The Archives #5 - Tubular Tube Tasks
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- Опубликовано: 17 сен 2022
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Learning from own mistakes is part of improvement, learning from others mistakes is saving money and why I'm watching those youtube videos:) Great job anyway! Thx.
Murphy always thinks ahead and preps a couple mistakes for you too.. ;-)
In the FP1 arrival thumbnail it almost looks like you're making the mill fly out of the delivery truck! When you can do that it means you've reached Stefan levels of mechanical art mastery. Your videos are always worth buckets of brass chips, thanks for sharing and take care!!
So surprised noone took the "using gauge blocks as clamp support" bait - was almost expecting to see the comments explode on that :)
Great video, as usual. Thank you!
Coffee and Stefan on a Sunday morning. Nothing better.
I don’t usually do this, but I waited until Monday morning so I could read more comments that way. Sometimes when I watch these videos when they first come out there aren’t many comments yet.
"Parts for Arts sake" .. I like it
Admitting to your own mistakes is something an experienced person does. With that said, those parts look absolutely dead sexy. Wonderful work as always.
Enjoyed watching and learning. Thanks for the look.
Stefan, your videos are great.
Superb engineering skills are so relaxing to follow.
Your patience is way better than mine despite my double the years of angers.
Your English is excellent and sometimes I laugh.
Eg: when you "dial-indicatererd" the part off camera.
Very proud to watch your tenacity.
Superb work, as always....a fascinating watch, thankyou.
Very much enjoyed this video. As always, it's like going to school watching you machine parts like these. Looking forward to your next video and that Deckle FP1 in action.
Happy New Year, Stefan!
Another fine Gotteswinter production.
Enjoyed watching as always, thank you.
Those brass parts at the end were gorgeous. Well worth the wait 🙂
Those bronze party, are seriously amazing high tech ☆☆☆☆☆
Well done Stephan .
Grtz from the netherlands Johny geerts
Excellent. I always learn at least one thing from your work. This time, I got tired counting. Thank you again!
Thank You, found this video very interesting!
Those engineers that do not wish to discuss a project with an experienced machinist, that is a sure sign of inexperience on the part of that engineer. You should of course use all knowledge available for best results. Agree on the "complicated" parts making money, it is impossible to compete with cheap mass production as a small business.
Art indeed. But far more interesting than a art gallery.
very good video stefan..thanks for your time
Very nice. I like learning the methods used. Not a machinist myself but certainly appreciate learning things. I enjoyed this video a lot.
Great work again Stefan excellent video.
Ach herrjeh! 31:30 ...... Akkuschrauber and the Gasmaske plus feeding in by hand. Lovely Setup! !!!! :D
:D
Stefan, much more interesting than watching the funeral of the Queen, and that one part is just the cookie cutter I'm looking for the holidays. I'm surprised you went full bore on the brass part and didn't make a test part of some less costly material.
nice work Stefan, late night over here in Australia, and I was looking for something to downwind to. Picked up a few nice tricks from that as well.
klasse arbeit wie immer!
That was a nice selection of machining tasks.
Awesome as usual!
A lot of interesting details.Thank you.
Unbelievably complicated! Only one mistake is remarkable, actually.
Thank you Stefan.
Stefan, you certainly do get to make some cool parts. These are really cool and I really enjoy the manual process. (I am not a CNC guy by any meansl).
Nice video, Stefan!
I have been running through a lot of your back catalogue and way hey a new one comes up. Enjoying your old stufff by the way even though i have seen them all before.
Now time for me to give you a hint. Rathervthan using abs/inc for each groove you can give each one its own coordinate as a "zero" call thr first zero 1, the second zero 2 etc. Think in terms of tool offsets on the lathe. The zero function doesn't interfere with your Abs setting but be warned the abs will alter all the zeros you have set.
Melting down te chips from all the parts and casting the 6th part would have been fun to watch 😎 Seriously though its a lot of scrap that could be melted into something usable. Nice looking parts in the end.
I sold the chips and the scrappiece back to the scrapyard, I think thats the most costefficient thing to do. :-D
Ah the good old manual power feed on the rotary... A man after my own heart.
Thanks for sharing 👍
Great video 👍 So much advice and whys you did it this way and not that way,and even your father asked why not CNC 🤭 it's only brass.
Yanking on stringy aluminum chips is THE WORST because it's not really sharp, so they'll rip your flesh rather than cutting and those kind of wounds take much longer to heal. I still manage to get myself every few years with that trick.
Yes, Stefan, though I would say that 'spindles are always in the way'.
The deep groove cylinderical part on the mill would have been super cool done in the lathe with the tool post router spindle and and carriage engaged. Like a horizontal ramp path. If the lathe can run at that low of a feed/rpm.
amazing.
Interesting. Lathe work with a blow torch. Need to remember that. Also I wonder whether you had concerns about removing the brass cylinder from the mandrel after drilling the holes? I would have thought the little drill burrs would cause removal issues at the interface of the mandrel.
Had a pile of aluminum chips I was pulling out by hand and there was one razor sharp ribbon of stainless mixed in. The stainless snagged and made a cut that went halfway around my finger. So yes, I now only use pliers or a chip hook to clean out the lathe.
Never have I wanted a customer of yours to allow you to fully spill the beans on a part this much. These parts are wonderfully weird!
Almost looks like the side shield for a GNSS positioning antenna
CNC? 'THANKS DAD! ' ;-) good ideas can come from anywhere!
Went and bought Pringles spicy chorizo chips to watch this with. I like the long format videos.
Klasse Arbeit, Stefan. Der Fog-Buster ist insoweit aber ganz gut, als er dir hilft, das re-cutting zu minimieren. Wäre vielleicht auch bei der 1mm Ball-mill ganz hilfreich gewesen. Hat auch ohne geklappt, klar, aber bei so kleinen Werkzeugen geht mir immer der Puls hoch. Liebe Grüsse aus Frankfurt👍
Super delicious awesomeness🛠
I usually resharpen the top surface of dull inserts slightly with a diamond file to get some extra life out of them :D
Don't underestimate the value of swarf. I know of at least one Ferrari bought with scrap!
Yeah, I collect some metal swarf/scrap seperate and sell it (Brass/Copper/Aluminium)
Stefan, when I order material for complicated parts I always order at least material for one extra. Larger series even a few. Otherwise I learned you have send a postcard to Mr Murphy to join the party. If you order extra you often don't use them in my experience which is nice to have in storage for a future job or recurring order. Thank you Stefan!
We do the same in electronics prototyping.... 1 to use, 1 to blow up and 1 more just in case. ;)
@@edgeeffect yeah except quantity pricing makes it 1 to use 1 to blow up 1 extra and 7 more cause 10 costs the same as 4 so why not
Damn the second guy! 😆
Damn the first guy :)
thank you, regards r.
You sound a lot like a professor I know. He is Dr. Chadoba. I work with him a little at the University of Texas at Arlington. The way you speak is very close to Dr. Chadobas speech. I recognize the German speach.
56:00 sometimes this can be hard to swallow. When your just trying to be helpful and show a better way. The Engineer may not have time to explain, or "sell" you on why they want things done in such a way.
Thanks for the explanation on a method to cut the gear teeth. Dammit now I need an indexing head for my router 😆
Do you know of any good books on machining written by German authours?Either current or classic books?
I imagine what the comments'-section would have been like, 10 years ago, and I can't help but snicker. _So much innuendo-gold here_ ... ok, brass.
Another interesting video. Thanks.
What make of Multi Fix tool post/posts are you using? Do you have the original ones or others? I’m planning on purchasing one from PW TOOLS.
I have all AXA multifix holders and toolpost.
Stefan, are you interested in buying a Carl Zeiss Jena ULM 02-600 located in Romania?
Hello, great video for diner :) Question about the face mask at 31:30 minute : is it because of the mist coolant or something else ? thanks in advance
Ahoi!
Yes, that was because of the cooleant mist. Dont want to be near it for to long without protection.
nice
Back in the day I had no CNC. I made everything manually.
I never realised that so much work went into cookie cutters!
Paul, I’d like to see the cookies they would make! Lol Probably would taste great too.
Is adjusting the run-out of a six-jaw chuck better than centering the workpiece in an independent 4-jaw chuck? A six jaw self-centering chuck is very expensive compared with a 4-jaw.
Yes, but it has 6 jaws.
I'm not sure why you're being so coy about the purpose of this device tbh, as soon as I saw you prefabulating the baseplate from aluminite, it was obvious that you were making a turbo encabulator! (admittedly, when I saw the brass part initially, I thought it was just going to be an alignable containment shroud for a flux capacitor 🤷♂️)
For some time now, I wondered about re-cycling the chips from those expensive materials. Is that done?
Yes, absolutely - I collected all chips from this project seperate and sold them as scrap.
I do that with brass/bronze/aluminium, larger shops will also do it with steel and stainless.
There is another channel here from right around the corner where I live (Clickspring ,Cairns, FNQ) who does melt down brass water armatures into molds and then uses them for making parts on his lathe. No idea if those would be to material spec then though..
Is that a ceramic tip on your dial test indicator ?
yes, that was a 3mm Zirconia sphere.
Interesting design choice for the magnetic field line convertor shrouds.
I find the shapes and arrangement of the channels for the active and passive dielectric materials quite novel.
Your client must have done a fair number of calculations in order to get the crossover thresholds of the hysteresis events
to remain in sync throughout the variations of the flux amplitudes.
I am not surprised at all, that you didn't show the ferrous cores that get inserted into the square cavities of the brass shrouds.
Their shape would have given away the purpose of what you where building and we wouldn't want certain actors to get their hands
on this kind of technology. Be safe. 😁🧡
lol
Dankeschön :-)
Stefan - have you ever found a good use of the 120 degree corner of the CCMT inserts?
There is a tool that allows you to use that angle for deburring edges and lead in tapers on shafts for smooth seal assembly.
I have a lathe tool that uses the 120° corner for facing (And the long edge for chamfering).
Fascinating video. very complex parts...
How do you evaluate how much money to charge the customer? Did a customer say "ok, that's too expensive, we will make it on our own?"
Obviously if it's a simple job like turning a simple design that's fine - but how to you calculate (in general, not actual numbers) the price?
Would it be like: Xhours of running the CNC+Expected broken/dulled CNC/lathe/endmill bits/tools +electricity bill+material cost+hour wage = final price?
I love turning brass (on my tiny lathe/mill brass and aluminum are preferred materials) but I fully agree - it's bloody expensive.
Well, I have an hourly rate that I use to quote a part.
I look at the part, guesstimate how long it will take me to machine it, make fixtures, do the cad/cam work and how expensive the material and tooling I need to order is. Add all that up, add 25% and theres your price :-)
@@StefanGotteswinter cool. Thank you!
Stefan, can you tell me your experience with drilling 954 aluminum bronze? is it difficult with large drills? thank you.
Sorry, I have no experience whatsoever with aluminium bronze, apart from some minor milling work on some Amco parts.
I made some wrist pin bushings from aluminum bronze once I don't recall it being difficult to machine. Since it is available in tubes I just bored and turned them to size but drilling the lube holes was no problem.
@@bcbloc02 thanks! I'd be drilling large diameter, deep holes. I heard its tough on HSS. tools so i'm a bit worried.
I've been wondering for a long time if there's any scrap market for chips......
yes, absolutely, they get sold back to the scrap place. Esp. with brass very important, as its expensive.
Could you use an end mill, in a grinder fixture, on the lathe, as a possible solution to the issue you mentioned? I guess that might require a fairly low spindle rpm? Wouldn't your motor controller allow that? I don't recall you describing the motor setup on your large? (My bad wenn I habe dass vermisst) M f G'n
yes, i didnt have that setup with the toolpost spindle back then - i might have used it.
My uncle and I scrapped (by committee) a large bronze blank we were cutting a 4 inch deep 2.5" double lead 3tpi internal acme thread into over a simple error in post editing, cam refused to specify a multiple lead, and we forgot to double the feed after adding the multiple lead word into the canned sentence. CNC does not suffer fools.
Ouch
Ouch :D
sounds like it's about time to set up a little foundry furnace and start casting your own brass round stock out of the chips, lol.
Suprisingly, I dont need another rabbithole do go down :D
(I sell the chips back to the scrapyard, thats very cost efficient.)
22:07 why not extending tool path to half of the tooth on the right?
That way, you can do two tooths in one pass (half of the left tooth, full in the middle, and half of the right).
Yes, that would speed up the process quite a bit - in hindsight you could probably cut 4..5 theeth at the same time.
Some kind of dish antenna feed horn?
Yeah, antenna was my thought as well. looking at that baffle thing.
It's need the "Tubular Bells" soundtrack playing in the background.
56:45 Designers that says such a thing are working in super
secret companies that are working with
very secret things or are an uneduceted assholes. Knowing your workshop is fundamental in beeing a good designer. Manufacturing is as part of a machine as design is. Great video btw.
I say that as a machinist.
@@StefanGotteswinter that is what I talking about. As I understand, some designer said that thing to You. And I think that he is wrong to not to talk to machinist.
Brass and bronze have gotten so expensive I prototype things in aluminum first, just to avoid wasting money.
Grabbing a piece of torched metal with bare hands?!?! What is your skin made of?
Its just "warm", that was enough to make it slide off the arbor
Parts are art are parts.
I likes your old intro music better, just saying
Fart buster? 30:12 😂
YESSSSS. IM FIRST!!!!!!
Congratulations, that's super awesome.
🏆🍾👏👏👏
⭐🙂👍!
More Flux capacitor parts!
They go in a delorian for sure :-)
The last thing I'd call you is a Cheapskate. I love to see people recycle tooling, repairing things, or making their own. I've worked on a garbage truck and seen how wasteful people can be. It's almost sickening. However, the one thing better than free stuff, is being paid to take it.
Are these parts on Mars?
An hour! REALLY!
Sorry
but WHAT are they for! 🤣🤣
*Psst* They are fluxcapacitor tunnels. *Psst*
@@StefanGotteswinter you've just broken the NDA 🤣
I'm kinda disappointed you did not adjusted the video length to exact 1:00.00. 🙃
That first bar was boring.
(Just a comment for yt algorithm)
those are not easy looking parts. I would never attempt manually. The industry has changed so much as cnc has become standard that in most cases it would not be possible to make money doing these parts manually
Strange that in metric, every metric engineer works in millimetres, then they change over to metres by saying microns, argh, illogical, especially to an Imperial man. Why not stick to MM and say 20 thousands? If nothing else, it would confuse the Americans.
Its all base-10-logic, just different names.
Common is mm for everything in technical terms and then breaking it down to 1/100 or 1/1000mm, but that will confuse the americans even more than microns. I used to do that and got complains that its easy to confuse it with "thou" in inch terms.
We‘re not there to please the users of inferior measuring systems. Millimeter is 10^-3 meters, Mikrometers(microns) is 10^-6 meter. There’s logic behind that. I find it quite telling that US machinists use Thou(sandth) which is 10^-3 inches when it matters, and only use fractions for bigger values.
You need to learn to count before making stupid comments.
Technically, metric engineers work in meter. The "milli" prefix stands for 1/1,000 (10 ^ -3).
Those prefixes exist for every 1,000 step (and some of the decadic steps in between if they are widely used), and "micro" ("1/1,000,000" or 10 ^ -6) is the next below "milli".
Only the ranges in between such common prefixes are then expressed in 1/10 or 1/100 fractions when needed (or given in decimals.)
Works in the other direction, too - that's how we get the kilometer (with "kilo" being the prefix for 1000, or 10 ^ 3).
en.wikipedia.org/wiki/Metric_prefix has the details of that magic.
Interestingly, American electronic engineers do work with that system. I've never heard one talking about 3/8 of an ampere, its all milliampere. Even in the US 🙂
@@bambigotclaws1504 I would be very happy if every engineer would use the International System of units (metric), but isn't 4 thou equivalent to saying 4/1000, which is also a fraction exactly like for example 3/8? Ok, it could probably be simplified as 1/250, but I guess we want to be practical and not having to calculate minimum common divisor for each measure. Eventually, it's not forbidden to say 3/8mm or 375Thou, so this is not an argument in favor/contra of Imperial compared to SI.
The fact that only US, Ingland, Liberia and partially other few countries use Imperial means they will have to switch soon or late. This is not easy task, so I wish them the best in this challenging effort.
@tre_bushett In the SI we use prefix for different multiples: ..., Tera, Giga, Mega=10⁶, Kilo=10³, milli=1/10³, micro=1/10⁶, nano, pico.... So 4 micrometer is equivalent to saying 0.000004metters or 0.004millimeters. Micron is just a short name for micrometer.
Not everything is logical neither in the SI, for example, minutes/hours/days are accepted for historical reasons.