Cern

**RayG** · 26th September 2013, 06:24 PM

Originally Posted by Stustoys

Their comparator is from Japan by the looks of it

Probably left by a visiting Japanese engineer

, the metrology stuff is a bit less euro-centric.. they even have a HP laser interferometer..

The whole metrology area is temperature controlled to 20C
2013_CERN_WKSHOP 087 (Large).jpg 2013_CERN_WKSHOP 085 (Large).jpg 2013_CERN_WKSHOP 083 (Large).jpg

They have a class 1 room, which has a seperate outer room for the operator
2013_CERN_WKSHOP 082 (Large).jpg

X ray scanner for checking welds.
2013_CERN_WKSHOP 081 (Large).jpg

A lot of the stuff they make is used at liquid helium temperatures, and high vacuum. They make their own
stainless steel bellows and cryo fittings.

2013_CERN_WKSHOP 094 (Large).jpg 2013_CERN_WKSHOP 097 (Large).jpg 2013_CERN_WKSHOP 100 (Large).jpg

This flexible stainless coupling is made up of rings of stainless and then manually tig welded.. one ring at a time.
2013_CERN_WKSHOP 095 (Large).jpg 2013_CERN_WKSHOP 096 (Large).jpg

A lot of difficult to weld parts are electron beam welded.
2013_CERN_WKSHOP 114 (Large).jpg 2013_CERN_WKSHOP 115 (Large).jpg 2013_CERN_WKSHOP 116 (Large).jpg

2013_CERN_WKSHOP 098 (Large).jpg 2013_CERN_WKSHOP 111 (Large).jpg 2013_CERN_WKSHOP 112 (Large).jpg

The last picture show a test piece indication the weld penetration vs the surface blow back, a lot of the
electron beam welding is difficult to weld stuff like copper.

That's it!

Regards
Ray

**RayG** · 26th September 2013, 06:48 PM

Originally Posted by Michael G

Is any of the machinery or measuring equipment not Euro sourced? What proportion is manual vs. CNC? (Or are the parts too complex such that CNC makes more sense)
Michael

On the CNC vs Manual question, I think its mostly CNC, but the manual machines are still used every so often, in specific instances they can handle much larger parts on their manual machines, like that big planer/mill in earlier pictures.

They are inclined to outsource jobs that involve a lot of repetition, or are "run of the mill" type jobs, and they seem to go for the really specialized hard to do type of work... lots of x-ray'ing of welds and testing of parts to make sure they are going to be vacuum tight and work at liquid helium temperatures...

Amazingly skilled people and amazing place.

Regards
Ray

**Machtool** · 26th September 2013, 07:20 PM

Originally Posted by Stustoys

(and what looks like a wood dummy holder in the spindle...... of course they would use something much more advanced than wood

)

The thing in the spindle is a Spindle Taper Cleaner. Normally they are timber or plastic with strips of Chamois leather attached.

Ensure Absolute Cleanliness of Spindles - Spindle Cleaners - BIG Kaiser

They are just being extremely Swiss, by leaving it in the spindle socket so dust doesn't get in there.

Regards Phil.

**simonl** · 26th September 2013, 07:37 PM

Nice.

I think my shed needs cleaning. Do you think they sweep their floors with a broom, or just use a feather duster?

I'd hate to pick up the tab on some of the stuff they make and do!

Simon

**Anorak Bob** · 27th September 2013, 10:47 AM

Truly wonderful Ray. I reckon it's like being a six year old opening presents on Christmas Day when you encounter machines and equipment such as you have seen.

I would have been happy enough to have spent a day just in the Atelier Mecanique.

Fantastique!

BT

**RayG** · 27th September 2013, 05:11 PM

Hi BT,

You're spot on, like a kid in a candy shop

it's all a bit overwhelming, almost defies description..

Google has just released streetview of CERN, including a section of the underground ring, and the ATLAS detector.

Google Street View Lets You Take A Virtual Tour Of CERN | Fast Company | Business + Innovation

I've only got the link, so I'm not yet sure how to get streetview underground... If someone figures it out let us know.

Last couple of days we've seen the Computing Center, ( and witnessed a little bit of History.. ) and got a look at an interesting experiment to see if gravity affects anti-matter the same as matter...

Regards
Ray

**Stustoys** · 27th September 2013, 05:23 PM

Hi Ray,
I couldnt get it to work from your link, just pictures.
This one seems to work.
https://www.google.com/maps/views/streetview/cern?gl=us

Stuart

**RayG** · 27th September 2013, 05:59 PM

Originally Posted by Stustoys

Hi Ray,
I couldnt get it to work from your link, just pictures.
This one seems to work.
https://www.google.com/maps/views/streetview/cern?gl=us

Stuart

Thanks Stuart, that worked..

We get to see CMS later today, and ALICE tomorrow.

Regards
Ray

**Brobdingnagian** · 3rd October 2013, 02:25 PM

Adding some of my pictures into the mix.
IMG_1574.jpg
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There are some very nice rocks all over CERN, with a high density in the workshops, here is a nice 4x4' Swiss one.

IMG_1575.jpg
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Large Deckel Machining centre DMU 210 FD.

IMG_1576.jpg
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High precision CNC Lathe

IMG_1577.jpg
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Sample of one of their current work pieces, Combination of Lathe, Mill, and EDM.

IMG_1578.jpg
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Planer

IMG_1579.jpg
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The Crossrail flaking on the above planer.

**Brobdingnagian** · 3rd October 2013, 02:36 PM

IMG_1580.jpg
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Nice Collet Bed Mill.

IMG_1582.jpg
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Yet Another Swiss delight

IMG_1583.jpg
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A Cheeky FP2 just sitting outside the EDM section, Perfect condition

IMG_1586.jpg
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A well used Schaublin 160

IMG_1587.jpg
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A nice little drill press.

IMG_1588.jpg
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The Swiss being really Swiss

Still more to come

**Brobdingnagian** · 3rd October 2013, 02:54 PM

IMG_1593.jpg
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A Machine very close to my interest; an in service Deckel FP2LB.

IMG_1594.jpg
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Interestingly it had pull dials ?? Which means the FP2LB was still being produced along side its very very close relative the FP3L.

IMG_1595.jpg
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Name Plate, It must have been very close to the last of these to be produced.

IMG_1596.jpg
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Just another angle.

IMG_1597.jpg
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And another

Yet still more to come

**Brobdingnagian** · 3rd October 2013, 03:04 PM

On to the Meteorology Shop.

IMG_1599.jpg
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IMG_1600.jpg
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IMG_1601.jpg
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IMG_1602.jpg
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IMG_1603.jpg
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Flexible vacuum coupling, it is TIG welded on the inside and outside. The are used all over their accelerators.

IMG_1604.jpg
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Finger for scale

IMG_1605.jpg
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Yet another nice drill press

Yet Still More

**Brobdingnagian** · 3rd October 2013, 03:13 PM

IMG_1606.jpg
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A nice little aciera

IMG_1607.jpg
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another shot.

IMG_1608.jpg
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Another Deckel FP3 in the corner of the sheet metal shop

Thats the end of my stills of the workshop but I have a time lapse video I will upload soon.

Next I will post some pics from the CLIC accelerator.
IMG_1615.jpg
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Dosimeters are fun....

**Stustoys** · 3rd October 2013, 03:26 PM

Hi Josh,
Thanks for the pictures.

Even at Cern the plates get used as coffee tables? or is that cup half full of Antimatter or some such?

To those that know about these things. Isn't that an awful lot of flaking on that crossrail?(but then one assumes that the person that put it there knew what they were doing........)

Stuart

**Brobdingnagian** · 3rd October 2013, 04:11 PM

Originally Posted by Stustoys

Hi Josh,
Thanks for the pictures.

Even at Cern the plates get used as coffee tables? or is that cup half full of Antimatter or some such?

To those that know about these things. Isn't that an awful lot of flaking on that crossrail?(but then one assumes that the person that put it there knew what they were doing........)

Stuart

Yeah, but they have so many rocks and they keep everything so very clean.

On the scraping they are not in the habit of throwing out older gear in blind preference to modern cnc machines, which I like, it seems they would rather get their machines refurbished as soon as they wonder outside their required spec, every single machine they had in their workshop was in fantastic working condition.

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