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My latest opening - Scandinavian Jail Lock Key made

Got this Scandinavian Jail Lock without a key.  Was going to pick it, but decided on something a little more ambitious.  Make a key.

Impressioning is kind of out of the question.  This is a disc lock with five iron discs.  There is no sidebar.  When the discs line up, circular cutouts in their outer edges line up with the shackle.

Too late tonight for a full how-to guide, so just the pictures of the lock and key.

First of all, this lock is a bit on the large side.  Certainly would not want this lock dropped on my foot!


The lock and the nearly finished (but operational) key



This lock-on-a-stick is an iron rich food.  



Picture of key turned in lock.  This does not mean much, as a properly made blank will turn in the lock, too.



The key works!!!  The shackle is removed.  By examining the shackle, you can see that there are five discs that engage the shackle.



An end view of the key.  The metal used is 1/4" (8mm) bar aluminum filed to the correct width, center drilled to 3/16" diameter by 2" depth





EDIT: Corrected hole diameter size.

Wow man, that is some really cool work. Cant wait to see a full how to done up

Then I will see if I can make time tomorrow or Thursday,

Gordon

That is awesome!!!

Holy shit that is insane. Nice work man!

DAMN Gordon! That's some insanely cool work... can't believe you were able to do that.

I too cannot wait to see a bit of a how-to on how you went about doing it. Very nice!

I'll post this in this thread as well, in case it's of use to anyone else who has one of these...

I can't quite tell from the photos -- but if the dots are still visible inside the star that surrounds the keyway, you can also decode the cuts from those:

• One dot (⋅) corresponds to no cut (0°)
• Two dots (∶) corresponds to a "full cut" (about 80°)
• Three dots (⋮) corresponds to a "half-cut" (about 60°)

Holding the lock so that the dots are at the bottom, the left-most dot pattern corresponds to the tip of the key -- and the right-most dot pattern corresponds to the cut closest to the bow.

If I'm reading your key right, I think your pattern should be: ⋅ ∶ ⋮ ⋅ ⋮

That's a feat of ingenuity must have felt good to open that beast with a self made key Thanks for the key star porn .

Way to go Gordon, I've seen pics of those locks, but didn't realize how big they were! Your skills are pretty bad ass too!
Be interesting to know that lock's story, if only it could tell us...

Gordon

That is one damn big lock!

I have seen them listed never thought they were that big!
Great job on that key I think most would not even attempt to make one.

Richard

scandinavian locks were around about a hundred plus years ago,

they came in various sizes, most are smaller that that big thing.

they were the first disc locks and probably inspired the creation of the abloy.

I do not know if they were always industrial production or if they were even crafted by blacksmiths.

it would be interesting so see some of the history of these locks. if anyone knows the source.

Nice work. That lock is massive.