlestaedt1117]

Hello Stefan, I have watched your channel for about 2 years and love your work and videos. I viewed John Saunders video of his visit to your shop, very impressive. Have you lived in North America? Your use of the American version of English makes me ask. Thank you.

[@Exciting__Electronics]

Might be a stupid question but what is the point of rotary broaching, why does it need to spin?

[@raymondmarteene7047]

Thanks man, enjoyed 👍

[@derKarl_stp]

the tiny vise grips are not standard tools... they are "Gotteswinter modification style" ones ;-)

[@bigass197]

Climb cutting, dragging the file on the backstroke- are you a bad boy or something? :) Thanks for the videos. I wish our shop was as chill and even paced as yours.

[@StefanGotteswinter]

Ha, I have some very unpopular opinions machiningwise ;)

[@bigass197]

@@StefanGotteswinter Hey as long as it gets the job done, as good as the next thing, I don't care who scoffs at what I do. So here's to using the brain on your shoulders as much as anyone else's. :)

[@andyZ3500s]

Stefan I was wondering what type of extension you where using when milling the plastic sheet? I always enjoy the shoptalk videos.

[@StefanGotteswinter]

Thats a long-reach shrink fit holder.

[@swanvalleymachineshop]

Nice job on the riser block .

[@modellbautorsten9535]

Hallo Erstmal danke für das tolle Video. Diesmal habe ich wieder sehr viel von dir gelernt, obwohl du es in englisch gemacht hast. Das englische habe ich nicht so viel verstanden, aber Bilder sagen ja auch viel aus. Ich und möglicherweise andere freuen sich auch, wenn du es auch mal auf deutsch machen würdest. Was ich auch gut finde ist, wie du die Parallelunterlagen im Schraubstock auf Postion mit der Feder dazwischen gehalten hast. Toller Einfall. Ich freue mich schon auf dein nächsten Video. LG Torsten

[@5eZa]

stefan files stuff ASMR must watch 2021 satisfying machines

[@EmmaRitson]

that's excellent information, thanks

[@StefanGotteswinter]

Thanks Emma!

[@davidrule1335]

11:20 on the wire EDM I would add this is done under water.

[@aserta]

Files are a consumable item. ANYONE who starts yapping about backstroke really hasn't mastered their workshop and or isn't involved with such things in the first place. You wear a file, you buy a new one and repurpose the old one. They make excellent deburring tools once cut to the apropriate angles. And if that's too big a waste for someone, then there's also the option of recutting them using a file cutting machine. Because i can only assume someone who yaps about backdrag on a file is that anal about getting such a machine too, softening the metal, resurfacing the faces, cutting the new teeth, and hardening the file back.

[@HappyHands.]

good simple helpful info on using the file

[@1873Winchester]

I have a friend who still files things flat and to shape. He would like to "go modern" and get a shaper he says, but hard to find one in his budget. He says that modern file makers are more and more forgetting old knowledge. Such as his pet peeve of flat filing files being entirely flat, he says you cannot file a flat surface with a flat file, the human body does not work like that. What you need to file a flat surface by hand is a file that is slightly convex along it's length. That counteracts the natural movements of a human filing strokes. More or less what you said in the video. That said he orders Pferd files from Switzerland as they are one of the few manufacturers left who have the old knowledge and make files like that.

[@crazyfeller5704]

Thanks for sharing.

[@motorbreath22]

Thank you so much for that climb cutting tip will definitely help me out in the future.

[@derekwilkinson7939]

Please excuse my ignorance. Why did the lathe have to be running when broaching the hex head ?

[@666Tomato666]

the broach is tilted a bit (just few degrees) so it actually cuts just one teeth at a time

[@Minifig666]

It's a 'rotary broach', the tool is off axis from the workpiece. As the work rotates the angle means that the cutting faces move forward and back relative to the work. Makes it easier to push the tool forwards.

[@derekwilkinson7939]

Minifig666 thank you.

[@jimsvideos7201]

The short version is because the tool needs to be driven, by the workpiece; the broach rotates slightly off-center so each cutting edge acts like a chisel to form the hex. I can't see any reason why such a tool couldn't be put in a mill, driven by the spindle into a stationary workpiece.