Installing LinuxCNC on the Schaublin
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- čas přidán 20. 11. 2021
- Getting the Schaublin CNC lathes replacement brain working with the controller boards under LinuxCNC
You can also follow this retrofit here:
forum.linuxcnc.org/26-turning... - Věda a technologie
Are you serious? Target was your video is 1200. It's almost tomorrow. Wanna talk about latency? Btw, I shall finish the video tomorrow. Or next week. as soon as I am done with my epileptic seizure after so many LENOX subliminal pictures! just had a nervous brake down.
Good call :)
I spent 10 hours dicking around with the Linux set up yeasterday, and ran out of time to edit. Major latency fail.
I know my eye strain was showing up just before the end. 🤦♂️😒
Best wishes from Northern Canada.
Nicolas, whenever I see Lenox in the title of the video I go into settings and watch it at a 50% speed reduction. It makes it a little hard to understand Nick but I haven't had a seizure since.
@@MuscleCarGarage2022 :) I'll pass that on!
Great progress. Nice cameo of “Homeless”.
Thanks.
Homeless is famous now.
These videos sometimes embody what a student wrote at the end of a paper: The scope of this analysis is severely limited by my lack of understanding of what I am doing.
And I love it. It's relatable, sometimes almost too relatable.
That is a great scope which sums it up perfectly :)
Loved the Soprano analogy. I think I understand a little better now. 👍👍😎👍👍
Thank for the feeback. I got the Sopranos boxed set a few years ago and watched it right through a few times. Brilliant.
Nice sopranos analogy! I'm going to steal it if I ever find myself lecturing on microcontrollers and such again in college again.
Hope it helps. It is challenging for me to make a video about software set up interesting.
Congrats on the progress! - I love the random aircraft info/stories!
Thanks for the feedback.
Homey as well - THX for sharing
It is a classic shop dog. Hope they dont mind me "borrowing" it.
Schaublin machines are an absolute work of art. Your analogies are beautiful. Thank you.
Thanks for the feedback.
I laughed my ass off as the mob boss analogy. Partially because it was a little too perfect. Thanks for the laugh and education.
Glad you enjoyed it. Thanks for the feedback.
Hello Mark,
Sorry for the slowness to watch this video... Nicely explained the setup with the analogy of the Caporegime...
Take care.
Paul,,
Thanks Paul. I struggle to make the electronics and especially the software side interesting in viddeo.
Easy peasy man, Annie would be proud 😎
Cheers
Thanks.
Great that you were able to repair that board!
Me to. It was really nice of Stephan to trouble shoot that.
Well done on getting the MESA card fixed, and thanks go to your intrepid local helpers in allowing the series to continue without too much delay.
I must also commend you on the ample use of bootlace ferules. Too many times I see danglies just waiting to short the next control card in some other CNC conversion videos.
Oh, and the fix for the Nico problem - Make sure you only ever get invited to dinner at his :D
Hope you're not too impeded by the lockdown.
Thanks. The lockdown is now pretty normal here. My work sent us all to work frmo home a week before this latest one.
Yeah, I was really happy that Stephan stepped up to fix the 7i84. I dont have the troubleshooting skills for that.
Good to see the Schaublin going back together, after all the electronic shenanigans with the Linux CNC and control boards.
I am also pleased to make a little mechanical progress. Hard to make videos of software set up. Although there will still be plenty of set up to go.
Palm-to-face.... Linux = Lennox JUST GOT IT! Need a beer....
Have a cool one. I get a lot of comments from the pronounciation police for saying LennoxCNC.
haha now that's cleared up, can we have less flashes of things not lathes? :)
Glad you reached this point! You manage to keep our dopamine reward system active by delivering the information periodically, just in the right increment to makes us want more! :D Can't wait to see it running! :D
I look forward to that as well, but could still take another 20 or 30 episodes.
Whew! I thought I'd have to go without this afternoon. Sorry about the lockdown over there. Stay safe.
Thanks for waiting. Sorry about that delay :)
My work sent us back into teleworking last week already.
I thought the same.... but boy ... my head was spinning after the first few minutes. Videos where you keep producing metal chips are easier for me to follow. ;-) Indeed already last week one could see less and less people around in the IZD...
@@mazchen Yeah, I didn't go in last week.
Nice to see it going back together 😀
Thanks. Feels good to make a little progress.
Mounting the electronic wizbangedry on the enclosure door, a man after my own heart.
I really wanted to reclaim some space from the enormous control cabinet. Hope this works out.
Never thought I would see "Homeless" on anther channel!
Hope they dont mind me "borrowing" their dog. I gave them a link for it :)
Great to see it coming together again … looking good
It is a nicely made machine. Hope the rest of it goes back together as well as this first step.
@@RotarySMP yes a great machine worthy of a nice setup which I know you will do. Best of luck in this endeavor and looking forward to see more.
@@PWLopes9000 It is. I am trying to keep up a high standard.
I am sure NXP is still manufacturing some MC 680x0 CPUs. They are present in many emebeded systems, industrial systems and even were used in satalites recently.
In late 90s they were pretty slow by then, but still was kind of popular in things like laser printers, some network routers, telecom and broadcasting systems, some scientific instruments, and such. Now all of these use ARM (sporadically MIPS).
Thanks for that input. Controlling a gas turbines does not need a hug amount of processing power, and I am sure they were very effieciently programmed. I wonder how much recertification work GE has to do with a supplier change from say Motorola to a MXP fab for "identical" chips.
It's a great vid, you definitely have persistence and patience.
Thanks Anton. Looking forward to your Bridgeport series :)
It cracks me up that even without the watchdog wearing his safety vest I knew he was pure 100% Australian machine shop foreman.
Yeah, shop dogs are always Staffi's down under.
Thanks for the run-through. I followed your lathe thread on the LinuxCNC forum, where there are more details. LinuxCNC deserves a better analogy than The Sopranos as they were truly evil characters whose behaviour was normalized over years of TV script writing. I can't think of one though.
It would be nice if you could get a reciprocal plug from Karl, as he doesn't need the extra subs.
Thanks for the videos.
That would be nice, but Karl is in a different league. He could probably chuck up the whole Shaublin on one of his machines.
I love the contrast between exquisitely machined steel/iron and electronics. Much prefer the hardware! I am dipping my toe into this area also, making a dynamic crankshaft balancer for a ducati engine. I have a couple of accelerometers and a rotory encoder linked to an arduino. The goal is the read the out of balance shaking of the setup and identify the place to drill some steel away to balance it. I know nothing about writing code for arduino so ........... going to be a long winter......... Always love it when your videos turn up, keep it going and thanks. 😊
Sounds like an interesting project. You should post videos of it.
@@RotarySMP I really should, not sure about my video skills or presentation skills, haha. By the way my brother was a senior engineer at quantas. He has some interesting stories to tell. One was that he was tasked with getting some rodents off a plane, guess they didn't want any wires chewed. He filled it with co2 and let the staff follow their noses for a few weeks.
@@chrislee7817 Yeah, getting todents out of aircraft is challenging. Another method is to fly unpressurised at altitude with the pilots on oxgen for while. Again, finding the carcasses is disgusting.
Ok, so normally when I see the magic black smoke coming from my electronics, it pretty much a write off. Thank God I have some where to send my electronics, and a very handy friend.
Yeah, Stephan is a really knowledgable guy. He had that trouble shooting sone in about 20 minutes, despite as chatting the whole time.
I had to do maintenance work on a CNC waterjet cutter that was made by a company that has defaulted years ago (hence why I am doing the maintenance). I think they defaulted because of all the shielding and high quality connectors.
The Heidenhain stuff is consistantly the best shielding I have seen. They really dont want any EMI problems.
@@RotarySMP Similar with the machine I had to maintain. The problem turned out to be a broken cable strand to the pendant, which would send spurious commands, that overflowed the CAN bus. Anyway, the flex cable to the pendant was 110 EUR, and each single contact (milled/turned and gold plated) was 0.70 EUR, plus very expensive tools to remove and crimp the new contacts. No wonder they didn't make any money on the machine, even though it was 125k EUR originally. But everything was built to perfection, including the shielding inside the cabinet being terminated into a proper ground clamp, and hundreds of pages of cabling documentation.
@@graealex Aircraft crimps are also really expensive. Seems you need a different set of dies for nearly every connector.
They pick this option over searching for EMI going over limits somewhere while changing anything in production cycle. Wiring is cheap, while EMI designing is not if you count units to some specification on one hand :>
I don't know, i just assume that not many units were made identical, so they had excuse
@@poprawa Wiring isn't cheap, to the contrary. One of my customers produces bus components that basically exchange more expensive components vs the amount of work required to produce cabling in automation scenarios. Basically it's not the copper that's expensive, it's the time required to manage it.
CEE FOR DA WIN!!! So cool to see, You are a fan of guy&gal&dog team !
The repair projects he does are extremely interesting.
Many years ago, I struggled with the same "many monkeys on keyboard" approach to getting my first Mesa cards working with LinuxCNC - I'd used it for years but only with simple parallel port-based IO. If only I had your Sopranos analogy to help me back then ... it wouldn't have been any easier. :)
Good call :)
Nice machine, interesting video thanks for sharing
Thanks for watching.
Heidenhain's Stuff is just awesome! we did maintenance this summer and replaced 20 units with new ones, because they were over 15 years old and needed to be replaced for safety. now guess who's got a box of encoders in the basement LOL
Nice score. My Maho Heidenhain encoders are 36 years old and work perfectly. Couple of lanes of Exe died, but the scales are rock solid.
That is awesome!
Thanks for the positive feedback.
very good video rotarysmp
Thanks for the comments.
Ooooh, perfect timing, I’ve just finished stripping down my Facit C1-13 calculator 😀
I had to google that. Wow, I bet that has complicated internals. Hope you can get it back together. :)
Debugged my ESA-01 a while back. Combined mechanical and electrical gremlins
@@RotarySMP That makes two of us, luckily there is a nice chap called John Wolff that's created a complete teardown, clean, and reasembly guide that I am following.
@@davidbrown8365 I specifically avoided the later electrical models, I bidded on a 1964 model, but that went out of my budget, and the seller offered me a 1968 model in slightly better condition, with all the decimal spacers.
Here's the internals if anybody is wondering ~ czcams.com/video/JQ8T8ZvzTF4/video.html
the 68000 is the original mac, the 030 is one of the last of the family jumping up from a 16/32 bit design to a full 32 bit design and yadda yadda your looking at high end mac and amiga workstations from the early to mid 90's instead of the early to mid 80's of the OG 68K found in the first gen of mac's, amiga's, atari st's and of course sega megadrive
The Mac SE-30 was my first Apple computer. It had a slot for expansion, where I ran a color graphics board that fed a second monitor; yes a 14” color CRT next to the native 11” monochrome built in.
@@robert_g_fbg I have an SE (not mine originally) that came with a Radius expansion card and monitor, while not color it was a high res mono "full page" display (stock screen could display a half page") neat machines. Though the SE only has a 68k and of of course the 30 has a 030 which makes it oodles more fast and can handle gobs of memory.
for non mac people when I say pages, the original black and white mac's had their screen adjusted where you could hold a standard sheet of paper up to them and it would line up. Desktop publishers loved it cause it was truly what you saw is what you got on the printout, even to the point where the pixels would line up (back when brand new and well adjusted)
@@osgeld Thanks for the feedback. We had Apple IIe's at high school, but that was the last contact I had with Apple.
nice work.
Thanks for the feedback.
Love your content, and while my inlaws and nieces and nephews also hail from new Zealand, none of them would say ,"Lunn-Ox" when they mean "Linn Ux".
Is that a South island thing, or do you just say it like that to trigger pedantic gits like me?
For the record, they wouldn't say "Aksy" when they mean "Axis" either, but oddly I can live with that. I'm not sure why ;-)
Nah, I only spent a couple of years on the south island. This is what happens when a Kiwi spends 2 1/2 decades speaking german. You loose control of certain vowel sounds.
Brilliant, I'll stick to my manual lathe for now though.
I love manual lathes. Can't imagine having only a CNC, but will try to set this up with two dedicated X and Y jog encoders to get closer to the manual usage.
0:12 "Fisto"... I chuckled really hard
Pronounciation is not my think. Grammer also not.
@@RotarySMP I now know what tshirt I'll wear at EMO 2023 :)
@@chronokoks That'll fit right in.
Finally
Really.
Very interesting. I have no clue what your talking about, but very interesting.
:) That is a funny feedback. Thanks.
Funny thing that you praised the Heidenhein cables, your totally right, they are very good (and pricey :)
But working in a job shop we still end up changing quite a few of them.
(To be fair it's mostly cables that get flexed a lot, like a/b/c Axis )
Imagine how often you would be changing them if they were made cheap :)
@@RotarySMP luckily nothing is cheap in the CNC world ;)
@@user-nt6rq2vf7h That is for sure.
Annie deserves a bit more screen time.
I'd probably get a copyright strike.
@@RotarySMP You should name the Lathe 'Annie'.
@@nrml76 I dont name machines. It will remain "the Schaublin"
OK, I'll bite... ahhh Annie Lennox, well ok then (comment mostly for algo :-)
It stopped the pronounciation police beating on my every time I mispronounced Linux (which was everytime).
Parts going back on the lathe!!!!
Heat up a candle stick and press against that label that you've been cleaning up for the last year. That'll get it clean.
Cool Idea. I doubt it will work, but it will look cool in the video :)
Would Blu-tack do a similar job.
@@bostedtap8399 I think over years it would turn to a sticky mess.
How do you measure the latency of the PC you want to use? Is there a test program to run that simulates hardware or you need all the hardware parts connected up and working then run a test?
There is a latency test built in, and you dont need all the CNC peripheral hardware, as most latency problems are caused by power saving modes etc. If you burn the install ISO to a USB stick, it gives you the option to install, but also the option to run a live session, where it loads itself to a vertual drive in ram. This way you can try it out on any machine, without affecting the existing installed OS. You can then run the latency test and see if there may be issues.
I think I will stick with mechanical bits, like the two dowels to align the rotary encoder.
Thanks for sharing.
Yep, that is a large alignment feature. Thanks for watching.
Nice CEE reference 😉
Curtis does a great channel.
Granted, I only need to control a modest hobby-size 3-axis CNC mill, but as someone who did use LinuxCNC quite a bit, I find it nothing short of astonishing how much headache can be saved by just going with an Arduino running GRBL instead. And YES, all y'all, I do realize that's not a real option for the Schaublin - I'm not a complete idiot you know, some parts are definitely missing...
I always find the installation of Linux from a live CD super easy, and then have some challenges with some "simple" things like this time, but once I get through that, the system is normally rock solid.
I know nothing about aduino.
@@RotarySMP Oh, I never have any problems INSTALLING Linux, the problems always start the millisecond that's complete. :) As for GRBL, it's just a jewel of a tiny little firmware, running inside a classic Arduino Uno (which is to say, an ATmega328 MCU), which connects via USB to your PC and handles all the real-time niceties of outputting "LPT/parallel port" type step signals for a CNC the ultra-reliable way only a dedicated micro-controller can. Well, or a mesa card, which is the same thing - only for GRBL, the thing generating the signals and the thing computing when they should occur are under the same roof...
@@AttilaAsztalos Probably interesting for stepper based systems. Although the Mesa 7i96 I used on the mini lathe is also a great solution for that.
A good effort for sure but it looks like it might be time to try some more serious chemicals on that placard. Maybe some hot methyl ethyl ketone or piranha solution.
I remember MEP from the air force. Last time I smelt it in a hangar in Malasia a couple of years ago. Evil stuff.
Carbon tetra chloride is what we used at the appliance repair shop, way back then. It would turn your fingers white. Nitrile gloves hadn’t been invented yet it seems. Try getting carbon tet now, 😆
@@robert_g_fbg Right, I remember that from my apprenticeship as well. No wonder there was a huge ozone hole over NZ.
Nice
Thanks.
4:06 This guy is harmless. Runs security at CEE on the Goldcoast.
Sure is. I needed a "watchdog", so I borrowed Homey. :)
There's no harm in turning on both solenoids of a double-solenoid valve, it just won't work. There's a spool inside which directs the air (probably assisted by a smaller pilot air spool) and which is pulled by magnetic force from the solenoid. The closer the spool is to the magnet, the more force is available. If the spool is already shifted to the A side and the B side turns on, it will be held at side A, no harm done. Turn them both on at the same time, and it might behave unpredictably. Note that cheaper valves sometimes depend on the thermal mass of the spool and the air that flows over it to ensure the solenoid wiring stays cool, but those Festos should be fine.
Good to know thanks.
Looks like someone is watching CEE
Of yeah. Very cool channel. Amazing the size of the jobs he gets, and the speed he completes them.
@@RotarySMP bigger is better. I TOLD YOU!
@@NicoCarsAndCookies You also said to show more leg :)
Kurt's is getting rid on CNC on an old machine while you are adding it.
@@millwrightrick1 This is just a little baby mchine though :)
I love this series, but at this point I just want to say: take the nameplate off and put it in the ultrasonic cleaner already! :P
No way. It could damage the rivets :)
Hey, great Video. But I am wondering, from where You got the mesa cards? They are Not in Stock in all over europe.
I bought them a few months ago from EUsurplus in Portugal. I also waited a few months before ordering, as one of the cards was back ordered.
@@RotarySMP well okay, i was looking for ordering at this particular Shop. But they Do Not answer my Mails...
I’m not super familiar with the MESA cards, but I’ve seen videos of people using a Raspberry Pi as the brain running LinuxCNC. In fact, I’m using a RPi4 in conjunction with an Arduino Mega 2560 to control a little Sherline 4410 lathe, but I’m running bCNC. Out of curiosity, is there a reason you went with the (seemingly troublesome) HP instead?
It came up locally, for a good price, and has 6USB ports. I havent really followed the LinuxCNC-->RPi development, so I sort of stuck with what I knew.
Nice. Are we going to have to send you a toothbrush for the nameplate? Possibly even a new one...
I have an electric tooth brush for the Schaublin, it gets used as well.
some times technology is so complicated and analogue seem so easy
You are not wrong there. But then you see Andy Pugh's non-round turning in LinuxCNC, and imagine the complicated gear train to do that on an analog machine, and it is not so bad after all.
@@RotarySMP yeah obviously digital system are very nice but some times the fix is so long versus something old that have nothing digital, but yes i agree linuxGNC and similar software are beast that old system like you show in another video the old boards an such
MOM, i'm famous, i was mentioned on a youtube video, twice !!! :)
Thanks a lot for your help. Sometimes I really struggle with this part.
@@RotarySMP You are welcomed, always.
24 to go!
At least.
I am glad you managed the Linux config, Linux could be challenging in the beginning but at least you will never will need to worry about windows updates!
And now I can understand why Kurtis CEE wants to make his giant thing non-cnc.
This would have been less painful, if I could retain LinuxCNC knowledge, but I seem to memory dump it everytime I get a machine working.
There's still another belt round the headstock spindle, what's it for?
A spare. You have to pull the spindle to replace the belt. Putting a spare in there ensures that the otherone will never again fail. It is held in place with a magnet.
@@RotarySMP Oh I seeeee. Thanks for clarifying!
ITS NOT JUST ME THEN, i've had many a night screaming at the little pc to work and talk to the mesa card. had the same bug where i couldnt get to the ip changing part.
That is the challenge of Linux. You learn how to do something, but next time you need to do it, they have changed all the basic tools like network management, text editor etc. Fantastic software, by a serious tower of babbel problems as all Linux programmers are singing FrankSinatra's My Way!
Mate, where did you get all those Mesa cards? Mesa webshop is empty:(:(
I bought them about a year ago from Eusurplus in Portugal. PCW, from Mesa has reported on the LinuxCNC forum that they are having chip supply troubles, but that should be improving.
@@RotarySMP thanks for reply. Luckily i still have my old stock 5i25+7i85S unpacked in the drawer. It's time to get hands on it
@@The_Unobtainium The Mesa hardware is really really good, as is the support from the designer on the LinuxCNC forum.
I saw so much "linux cnc" meme image this time, so I just have to somehow google up who this is and what is she has to do with linux xD
Nothing at all, but it stops people pointing out my crap pronounciation of Linux. :)
It's Annie Linux, clearly...
@@TomtheKeyboardMagpie ok ok I googled I heard it of course just didn't know the name, a bit not my generation to be recognizable thats all. Although just have to say "into the west" suck compared to "may it be". So here you go xD
Was that a cameo of homeless the doggo from CEE? 😊
It sure was.
@@RotarySMP I finished the mini lathe playlist in a couple days and now I'm on the shaublin 😊 Cheers for the wicked content. I wondered why I enjoyed it so much and then all the nz stuff came out, we are a different breed 😏😄 assuming you are from little ol nz 👌
WTF with the flashes of the singer.!It is sick!
I had received a bunch of comments previously that I constantly mis-pronnounce Linux, and it sounds like Lennox. Hench Annie Lennox.
Is that Homeless from Cutting Edge Engineering Australia? 4:06 and 5:43
It is. I needed a watch dog. Hope the dont mind me borrowing it.
Dear God, there are 5 jokes per minute.
Thanks for watching.
Dear God, you bought all MESA damn cards !!!
I like the Mesa hardware. Very god support on the LinuxCNC forum.
Yay for nameplate
Coming along... slowly.
Why is there so much blinking images with a singer?
Otherwise a get a bunch of stess from the pronounciation police for the way I mispronounce LennoxCNC
Just say Annie CNC
@@RotarySMP I heve no care for that, I'm from Ukraine, so...
Someone get this man a toothbrush to clean the placard with 😆
Oh, look back a few episodes. I have a tooth brush for it.
@@RotarySMP aaa, missed that one!
May i say, that i said about this diode being blown on comment to previous video? C:
It is designed to suspend inducted reverse spikes and it does that perfectly, and it is able to pop fuse while wiring is reversed BUT it can blow while providing that feature. I think, that fusing this board is not recommended anyway, but powering with fuse in line is a good idea while prototyping
Yeah, there were a number of good suggestions, which I passed on to Stephan. He had it located in just a few minutes.
Ok, brushes ain't doing it for that nameplate. Pressure washer time! I.e. Munddusche 😂.
Now with even WSBK finished nothing there to distract from project work, right?
I wasn't watching WSBK. But I did have a lot of MotoGP distractions. Looks like Ducati is setting up for a dominant year in 2022. Amazing how close the lap times were this year.
Good grief, man. When are you going to get around to cleaning that name plate?
I think the swiss use ashpalt to gunk up their machines.
I am a retired PC tech. I know the basics of computers...have never tried to set up a system like you have just rigged up there. It would seem to me that in the future you will be able to use the fastest bus and just have a program to run it directly from the main cpu. That will take some development though and there is little incentive to develep that stuff for limited use. (But I might not know what I am talking about at all) By the way, Could you leave the flicker of Annie Lennox up a little longer. She's very pretty and I would just as soon look at her as your fingers.
Faster PC hardware is not the issue, it is the lack of realtime performance of modern OS's. LinuxCNC runs a linux distro modified with a real time kernal.So you can run stepper drivers directly through the parallel port, but the Mesa hardware offers so much more in the ablity to interface encoders, PWM outputs, Step/Dir, Analog, I/O, various serial protocols. As I understand it, Mesa hardware is mainly used in industrial applications, but the owner had a LinuxCNC driver written, and is very supportive of the community, although it is a niche use of his hardware.
@@RotarySMP Wow I had no idea. Thanks for explaining.
Your data plate has something stuck in its tz.
It does. Swiss gunk. Top quality, long lived, tough swiss gunk.
@@RotarySMP Speaking of top quality, thank you for a peek at the connectors on the encoder. Truly those are a thing of beauty.
@@jimsvideos7201 Would have cost good money.
😃😃😃
Thanks for the comment. It helps.
@@RotarySMPyour welcome
Lennox DMC
Yep, that is it.
Lenoux.
Sorry about the butcher pronunciation. Ever since I have been speaking German, I screw up certain English vowel sounds.
would have been a lot easier to go with acorn, especially since the encoder is already on the machine
I have no idea about Acorn. Could be argued I have little idea of LinuxCNC and Mesa, but I already got two machines up and running with them, so it was the obvious choice.
@@RotarySMP yea, i went mach3 on a conversion because i knew it , and knowing the platform goes a long way
And this is why many people don't use Linux at work if they don't need to...
You really cant argue with Linus:
czcams.com/video/Pzl1B7nB9Kc/video.html
Lennoxcnc
It is what a kiwi sounds like if they talk german for a couple of decades.
Why such a big ass encoder? Most of the ones I come across are tiny and unbelievably precise.
1. It is belt driven and needs decent bearings to react belt side loads.
2. In the Late 1970’s when Schaublin designed this large, this was small.
3. Schaublin used a heavy cast iron terminal connector housing for the main disconnect. This encoder is light and tiny.
Pick your answer.
@@RotarySMP Oops. I forgot the age of the machine.
@@bobweiram6321 Mine was built in 1983, but I am pretty sure they started production of these in about 1977.
I don't quite get the joke about flashing that singer picture but it's super annoying.
Sorry about that. Many comment that I mispronounce Linux to Lennox.