impressiontrick

[ridderhenck]

I couldn,t sleep last night so I started thinking about an idea I have,ok here it is:

You have this lock,let,s say a 5 pin lock with a code 0-9,ok,let,s make 10 keys,cut 00000,11111,etc.

Now we want to impresssion this lock.We take keycut 99999,make it black with something like a candle or marker.After we put in this key and make the same moves as if we were impressioning,we take out the key and look if there is missing any black markings,if so then there is one of the cuts a 9er,right?So if you continue this process with the other keys 8,7,6,5,4,3,2,1,0,you will know very quick the keycode,right?Or wrong?

hey,it,s just a thought

[Shrub]

Ill see if i can find it for you but there was a thread on pretty much the same thing not so long ago that got quite a lot of responces,

I dont think it would work as the pins at rest would mark the keys,

[Krypos]

yeah, theres an issue with doing that.

as shrub said, i think its that you would get false readings really. pins would mark it that werent really that height.

i read it somewhere also, should i chance upon it, then i will post it.

and you can always try. impressioning is fairly cheap. though getting all those keys cut to code might prove tricky if you dont have a key cutter.

good thinking though.

[Shrub]

Here you are mate,

LINK

[ridderhenck]

It is because of that posting that I thought how about working the other way around.Instead of starting with number 1 start with number nine.The way impressioning works ,I know you all know that,is by filing of marks untill there are no marks.But when you start with the nine key and there is one pin which sets,this pin will rub the blackened marking off while the other pins will not because they can,t reach the number 9 heighth,makes sense?

[Shrub]

Ok then you should have posted on THAT thread instead of making a new one,

Pins in the lock will be pushed to the same level by the springs,

Pushing any key in means that the springs will push the pins down onto the key,

While the key is pushed in and the pins are moved by the cuts they drag accross the full length of the key,

This movement will remove the ink or whatever you use on all the cuts,

By all means try it but ive tried and tried all these sorts of methods in the past and the closest thing your going to get is to use a set of space and depth keys,

Cut your key at the first height on the space keys and then impression, where there are marks cut down again in those places to the next space key,

This is the fastest way ive found of impressioning but requires a key machine obviously,

I admit im not that great on impressioning pin locks right now but do know all the techniques, i just cant do it very well as ive not spent long enough practiceing but its somthing i am presently into,

[mark davis]

i really don't understand how this method could work, when impressioning you only get a mark if the key is at the wrong height if it is at the correct height there is no resistance hence no mark.
Am i missing something?

[ridderhenck]

you,re right,

should have thought about that,hmmm....

[Shrub]

Mark, you also get a mark when youve gone too far, the skill is in seeing the marks and knowing when to stop fileing,

[mark davis]

Really, what is causing the mark when you have gone to far?

[ridderhenck]

ohw???Didn,t know that.
Still doesn.t change the fact that what I had in mind doesn,t work.

And how about using the same keys,they,re there why not use them

File four of the five bittings off and also file a bit off the back of the key.

Then put the key in,until it has reached the fifth pin,use a tensionwrench on top of the keyhole,to keep torque on the lock and pull the key a bit back,then let the tension go,when you hear a click its a hit.Probably not enough space between two pins....

i know,it would take a lot of work but its the result that counts!!

[Shrub]

The first mark is the bottom pin binding against the lock body,

You impression to the shearline which then stops the key marking,

If you continue to file or take too much off on your last file you then are binding on the top pin and thusly leaving a mark again,

Once you get that second mark and you didnt realise it you can continue impressioning until that cut is at the lowest cut and still marking!!!

Hope that makes sence,

[mark davis]

Yes perfectly, many thanks