I killed my $450.000 CNC | Hermle 5 axis crash

Two Z axis crashes within three weeks.
I really have been unlucky the last month and this time the bushing system, that can prevent Hermle spindles and geometry from bigger damages, was not enough to save me.
The crash killed the spindle and needed to replace.
Luckily, the Hermle support was extreme fast so that around 48h later I was able to do new chips :)
-- my video setup * --
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-----------------------------------
0:00 Introduction
2:38 the service technican arrived
3:23 Bad news
6:02 spindle change
6:25 the BLACK spindle
7:30 first chips - roughing in aluminum
Thank You for your Time!
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#CNC #Machining #fail

[@Rapbando]

CNC golden rule: always turn the feeds and rapids to 5% after any modify

[@JohnWick-qw6ec]

Words from a pro 👍

[@JohnWick-qw6ec]

Also you can run the programm in simulation, to check if there are mistakes.

[@djdatschi72]

25 % are also okay or you chose singelblock (Einzelsatz)

[@asimb.2789]

@@JohnWick-qw6ec Simulation is simulating the process not the heighth of the tool or material, thats why you need to find them and enter manualy.

[@TechTomVideo]

jup and don't program with decimal places if not needed

[@massimilianocipriani7838]

Shit happens when you work, especially in this enviroment. As we say in Italy: only the ones that do nothing all day never make mistakes.

[@iljagris7017]

The people say this not only in Italy

[@ilnullaaa]

@@iljagris7017 ...but we are the only ones using this phrase with a huge unsaid "Dio porco!" deep in our heavy hearts. Daniel, please, I need more Bavarian Diet stories. May your spindle roar safely and your endmills stay sharp! Farewell!

[@BavariaCNC]

I agree 100% with you and I think the every machinist went through something like this during his/her career

[@cliftonlewis1420]

I've never met anyone that's never made a mistake.

[@ThierryFerrari95]

@@ilnullaaa hai vinto

[@supercoe]

The word you are looking for is run-out. Great content, thanks.

[@idus]

I was thinking centricity then realized that's not a word.

[@originalbigtee]

Run out or true works.

[@oldschoolmobile]

Concentricity, or alignment of spindle to true runout zero. 👍

[@josephlapierre3407]

@@idus concentricity or eccentricity (lack of concentricity). You were on the right path.

[@BavariaCNC]

Thank you Nicholas!!

[@GIANGTHETOOL]

Thanks a lot for the all the great "dry" videos you made bro. I contributed you 1 cent for this painful replacement. Keep blowing chips.

[@owievisie]

The best tip I gave myself in the years is work like someone (which is yourself haha) is trying to sabotage you Every new programm or every additional change (like changing the Z height) run the complete programm with slow rapids and slow plunges Yes you waste maby a couple of minutes, but destroying your machine or even just scrapping 1 part will cost you more

[@Baard2000]

I agree...esspacially with feed rates of 30m/min..... I sometimes dont understand why certain movenments have to be 100 percent when time gain is low and damage can be high....

[@BavariaCNC]

Your right with that, this was a tipical example for I did it now 100 times and it will be good for the next 100 times and ten .....

[@dinesh19759]

Sorry to hear about the spindle damage, especially in present situations. Thanks for sharing what can be go wrong sometime.. When hard earned savings goes in blink of an eye... not easy to digest. However be careful in future and good luck.

[@BavariaCNC]

thank you! I hope this will be the last one for the next years :)))

[@texastad1989]

Thanks for sharing the process, long live the spindle!

[@BavariaCNC]

thank you! I hope it will be a looooong time for it.

[@daraascanio8108]

So sad to see you had to change the spindle. I will look this video 5 million times if that helps. Don’t give up, you are a great machinist ☺️

[@BavariaCNC]

thank you! im counting ;)

[@andrewut7ya511]

So.... how many times have you watched? I have seen already 430 times.

[@TurbineResearch]

I really enjoy watching your videos! Please continue to make more and I'll keep watching!

[@BavariaCNC]

thank you! I surely will ;)

[@tonisva]

We also own a Hermle machine, - The C32. Words are not enough to describe the professionalism of the maintenance crew. We had a spindle seizure, the reason unknown. Everything was fixed extremely fast, even under very difficult COVID restrictions. Honestly, Hermle Technicians can be compared to Olympic athletes in their professionalism.

[@Pidalin]

Yeah, we have italian morbidelli machines and those maintenance people (not italians, they are Czechs) can do real magic, we have several fires, one 5axis huge machine was totaly burned, like completely and they fixed it in 2 weeks. But on newer machine, everything is more complicated (like set something, modify axis or something, there is some online lock which prevents anyone from going to that settings, which is really a pain) and even maintenance people sometimes don't know what to do with that, but they will always find out and solve that at the end. After 8 years and several accidents, I can fix a lot of things by myself and sometimes you can make repair faster when you know that maintenance people need to change some part which is deep in machine and it takes a lot of time to get it out, so I will start with dissasembling it before they arrive to make it faster then and then they will just install a new part. Ofcourse I can't do this with things like spindle with cables and pressure air tubes everywhere, they need to mark it carefully to return it where it was previously, but with some parts, you can start without them, especially things which you were dissesembling like milion times and you already know. It happens often that maintenance person don't know how to dissasamble that and he has to find out first and I have documentation of parts too in .pdf on my computer, so sometimes we are working on it together to find out, they are just people and each machine is different. When I started on CNC machines, I was always shocked when I asked something a maintenance person and he was like "How can I know that? Each machine is different and I see this machine for the first time." 🙂 But now I know, each machine is really different and they don't do only CNC machines, they do everything and some modern saws or plate calibration sanders can be complicated the same as CNC machine. Ofcourse you can't do this with totaly new machine, but when you have old machine, it's mostly not a problem.

[@ezraelsensiaron4860]

I've been watching your videos before but i haven't subscribed to your channel yet. Now i will click the button so we, your viewers can help you out with that spindle crash. I love your content so keep on making chips brother!!!, keep on pushing!👊💪👆

[@philipp1861991]

@Barvaria CNC Mahlzeit und erstmal danke für deine tollen Videos 🙂. Du scheinst ja eine Maschine mit Heidenhain Steuerung zu haben und könntest über Q- Parameter die Tiefe verstellen, um manuelle Korrekturen zu vermeiden (über FN 17 könntest du es machen). Jedes Teil tasten und verrechnen geht natürlich auch. Wünsche dir noch einen schönen Tag + ein frohes neues Jahr 😀

[@capnthepeafarmer]

Thank you for sharing your learning experiences! It's very helpful!

[@BavariaCNC]

You are welcome :) !

[@ehanowski174]

Ich drücke dir die Daumen das du zukünftig von solchen Zwischenfällen verschont bleibst. Bin übrigens durch deinen Besuch bei subi performance auf dich aufmerksam geworden. Viel Erfolg mit deiner Firma und deinem Kanal!

[@BavariaCNC]

Vielen Dank! Mir reicht das jetzt auch wieder für ne ganze Weile an crashs ;) Andi ist ein spitzen Typ war richtig super bei ihm!

[@hampfi747]

Very interesting video! Thanks for being so open about it. It sucks that the crash was because of a tipping error. It may work if you set the offset not manually but with your probe so let the probe move down in z with a long distance to go until it touches and set z0. Then after the first part start the program again. If the distance to go is big enough the probe should travel further down then the first z0 to get the new z0 position 50 mm down

[@BavariaCNC]

There are tons of ways to it better then I did, I agree 100% probably I will make a video on how to do it better :)

[@cliftonlewis1420]

Hahaha. Tipping.. error. Funny funny.

[@daffyf6829]

Please do, Bavaria cnc. I saw some other great suggestions in the comments, and I'm always interested in better ways to increase confidence in a program or process. Personally I try to avoid doing anything manually like that if I can. With fanuc style controllers, you can adjust the work offset in the program with G4 L10 G91 P1 Z-25.4, or something like that. I can't recall perfectly what the code is, but that is my point: People are really good at coming up with clever ways to do things, but computers Excel at doing exactly what you tell it to do reliably. Automate everything!

[@GENcELL2014]

Depending on CAM software you could probably have the different levels of 3 parts modeled in and set toolpaths so once one level of 3 is done milling cnc pauses after the saw removes under the parts, remove parts by hand than click continue to start a surfacing and continue onto the level bellow. Considering you just machined the surface to get to the bottom of parts there shouldn't be a need to probe since machine just machined with a tool that has been measured by a tool height sensor. He messed up by having to type in a offset which opened up the possibility for human error if everything was all programmed in CAM this opportunity wouldn't have occurred.

[@James-ri3fd]

I just started in a machine shop and I am terrified to make a mistake like that. Great video and I will definitely keep watching

[@BavariaCNC]

Thank you! Now try not to miss any dots :)

[@CHIPLOAD]

ugh! glad it was repaired quite fast, would love to see the part/what actually broke... all the best, cheers!

[@BavariaCNC]

the video of the part will come as next I think :)

[@CHIPLOAD]

@@BavariaCNC thanks! looking forward to it

[@NINEWALKING]

That’s still sick machine. Loving it.

[@johannesfossi5561]

I feel ya brother, I had a a crash the other day. I'm running mainly fanuc lathes and my machine needed a new bar to work on so I was gonna put the T0404 into the MDI to be able to put the new bar against Z0. What I didnt notice was that I had mistakenly written T0404 into my program. So when I started the program and ran first operation, facing, The revolver rotated into the chuck and there was a massive bang and sparks and stuff. I also had my forehead against the window to see properly and was quiet shocked. Luckely nothing too bad happend just a wrecked Carbide drill and a holder and I was able to resume work after just resetting the turret into position. But it feels so bad when this stuff happend. But if something can happend it will happend sooner or later. Keep up the good work bro!

[@mrechbreger]

So happy with my DIY machine... you still go through all the issues / operation issues but it doesn't cost so much. My milling table has 2 custom holes init (thanks to the opensource CAM software freecad which from one day to another day changed some settings and added additional g-code headers). For X/Y I set the motors to a relativ low power and the machine will go into Fault if that happens, of course I also did that I ran into a vise.

[@chauvinemmons]

Your toolpath looks absolutely excellent there's almost no lifting of the spindle I think this is ideal good luck with the machine gods in your pocket

[@BavariaCNC]

Thank you very much!!!

[@der-andy2407]

Thx for the video! Greetings from Dresden.

[@josefk455]

As a programmer I have to say you must eliminate the human error , as far as possible. Changing offset manual multiple times in a production run is dangerous. So either automate the offset or code a small “M0” safety with text bevor the first tool that you have to double check the first chip

[@SeanHodgins]

Is there a way to set a safety boundary for your work area? Like if you enter more than X value, throw an error. Would at least catch decimal errors, but probably not others.

[@BavariaCNC]

There are ways to reduce the risk. the best way is to not do itr manually :))

[@ipadize]

@@BavariaCNC i always have the potentiometer at 0 when i start a program, when i see everything is good and the program already ran once then i just let it run.

[@ipadize]

i believe Makino has the ability to load your cad model into the program and then it will stop movement before it would collide with the part (not sure about stock though)

[@SuperYellowsubmarin]

Sorry for you ! At least you got it repaired very fast. The brochure and salesman speech is one thing, but once you've spent half a million what matters is service.

[@BavariaCNC]

I agree! and from my history i can tell that the Hermle Service is still unbeatable

[@justinwilliams5925]

I worked in aerospace as a Machine Tool maintenance technician and we had a bunch of Hermle Machines, I didn’t exactly work on them a whole lot but they’re really cool machines.

[@franz_k6000]

Wie viele Stunden hatte die alte Spindel? Mit welchem CAM Programm arbeitest du? Grüße aus dem Allgäu✌️

[@BavariaCNC]

nicht so viele, um die 3500h. die Programme kommen aus SolidCAM

[@TheExtream]

Wieso hast du den Z Nullpunkt nicht über ein makro oder ein renishaw taster versetzt? Ein M00 war ja sowieso notwendig um die fertigen teile zu entnehmen

[@bluebull1985]

ohh nooo! friction welding between tool holder and work piece is mostly not working as supposed :P was kostet ne neue Spindel mit Einbau und allem Drum & Dran wenn man fragen darf?

[@BavariaCNC]

Es wurde "nur" der Spindelkopf getauscht nicht die ganze Spindel und den alten hab ich mit 50% Preisnachlass zurück geben können. mit allen waren das um die 11.000€

[@MAINTMAN73]

What is the RPM of your spindle? I know for some Makino mag-3ex , 32,000 RPM machines that I work on quite frequently the spindle is about 75,000 plus about $5,000 for Makino to install it. They have ceramic bearings with tungsten carbide balls and rollers running inside of steel races. It's a very unique setup, but it is not tolerant to crashes at all. Once you get a slight bump and a little bit of carbide kits knocked off of one of those balls after that it's just grinding itself to death slowly but surely. By the way sweeping a spindle and coming up with four microns is just awesome! Did the technician have to shim the new spindle?

[@markmall7142]

Never nice to hear about a machine smash especially requiring a spindle change. I used one of these machines for a day or so and it is hands down the best designed machine ive used , especially once you realise how accessible the work table is . The word you are looking for is "concentricity" or spindle runout .

[@MacWave710]

new to machining, but the speeds at the end look crazy fast! How is that possible?

[@lumpygasinavacuum8449]

Use a safety drill as your 1st tool. Use this to verify heights on a new set up. It is better to break a cheap 1/8th inch drill that crash into work and damage tooling and machines. Your software can be made to double verify any large changes from the program using offsets. Things like double verify changes that are .05 or more in any offset in h values.

[@michaelkowalski3745]

Interesting...so you just have a 1/8th drill go to z0 or like z0.01 just for sanity check?

[@benjaminbergmann2607]

Das ist ja wie bei den Kennzeichen... Für jeden zweiten Crash gibt's ein gelbes Kennzeichen. Bei Hermle sinds die schwarzen Spindeln ;) Aber schön, dass es hoffentlich bald wieder neue Videos gibt von dir ;)

[@jonasg.4284]

Wo bekomme ich die Tasse her? :)

[@eviecobalt2098]

@Bavaria CNC how much does it cost to just have the Hermle tech work? That's gotta be super expensive right?

[@fabianberger5348]

Hallo :) Ich bin dualer Student und versuche derzeit mit SolidCAM einen Impeller für eine Hermle C30U zu programmieren, allerdings ohne das Impeller Modul. Hast du bereits Erfahrungen damit und kannst ggf. ein paar Tipps geben? Ich nutze für gewöhnlich nur NX und bin deshalb ein wenig aufgeschmissen...Das größte Problem liegt darin, dass beim Schruppen der Impeller-Nabe mithilfe von 3D-IMachinig und einem neuen Nullpunkt die Randbedingungen nicht stimmen. Wenn ich anstatt dessen das 5-Achs Simultanfräsen nutzen möchten klappt es nicht die Zustellung in Z zu begrenzen....Der Fräser holzt dann komplett bis auf den Grund in einer Zustellung :/ P.S.: Eine 5-Achs ist mir auch schonmal mit Vollspeed gecrasht, keine schöne Erfahrung. Hoffentlich endet die Unglücksserie von dir jetzt^^ Gruß Fabian

[@GENcELL2014]

Depending on CAM software you could probably have the different levels of 3 parts modeled in and set toolpaths so once one level of 3 is done milling cnc pauses after the saw removes under the parts, remove parts by hand than click continue to start a surfacing and continue onto the level bellow. No opportunity for human error.

[@AlexLancashirePersonalView]

Does Hermle not have crash sensors on the machine. My Okuma lathe used to have a place where you could set an overlaod prameter.

[@heronguarezi6501]

I will give you that the okuma crash routine works very well, but this machine has protection to. I was just surprised that it did so much damage on what looks kind of a soft crash.

[@freedomenergy6644]

Hello. Do use Solidcam with solidworks to program your machine?

[@BavariaCNC]

Hi! Yes I do!

[@andrzejkozicki4496]

Great video. Good luck with new spindle. Anyways did't you try to insure the machine against operator mistake?

[@BavariaCNC]

Thank you! It is but as always I hae to wait till they tell me if they cover or not.

[@derbaer1302]

Hey, warum pendelst du beim 1. Schrupp Zyklus ( die kleinen Absätze oben) aber nicht beim 2. (die Kreise)

[@iFailMW]

Bad luck, man. But still this is a valuable expirience to be focused all the time.

[@BavariaCNC]

I agree 100% this is like always a human error that could have been prevent easy

[@KongoMueller88]

Welches cam nutzt du? Wie bekommt man es hin die Maschine 2 mal zu crashen, bei solch einfachen teilen

[@wmt16]

Wow, bad luck. I am sorry for you. This is a reminder for me (hobby machinist), that machines will do whatever we tell them. Thanks for sharing and good luck. I really enjoy your videos, only 5 mio more to go ;-) haha....

[@DudleyToolwright]

Runout is the word. Your English is a hell of a lot better than my german(?) or any other language for that matter. Great narration. Sorry about the big bill.

[@BavariaCNC]

Thank you!!! I will need to continue asking for words that are pretty specific but overall it works pretty good.

[@heuhen]

we have had some crashes with CNC where I work in the wood industry. My personal worst, was a combined 3 and 5 axis Biesse. Where the product (big hardwood plate) come loose, and smashed up in the 5 and 3 axis at the same time. The house technician couldn't fix it, the service company couldn't fix it either and they had to call in specialist from Italy to come up to fix the problem. (I work in Norway btw.), some was stupid expensive, since all parts and equipment had to be sendt up from Italy, before the specialist could come. If there is one machine I know can handle a crash, it's Heian machines (Japanese). They are build simple, with big components, instead off small components. One Heian machine we had, went accidently right down in the work table. all we needed to do was tight some bolts, and zero the machine out and she was ready.

[@rampp17]

Oha... was hat der Spaß dann jetzt gekostet ca? Dank Subi Performance bin ich hier gelandet und wie er immer sagt: "Die CNC zahlt sich nicht von allein!" 😁

[@waller393]

U cant set a max z offset alarm on the controller just to make sure this doesn’t happen again?

[@noisy7825]

Muss man mit der neuen Spindel auch ein Einlaufprogramm durchgehen oder kann man direkt los legen? Lustige Geschichte am rande, wir bekamen für unsere Mazak FH8800 auch eine komplett neue spindel wegen einem radialen Lagerschaden ( bj2001) hat also lange gehalten. Beim einfahren der Spindel hat sich das Lager verabschiedet und wie sich später herausstellte befand sich ein bisschen dreck in der Ölleitung wahrscheinlich vom einbau und hat zum Schluss bei voller Drehzahl das Lager komplett zerlegt. Dann stand der Kübel fast 2wochen weil die neue spindel wurde von Japan geliefert mitten in der corona Zeit.

[@BavariaCNC]

Ja der neue Spindelkopf muss nach dem Einbau wieder durch das Einfahrprogramm durch, dauert ca 90 Minuten.Deine Story István ja nochmal ne ganze Ecke übler 😅

[@zallaun7327]

Thanks for sharing! Thinking about how to avoid this in the future: can you probe for the new offset, even though you know what it should be? It will likely be faster than manually setting the offset because you can just take off the old parts and hit cycle start with confidence, because probes won't fat-finger the offset. 🙂

[@frp1276]

I program multiple ops off a know position on the fixture. No probing necessary once you get the first position

[@gearloose703]

@@frp1276 I don't because I don't want to change spindles.

[@frp1276]

@@gearloose703 I'm not sure what you mean

[@dsfs17987]

Few years ago a customer shop had issues with their mid size 5ax Mikron mill, afair the quote for replacement spindle was 30k eur, is Hermle similar price range? I'm not 100% sure, but Mikron may have had integral spindle motor, hence the price being that high

[@BavariaCNC]

The spindle is here two parts the motor and the spindle head. So I "just" needed to exchange the head not the motor. I didnt get the inovice yet, but also I will get arounf 50% back for the old head. So I hope that it will be around 6.000€ + working time

[@dsfs17987]

@@BavariaCNC 6k sounds very reasonable

[@alexbarnett8541]

Hopefully your bad luck is over. Good luck new spindle.

[@HuskyMachining]

how much did the new spindle cost ya? I'm small fry with my 1 haas VMC but on the 2nd week of me starting my job shop 2 years ago my spindle went out and needed to be replaced and that cost me about all the saving I had so I feel ya

[@WCGwkf]

And how much was that for you? No one ever actually says what they pay when talking about it. I'm looking at buying a used vf2ss and going to be pretty upset if I ever destroy the spindle.

[@HuskyMachining]

@@WCGwkf I was worried too when it happened as I couldn't find someone to tell me what the cost would be at the end of the day to fix the spindle. I just quit my day job and only had the 1 machine so I called my local Haas dealer and they had a vf2 spindle in stock (It is the most sold machine in the states so in not too suprised). So they sent 2 guys out and they took about 4 hours to replace the spindle and the bill was just over $7000 USD

[@pirminkogleck4056]

i am curios how much is the new spindle in Bavarian Dinares ??

[@agentbenai]

7:15 Gut das du nie den Humor verlierst. Hatte leider auch schon eine Kollision mit einer Hermle. Da wurden auch nur die Stauchhülsen getauscht. Leider hatte die Spindel von dem Crash einen lagerschaden erlitten und sie lief sich nach 1 Monat fest.

[@BavariaCNC]

Du darfst da nie den Kopf in den Sand stecken denn passiert ist es in dem Moment eh schon. Am Schluss bin ich froh dass ich von Hermle einen guten Support erhalte und das ganze schnell wieder weiter geht

[@elofos0815]

@@BavariaCNC wer nichts arbeitet, macht nichts Falsch. bin kein CNC bediener/programmierer jedoch mal so aus 3d druck sicht: In deinem Fall ist einzigst zu klären, gibt es eine "software" optimierung die das ständige händische eingeben umgeht, indem du sagst, layer 1, layer 2, layer 3 usw... und die software sich das merkt ok, ich habe gerade layer 1 bearbeitet, jetzt darf ich nicht layer 3 bearbeiten ohne das mir der bediener das durch was auch immer doppelt bestätigt. Die maschine kostet soviel scheiss Geld, und solche Fehler sind eigentlich am ende irgendwo tageswerk. Würde da mal bei hermle nachfragen. bei dem CUT ist mir auch aufgefallen, die mach sehr viel "leer" fahrten, gerade in der 2ten arbeitsebene am schluss springt sie von ganz links auf ganz rechts, macht dann den vorderen rechten durchstich, springt nach hinten, kommt durch und springt nach vorne links... aus meiner sicht könnte die wenn die von links nach rechts springt, bereits auf der rückseite die die durchstiche anfangen, dir rechte seite fertig machen und von vorne dann die beiden durchstiche... spart am ende keine ahnung x sekunden an zeit, bei 20stück ok... aber bei 1000 oder mehr hast du da bereits das nächste projekt in bearbeitung während das im jetzigen programm noch läuft

[@localhawk1]

Thanks for this video.

[@mehmettemel8725]

I can imagine the feeling so I liked and subscribed.

[@BavariaCNC]

Thank you!!

[@MC-oc1ql]

Super service von Hermle Wie lange hat der Techniker insgesamt gebraucht?

[@rvarsigfusson6163]

In the oldies then it was a different between a full-stop . and a comm , Is there a different using it in measurement of this two variables. One was a millimeter and the other was a 1/1000 of a millimeter.

[@daniba73]

Hi, I saw video of your accident. I read in your videos that you use Solidcam. From what you say you crashed twice in one month! Don't you have simulation to avoid these accidents?

[@cnc-ua]

Appreciate you sharing your mistakes. Take care

[@BavariaCNC]

you are welcome and now dont do the same stuff your own :)

[@josha9620]

That’s to bad but glad u got your machine back up and running soon.

[@BavariaCNC]

Im happy it was done so quick!

[@sdfglkjhdfkjdhldskfj]

Run out, or eccentricity are both good descriptions.

[@joemattes8389]

I crashed a spindle once and the boss told me "the only person that never broke anything is the person that never did anything".

[@lvxleather]

They say once you go black you never go back. Hopefully this one holds up. I'll support your spindle replacement program by liking and subscribing 😁

[@kastrup2dk]

it hurts me to hear But it's good that you're already up to run again. I've heard and seen so many who have been out for the same I have built security into my programs to get around it I have almost only run machines with heidenheim for the last 24 years you should take advantage of the controller TNC 640 is a great controller many people don't use more than 20% of the capacity of the controller. make some safety modules (LBL) It can save you for some headaches hope you're not have more accidents from a fellow Machinist

[@m15ot49]

Was würdest von einer Hallen Tour halten ? Also wo du mal deine Maschinen, Werkzeuge, Messwerkzeuge etc vorstellst ?

[@sonvo5573]

on the c400 hemler . do we have a class scale as standard or option ?

[@BavariaCNC]

i hope i got yout right. so yes gals scales are standard

[@sonvo5573]

@@BavariaCNC that’s my dream machine , but some body said they dont have heidehain glass scales for entry level c250 and c400

[@frankf.7970]

Mal ne Fraaaage. Benutzt du nicht den Single Block beim Einfahren des Programms?😁 Zumindest bis zum ersten Span, des Werkzeug's.

[@TheLawnWanderer]

That small crash is all that was needed to break the spindle ???

[@MrEglisau]

Warum änderst du den nullpunkt manuel und gehst ihn nicht mit dem 3d taster ermitteln...wäre halt einfach prozesssicherer.

[@premiumboard21]

Hey,.. i'm wondering how much 5 axis cnc machine cost?

[@TheMcSebi]

I do(n't) want to know how many takes you did for the intro :)

[@BavariaCNC]

I stopped counting after around 8

[@superbrain3848]

Hermle Machines are mostly well tought out, i work with a C400 and a C22U. if something happens the Hermle Service is really fast and the General Support you get is outstanding.

[@bartseelen7]

That's because they only have one model in different sizes. Partly because of this, it is a very well thought-out and easy to maintain machine.

[@superbrain3848]

not really just different size, they are a bit differently laid out.

[@bloodbath91n]

Also it might just be my way of thinking but but if you're running such an expensive machine why are you manually making offsets to drop your coordinate system? just take the time to write the right program that bumps the wcs automatically so you avoid errors like this.

[@phily-ue6et]

Use a probe , works every time for adjusting z datum doing exactly what you are doing

[@alisdairherd9501]

Why isn't there a safety switch such as a circuit that is completed when the spindle touches the workpiece?

[@skliros9235]

Toyodas used to have a probe system that worked like that. But if you're rapiding, I don't think it will stop you in time before causing damage.

[@fubartotale3389]

I bought a CNC to increase the output of work from my side business making short runs and prototypes in my garage. I had never run one before. Needless to say that I crashed the machine heavily many times in those early days, much worse than your little mishap there, until I learned to run the first time through very slowly with my finger on the E stop, a good practice that I thought everyone eventually came to use. That said. my #30,000 Taiwanese machine never skipped a beat and when I retired and sold it 15 years later it was still holding its original tolerances. The machine got better the later in the day it got and got better the older it got. While it was never a Hermle grade machine, it made me money and survived me beating the living snot out of it.

[@rgfxnet]

What's the manufacturer of that machine? I am just starting.

[@g.k.4067]

Welches Cam System nutzt ihr?

[@BavariaCNC]

Ich arbeite mit SolidCAM

[@cncmanufacturingptyltd5189]

Great attitude not many people would admit they made a mistake and crashed their machine and then make a video about it. All the best from Down Under

[@BavariaCNC]

Thank you!!! thats part of the process, You only can make mistakes when you work. And im sure it happend to a lot of people they just hide it :)

[@christophercolumbus8944]

@@BavariaCNC you sure you needed a spindle? ? you sure this guy did his best?

[@BloodThunda]

If I may, I'm a cnc machinist and in my experience, I've crashed my machine quite a lot. Not big crashes like that though where my tool holder also got hurt, mostly just crashing drills and 1 roughing insert cutter. Here's what I do to prevent this, you can prevent a crash from happening by having it rapid slow for the last 25mm(by that I do not mean stare at the screen, watch your cutter, and judge by eye the last 25mm or so). I think I saw a feed & rapid feed dial on your controls? Use them when you start every operation, waste 10 - 20 seconds at the start of each new program. Watch you distances carefully. I'm quite sure if you had gone slow in the start of that program you would have noticed it would want to crash.

[@Pidalin]

I think that CNC producerts should really develop more safety elements, like laser sensors which could detect size of product and lenght of tool and such things. There are some attempts sometimes, our older Morbidelli M400 had some lasers which (if it worked) were supposed to show you where to install suckers to not hit them with the tool, but we never actually found out how it works and newer machine doesn't have anything like that anymore. So sometimes there are some attempts, but it's not exactly what you need. What is pretty much standard on these machines is sensor in tool holder which can stop machine from unloading tool when holder is occupied by other tool (yeah, it's possible to screw it like that) which is really, like really, usefull feature. Problem is that it's only on revolver magazine and new machine has wide not spinning magazine with no senser again, sensor is only in one position, so you have to be careful when you send a tool to inside magazine. They really need to develop more sensors and bumbers, some collisions could be easily prevented by simple bumber should would stop the machine if something touches it, like 90% of our accidents could be solved by bumber on 5axis spindle, the most often collision is when you forget some material on beams and then you are going to mill fron side of material and spindle will sit on that material you forgot there and yes, it happens and the worst about that is that I am used to let it there from old 3axis CNC, everything is totaly different on each machine and you can easily do something stupid. In many of CNC crash videos, I see that machine is still working even when it already crashed, that's totaly crazy, our axis and spindle have some load sensors and when you hit something, it will stop, ofcourse it will not always prevent damag, but it will at least prevend machine from going even further and keep working after crash. I hate a lot of things on our Morbidelli machines, but when I see some videos with crahes, I realize that many things are much better on our machines, like you can't hit beams with spindle while milling front side of material because machine will not let you go more down with spindle. I would already destroyed if machine didn't care, ofcourse you can't forget some material there. 😀 But we work with wood, so it will survives, it will compress that wood and stop machine before fatal damage will happen, but yeah, Z axis will probably need to be redefined after that happens, sometimes even axis B which is axis which tilts the spindle.

[@L33t3n]

I really like your english :-) I'd be happy if i was able to speak technical english this good ^^ Is there a reason why your channel is in english, though you are placed in Bavaria ? Greetings from Cologne :D

[@BavariaCNC]

I thought about changing to German, but I started my Instagram on English, so I just continued here as well with it. May be there will be videos in German at a point too

[@RobertLopez66]

Concentricity?

[@jorgevelasco5283]

Mistakes equal more experience things happen brother, brother do you recommend a 2 hand hermle machine? Regards Amazing videos

[@BavariaCNC]

I agree =) i would buy machines from the C series expect C1200 and C20 :)

[@jorgevelasco5283]

@@BavariaCNC thanks for you taking your time answering. Have amazing day

[@phillipharris8277]

Who would have thought missing a period could be so expensive!

[@ulis.1544]

Why no Bavaria cnc Basecap?

[@SE4RCHING]

Hermle has the best customer service I've ever seen! Mazak hasn't even responded since friday last week...

[@BavariaCNC]

Yes they do a great job! I actually didnt look an other machines because of that when i bought it.

[@noisy7825]

Idk about other countries but here in Aut when we call the mazak service hotline we almost never have to wait. It was just 2 times they where busy but they called us back about 10mins later.

[@carramrod8232]

Mazak in the states has incredible service. Can’t speak for outside

[@clickblol]

You can add one line for WCS Z increment at the end of your program, like (fanuc G54 ) #103=#5223, #103=#103-ΔZ, or something like this in Heidenhain control, perfectly avoiding possible manual input error.

[@bmx4ever524]

was hat die neue Spindel gekostet?

[@BavariaCNC]

also der ganze Tausch inkl. teile und Arbeitszeit 10k € netto

[@salvadorebertolone]

ugh, i'd be sick, i've been luck having never had a bad crash let alone a z axis crash. i did have a small one today, took about 5x the cut i intended to in stepover. missed an x offset but the tool took it and i caught it within a half an inch. it was material getting removed anyway. i'm ultra paranoid about z axis mishaps so i single block the first cuts of a new offset watching dtg to check the z cut as well as doing the same when a new tool has been set to validate its height as correct as well. on production runs im often running a retract height of .050" and clearance of .100. and on single part jobs im basically double that. sometimes on production i'll rapid below the model top plane if im using a tool that has a really slow plunge feed just to shave a ton of time. im super high mix, literally 1 or 2 parts is my main work, so im moving offsets a dozen times a day or more.

[@SshanIcsS]

Das kann man sowohl in Haidenheim als auch in Siemens so programmieren das es automatischen mitgezählt wird in welcher Stufe man ist. Woher ich das weiß? Es hat "nur" 3 Spindelköpfe gebraucht bis es der Programmierer lernen wollte wie es geht. Daher passiert jedem mal aber man sollte daraus früher oder später lernen.

[@heidende3933]

Excuse me: How much does it cost to replace the spindle?

[@BavariaCNC]

I "just" got a new spindle head, so the engine was still good. that was around 14000€ (+some extras)

[@PBMS123]

Why not just reset z0 with a probe and run the program again, rather than a manual adjust?

[@alisdairherd9501]

Concentricity, how aligned two circles are to the same Centrepoint.

[@PBMS123]

3:52 The word you're looking for is called "Run out". Spindle run out. That's how much out of concentricity the spindle is. Also bushing is pronounced like booshing (or like a bush, the small plant)

[@nilswagenhals7693]

Mache aktuell eine Ausbildung zum Zerspanungsmechaniker, vor sonen Situationen habe ich echt Respekt, man ist in dem Moment super machtlos.

[@jameshawkins5280]

Best too start using Q values for off set

[@chas1878]

Always check the offsets after changing them. Only 30 seconds of carefully bringing in the first tool to check if the z-height was properly set would have saved you all the time and money you wasted. People tend to take these high precision tools (that's what they are) too lightly, they are very capable of destroying themselves even with simple human errors. Respect the machine and never compromise on safety.

[@gearloose703]

When I saw his setup I immediately tough doing it this way making multiple parts from the same stock does not make sense because the precautions and offset check double triple checks will take more time than is saved.

[@elofos0815]

@@gearloose703 maybe the wrong mashine to do this job? there are a lot of scrap to make this things