Model M disassembly

I just took the caps off of the model M I got from Ascaii and found this little flag or whatever. Can anybody tell me what it is? The bold-mod article didn't contain anything on disassembling. :)

flaggy.JPG
flaggy.JPG (314.39 KiB) Viewed 2883 times
Icarium
User avatar

Unread post11 Feb 2012, 19:27

User avatar
X
Icarium
 
Posts: 1627
Joined: 11 Jan 2012, 18:22
Location: Germany
Main keyboard: These fields just
Main mouse: opened my eyes
Favorite switch: I need to bring stuff to work
Club member: 0041
 
Ground, to prevent you from electrocution and instant death while using a Model M. Only in keyboards from IBM UK, EU regulations and all.

Image
webwit
User avatar
Wild Duck

Unread post11 Feb 2012, 20:14

User avatar
X
webwit
Wild Duck
 
Posts: 7113
Joined: 28 Jan 2011, 01:27
Location: The Netherlands
Main keyboard: DataHand Pro II
Favorite switch: Buckling spring
Club member: 0000
 
 
webwit wrote:Ground, to prevent you from electrocution and instant death while using a Model M. Only in keyboards from IBM UK, EU regulations and all.

Indeed. I think it's only found on newer model Ms. My UK-manufactured 1396790 (blue label) from 1995 has it while my 1390131 from 1986 (square silver label, also UK-manufactured) doesn't.
BTW, I highly doubt that this ground wire has any effect at all.
Kurk
User avatar

Unread post11 Feb 2012, 20:32

User avatar
X
Kurk
 
Posts: 592
Joined: 03 Nov 2011, 22:10
Location: Sauce Hollondaise (=The Netherlands)
Main keyboard: Kinesis Advantage // Filco MJ2 + HID liberation
Main mouse: ITAC Mousetrak Professional
Club member: 0027
 
Okay, next step. Where do I find a damn screwdriver that will open this thing? *sigh*
Icarium
User avatar

Unread post11 Feb 2012, 21:33

User avatar
X
Icarium
 
Posts: 1627
Joined: 11 Jan 2012, 18:22
Location: Germany
Main keyboard: These fields just
Main mouse: opened my eyes
Favorite switch: I need to bring stuff to work
Club member: 0041
 
You need a 5.5mm nut driver, which should be plentiful at your tool/model shop or regular electronics supplier of choice.
nathanscribe
User avatar

Unread post11 Feb 2012, 21:36

User avatar
X
nathanscribe
 
Posts: 503
Joined: 13 Mar 2011, 14:03
Location: Yorkshire, UK.
Main keyboard: Filco tenkeyless w/blues
Main mouse: Kensington Expert
Favorite switch: MX Blue
 
Alternative method:

Step 1: Get a pen, like the Bic pen in the picture.
Step 2: Open the rear end.
Step 3: Burn the rear end. Use a lighter or something. Don't burn it too much. The plastic needs to get weak.
Step 4: Put the rear end in one of a Model M's screw holes so it fits over one of the bolts. Press firmly.
Step 5: Wait until the plastic gets firm again.
Step 6: Start to unscrew the bolt.
Step 7: Break the pen, fail to open the Model M.
Step 8: Buy a 5.5mm nut driver.

Everyone can do it.

Image
webwit
User avatar
Wild Duck

Unread post11 Feb 2012, 22:09

User avatar
X
webwit
Wild Duck
 
Posts: 7113
Joined: 28 Jan 2011, 01:27
Location: The Netherlands
Main keyboard: DataHand Pro II
Favorite switch: Buckling spring
Club member: 0000
 
 
This trick works better for stealing bicycles with Kryptonite Locks:

http://www.engadget.com/2004/09/14/kryp ... a-bic-pen/

I'm sure this never happens in advanced cultures like the EU but it is a recurring problem in the crime ridden USA.

Image
ripster

Unread post11 Feb 2012, 22:19

X
ripster
 
Posts: 4080
Joined: 09 Feb 2011, 08:04
Location: Ugly American
Main keyboard: As Long As It is Helvetica
Main mouse: Mickey
Favorite switch: Wanna Switch? Well, I Certainly Did!
 
Icarium wrote:Okay, next step. Where do I find a damn screwdriver that will open this thing? *sigh*

5.5 mm or 7/32 inch. Actually, they are not that common in metric Europe. I see you're living in Germany; you could order one at Conrad:
http://www.conrad.de/ce/de/product/826193/AUSSEN-SECHSK55X60-ELEKTR-STECKSCHL
Kurk
User avatar

Unread post12 Feb 2012, 11:41

User avatar
X
Kurk
 
Posts: 592
Joined: 03 Nov 2011, 22:10
Location: Sauce Hollondaise (=The Netherlands)
Main keyboard: Kinesis Advantage // Filco MJ2 + HID liberation
Main mouse: ITAC Mousetrak Professional
Club member: 0027
 
I've ordered one from an autoshop in France and the nut driver is too large for the ssk hole. :evil:
For the Model m it fits only if you push strongly...
Gilgam
User avatar

Unread post13 Feb 2012, 00:34

User avatar
X
Gilgam
 
Posts: 1075
Joined: 23 Feb 2011, 00:59
Location: france
Main keyboard: Too many
Main mouse: CST trakball
Favorite switch: red ?, maybe topre, well no, black... Or brown???
 
That's a good point - make sure the outer diameter of the head fits in the hole. You can get slimline ones. I suspect ones made for work on vehicles are designed to be rather more heavy duty...
nathanscribe
User avatar

Unread post13 Feb 2012, 01:06

User avatar
X
nathanscribe
 
Posts: 503
Joined: 13 Mar 2011, 14:03
Location: Yorkshire, UK.
Main keyboard: Filco tenkeyless w/blues
Main mouse: Kensington Expert
Favorite switch: MX Blue
 
webwit wrote:Alternative method:
Step 1: Get a pen, like the Bic pen in the picture.
Step 2: Open the rear end.
Step 3: Burn the rear end. Use a lighter or something. Don't burn it too much. The plastic needs to get weak.
Step 4: Put the rear end in one of a Model M's screw holes so it fits over one of the bolts. Press firmly.
Step 5: Wait until the plastic gets firm again.
Step 6: Start to unscrew the bolt.
Step 7: Break the pen, fail to open the Model M.
Step 8: Buy a 5.5mm nut driver.
]

Damn you, you crazy dutch prophet!

1. It actually works. I was absolutely amazed.

pen1.JPG
pen1.JPG (138.71 KiB) Viewed 2770 times


2. As you predicted the damn pen broke exactly after 3 of the 4 screws.
BUT I eventually managed to do it again after cutting of pieces of the pen several times.

pen2.JPG
pen2.JPG (328.17 KiB) Viewed 2770 times


(Also note the free paperclip, thanks Ascaii!)

Pen: Giveaway
Lighter: 1 Euro
Poisoning myself with plastic fumes next to an open window at -10 degrees celsius because the dutch keyboard guru says so: PRICELESS

In other news, this is not the first pen that had to die for this model M:

pen3.JPG
pen3.JPG (149.24 KiB) Viewed 2770 times
Icarium
User avatar

Unread post13 Feb 2012, 01:19

User avatar
X
Icarium
 
Posts: 1627
Joined: 11 Jan 2012, 18:22
Location: Germany
Main keyboard: These fields just
Main mouse: opened my eyes
Favorite switch: I need to bring stuff to work
Club member: 0041
 
Gilgam wrote:I've ordered one from an autoshop in France and the nut driver is too large for the ssk hole. :evil:
For the Model m it fits only if you push strongly...

Here is another one:
Attachments
screwdriver4Model_M_002.jpg
screwdriver4Model_M_002.jpg (43.11 KiB) Viewed 2768 times
screwdriver4Model_M_001.jpg
screwdriver4Model_M_001.jpg (33.07 KiB) Viewed 2768 times
7bit
User avatar

Unread post13 Feb 2012, 01:25

User avatar
X
7bit
 
Posts: 10144
Joined: 01 Feb 2011, 01:37
Location: Berlin, DE
Main keyboard: Tipro / IBM 3270 emulator
Main mouse: Logitech granite for SGI
Favorite switch: MX Lock
Club member: 0001
 
Icarium wrote:
pen3.JPG
^^^This does not look like a pen. More like some leftover from webwit's foot-pedals.

edit: Now I see the the pen! Good idea!
7bit
User avatar

Unread post13 Feb 2012, 01:28

User avatar
X
7bit
 
Posts: 10144
Joined: 01 Feb 2011, 01:37
Location: Berlin, DE
Main keyboard: Tipro / IBM 3270 emulator
Main mouse: Logitech granite for SGI
Favorite switch: MX Lock
Club member: 0001
 
Aaaarrrrggghhhhhhh.

I finally opened up one of my model M's by brute force because I could not find a 5,5 bolt driver..... I bought 2 bolt screwdrivers via the internet : 5 and 6 mm just to be sure I could open it, but I finally found out it's a 5,5 : these are very uncommon in the EU.
Should have checked the forum or asked in a post. I ultimately opened it up by drilling the holes since I am going to use it as a key donator board anyway.

Still got a question : how can I properly remove the metal plate from the assembly? Drill the holes?Any ideas? My hope is that if I remove the metal plate underneath the PCB I only have to cut some plastic in order to get what I want, but if the switch is attached to the metal plate in some way I might be in for a nasty surprise ( Waisted a perfectly functioning model M )

EDIT : I found some useful material here : http://geekhack.org/showwiki.php?title=Island:15277 . The guy drilled all the little holes apparently, I can see the springs have some kind of T-shaped plasticy thingy attached to it which is dangling loose. So I guess I have to somehow add something as a base to the switch in order for it to properly function. I guess nobody ever tried this before :) How to best cut the metal?

[excuse me for hijacking this thread, but the question in the OP was already answered.....]

Regards.
Mrinterface
User avatar

Unread post13 Feb 2012, 11:39

User avatar
X
Mrinterface
 
Posts: 1375
Joined: 30 Jan 2011, 16:47
Location: The Netherlands
Main keyboard: Omnikey evolution
Main mouse: G9
Favorite switch: Monterey blues
Club member: 0012
 
 
To boldly go where no innovator has gone before : always engage at full trust.
Search for "5,5mm dopsleutel" and there are plenty. To remove the plate, shave off the rivets. After this you need a bolt mod to put the keyboard together again.
webwit
User avatar
Wild Duck

Unread post13 Feb 2012, 12:05

User avatar
X
webwit
Wild Duck
 
Posts: 7113
Joined: 28 Jan 2011, 01:27
Location: The Netherlands
Main keyboard: DataHand Pro II
Favorite switch: Buckling spring
Club member: 0000
 
 
Mrinterface
User avatar

Unread post13 Feb 2012, 12:21

User avatar
X
Mrinterface
 
Posts: 1375
Joined: 30 Jan 2011, 16:47
Location: The Netherlands
Main keyboard: Omnikey evolution
Main mouse: G9
Favorite switch: Monterey blues
Club member: 0012
 
 
To boldly go where no innovator has gone before : always engage at full trust.
Are you trying to add BS to a switch-try-board? ;)
Icarium
User avatar

Unread post13 Feb 2012, 12:41

User avatar
X
Icarium
 
Posts: 1627
Joined: 11 Jan 2012, 18:22
Location: Germany
Main keyboard: These fields just
Main mouse: opened my eyes
Favorite switch: I need to bring stuff to work
Club member: 0041
 
Icarium wrote:Are you trying to add BS to a switch-try-board? ;)

Just to add it to a switch try bag ( or maybe create a 4 cluster like ceesa is doing with his gaming switch try boards )

Regards.
Mrinterface
User avatar

Unread post13 Feb 2012, 12:51

User avatar
X
Mrinterface
 
Posts: 1375
Joined: 30 Jan 2011, 16:47
Location: The Netherlands
Main keyboard: Omnikey evolution
Main mouse: G9
Favorite switch: Monterey blues
Club member: 0012
 
 
To boldly go where no innovator has gone before : always engage at full trust.
Kurrk wrote:
webwit wrote:Ground, to prevent you from electrocution and instant death while using a Model M. Only in keyboards from IBM UK, EU regulations and all.

Indeed. I think it's only found on newer model Ms. My UK-manufactured 1396790 (blue label) from 1995 has it while my 1390131 from 1986 (square silver label, also UK-manufactured) doesn't.
BTW, I highly doubt that this ground wire has any effect at all.

The "flag" is a clip which attaches the static drain wire to ground. Static electricity can and does build up when skin is rubbed against plastic repeatedly (the thumb hitting the space bar). You think they put it there just for fun? Perhaps you'd enjoy frying your semiconductors or getting a static shock instead. ^_^

I'm quite surprised noone else realised what this is for...
glossywhite

Unread post16 Mar 2012, 01:44

X
glossywhite
 
Posts: 177
Joined: 02 Mar 2012, 03:37
Main keyboard: Key Tronic KT2001
 
Too obvious. Your troll on the marketplace was better.
webwit
User avatar
Wild Duck

Unread post16 Mar 2012, 01:51

User avatar
X
webwit
Wild Duck
 
Posts: 7113
Joined: 28 Jan 2011, 01:27
Location: The Netherlands
Main keyboard: DataHand Pro II
Favorite switch: Buckling spring
Club member: 0000
 
 
webwit wrote:Too obvious. Your troll on the marketplace was better.

This is not a troll, this is me getting involved. Can't win on this forum :?

Static build up and needs to drain to earth: show me what part of that information is trolling.

Read part 1 of this article: http://www.osha.gov/dts/hib/hib_data/hib19880930.html

Then this: http://www.resistoflex.com/staticdischarge.htm

And this: http://www.explainthatstuff.com/howanti ... swork.html


You may be the keyboard experts, but even experts have gaps in their knowledge. It doesn't take much thinking to realise that a grounded copper conductor will drain away a surface charge of static electricity.


PS: The melting of a biro end and pressing it over the screw head also works *really* well for Nintendo SNES consoles etc... if you get it just right ---> http://www.flickr.com/photos/22008695@N ... 6112546735
glossywhite

Unread post16 Mar 2012, 02:18

X
glossywhite
 
Posts: 177
Joined: 02 Mar 2012, 03:37
Main keyboard: Key Tronic KT2001
 
5.5mm Nut drivers, in the UK. Postage is £3/£4ish.
http://www.maplin.co.uk/6-piece-precisi ... set-223457

I use it on my M's, M13 and F.

I accept thanks in the form of blank BS keys...
InSanCen
User avatar

Unread post06 Jun 2012, 14:41

User avatar
X
InSanCen
 
Posts: 24
Joined: 06 Jun 2012, 14:11
Location: Wales, boyo, Baaaa...
Main keyboard: M13 & AT102W
Main mouse: MX518
Favorite switch: Buckling Springs/Cherry Blues/Black Alps
 
Icarium wrote:
webwit wrote:Alternative method:
Step 1: Get a pen, like the Bic pen in the picture.
Step 2: Open the rear end.
Step 3: Burn the rear end. Use a lighter or something. Don't burn it too much. The plastic needs to get weak.
Step 4: Put the rear end in one of a Model M's screw holes so it fits over one of the bolts. Press firmly.
Step 5: Wait until the plastic gets firm again.
Step 6: Start to unscrew the bolt.

Damn you, you crazy dutch prophet!

1. It actually works. I was absolutely amazed.

This is pure gold. Thanks guys :lol:

20140613_201235_Android2.jpg
Note failed first attempt on the right
20140613_201235_Android2.jpg (895.9 KiB) Viewed 623 times
shreebles
User avatar

Unread post13 Jun 2014, 20:31

User avatar
X
shreebles
 
Posts: 84
Joined: 24 Jul 2013, 15:35
Location: Germany
Main keyboard: Home: Quickfire TK, MX-Red; Work: Cherry G80-1851
Main mouse: Roccat Savu
Favorite switch: TBD...
 

Who is online

Users browsing this forum: beltet, Google Feedfetcher, Muirium and 17 guests