Medeco m3 Breakdown

by **JK_the_CJer** » 4 Oct 2007 20:10

Alright folks, my ebay'd m3 finally arrived. To my surprise it is the 6 pin model and not the 5 pin that the seller said it was. It was a happy surprise. I haven't messed with picking it yet, but I did duplicate the slider degrade attack. It appears brand new and is full of some sort of white cocaine-looking dry lube. Anyhow here's the goods:

by **Eyes_Only** » 4 Oct 2007 22:36

Beautiful.

I'm gonna try to get a Medeco BiLevel soon from another shop that sells them that we know so maybe I'll post a break down of that lock too when I get the chance.

by **Trip Doctor** » 5 Oct 2007 15:35

Coool,

I like the cardboard thing

.

Did you just lay the pins and springs out on it, or did you actually use that with another peice to take them out ?

by **zeke79** » 5 Oct 2007 21:52

Just to note. Biaxial has nothing to do with the false grooves in the pins. The way you worded your post seemed as though you may have thought this has something to do with a lock being biaxial or not. Just wanted to clear that up. Biaxial only refers to how the key is cut. It refers to the location of the chisel point in relation to the true center of a center location of a cut on the key.

THere are three locations for each space that a cut can be made on the key. There is a fore cut which is .030" before the center cut for a particular space while an aft cut is .030" after the center location.

Hope that helps clear up any confusion if you had any ;-)

.

by **JK_the_CJer** » 6 Oct 2007 6:07

Thanks for the explanation as I'm sure a lot of people are fuzzy about it. The whole original/biaxial thing is sort of a pet peeve of mine. I mentioned both the fore/aft offset and the false notches when I wrote that it was biaxial. I am aware that the false notches is not what the name Biaxial refers to. However, false grooves were only added when the biaxial system came out. The differences between the key pins from original to biaxial were: locater tab (right word) moved 90 degrees, fore/aft offsets, and false grooves added. I don't know if non-biaxial key pin have been produced since then that feature false grooves, but they were introduced with the biaxial. This information's source is the book "The Complete Guide to Locks and Locksmithing" (i think thats the name). If this information is incorrect, please let me know.

by **JK_the_CJer** » 6 Oct 2007 6:10

Trip Doctor wrote:Coool,

I like the cardboard thing .

Did you just lay the pins and springs out on it, or did you actually use that with another peice to take them out ?

Nah, I just lay the pins in that. Its really helpful when trying to keep them organized, free, and cutable to any size. It seems to be a pretty old trick and saw extensive use during the lock assembly contest at defcon this year.

by **raimundo** » 6 Oct 2007 7:37

Thats the first look Ive had at the slider and the sidebar notches it fits, I never had one of these locks, actually the slider looks like its more trouble than its worth, considering its one the bottom of the keyway and could easily be screwed up with any dust, pocket lint, and glue that may get in there.

by **JK_the_CJer** » 9 Oct 2007 4:18

http://www.crypto.com/photos/misc/lockp ... ottom.html

There is a non-biaxial key pin that does employ false sidebar notches. This means that they do exist at least. Also, after reading through Matt Blazes stuff, I've realized that none of my Medecos have any serrated pins (driver or key), but they do exist.

PS: I've picked it with 5 of the 6 pins (+ sidebar) once and a bunch of times with less pins, so I'm making progress.

by **ThE_MasteR** » 9 Oct 2007 11:04

This is something I would wanna see on my blog lol...Nice job !

by **El_Gorgon** » 22 Oct 2007 16:22

Zeke, are u completely sure about it? biaxial is refering about the cut o the key....
i thouth that bi-axis....in spanish (dos ejes) was refering about the capacity of the pins to move in two axis (up and down, and rotating itself)

Jk, it a beautiful cilinder...i just received one of these some days ago and i love it.....but im begining to hate that slider, it becames very unconfortable to pick the lock....XD
G.!

by **bluestar** » 23 Oct 2007 3:27

@El_Gorgon: zeke is right; the "original" ("non-boaxial") Medeco cylinders had the tunrning pins as well.

by **arris** » 24 Oct 2007 16:11

looks good,

wish i could get hold of one of these over here easily,

closest i got is a assa with sidebar

by **dougfarre** » 24 Oct 2007 16:35

Could someone explain what the slider does?

by **JK_the_CJer** » 24 Oct 2007 16:44

I am assuming that you know how a normal Medeco with sidebar works. The sidebar must be able to be pushed into its cavity in the plug. In the m3, there is an additional component blocking this from happening called the "slider". When the slider is pushed forward the precisely right distance by a step on the key, it aligns with a notch in the sidebar and allows the sidebar to drop into the cavity.

by **dougfarre** » 24 Oct 2007 17:25

Awesome, i totally see that notice in the picture of the key! Thankya

Medeco m3 Breakdown

Medeco m3 Breakdown

thanks

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