FAQ: The Fine Art of Impressioning (in a nutshell)

[Shrub]

To be honest, im not sure,

I think you may get away with posting the relevant bits and accrediting the author and which book it came from but im really not sure,

You could just send me a pm with the relevant scans in if you want as i dont see anyone else posting interest in it

[globallockytoo]

I have now found the other book too....it was written in 1946 and is a revised edition from 1937...

I might just scan in the more recent one, as the diagrams are more plentiful...but will have to do so later in the week as i'm off on a business trip

[globallockytoo]

http://i115.photobucket.com/albums/n283 ... iongun.jpg

This is a diagram of the impression gun....

It is fairly common and easy to make...but is sold by various locksmith supply companies.

[Schuyler]

Is that shot taken from a larger PDF on the subject?

[Shrub]

Ah its not what i thought it could be, thats a poor way of doing it as the bump key isnt goign to be moved in the correct way,

It does beg the question has anyone actually put a bump key on a manual pick gun??

Actually scrap that, i dont think it would work the same reasosn the above tool wont work,

[globallockytoo]

Is that shot taken from a larger PDF on the subject?

No I just scanned the page from the book and made a screenshot of the pic to reduce the size of the image....

The impression gun is relatively inexpensive to purchase and is a great aid in teaching the finer points of pin tumbler impressioning.

By setting the shoulder of your blank close to the plunger...you can adjust the depth that the plunger pulls your blank out of the plug...

Using this system it is very simple to plainly identify which space is marking clearly...

To anyone learning to impression...it can be of great assistance...once mastered...you will turn to your trusty vice grips in almost every case, becuase you will know exactly how much pressure is required

[globallockytoo]

Ah its not what i thought it could be, thats a poor way of doing it as the bump key isnt goign to be moved in the correct way,

It does beg the question has anyone actually put a bump key on a manual pick gun??

Actually scrap that, i dont think it would work the same reasosn the above tool wont work,

What do you mean, "thats a poor way of doing it as the bump key isnt goign to be moved in the correct way"?

Are you trying to suggest a "bump gun"?

This is meant to fashion the correct key for the cylinder....not a bump key!

[Varjeal]

Still not quite clear on how this tool works. Does pulling the trigger cause the key to slide in/out or up/down?

If it's up and down then it would require removal of milling on the key and a slight twisting motion to acquire the marks (unless the amount of movement it makes is minimal) in which case a pair of vice grips or clamping tool will perform the same objective, which makes this tool rather...umm...redundant.

So unless it's cheaper than a good set of vice grips I fully understand why I haven't heard of it before.

[Shrub]

I summised it actually worked like a pick gun in that it moved the key up and down which isnt what you want for an impression,

If it did move the key in and out you are not only fighting against your hand pressure pushing the tool into the lock but also would need to be sure the tool was held at the correct position very time you inserted the key so that the marks would be in the same place each time,

If you use the shoulder then theres no where for the key to push to so would just move your hand and the tool away from the lock,

We need more info on how it works and how it is used,

I will forget you suggested the bumpkey tool thing and put that down to a slip up on your part, of course i know what the discussion is about,

I have seen a tool made by someone who is no longer a member here that used a springs and a button on the face of a key grip, you inserted the key and pressed it on to the lock, when the button hit the lock it shot the key back a millimeter (estimate) thus marking the key,
I would think the picture of the tool is now removed but ill have a look for it.

[globallockytoo]

Still not quite clear on how this tool works. Does pulling the trigger cause the key to slide in/out or up/down?

If it's up and down then it would require removal of milling on the key and a slight twisting motion to acquire the marks (unless the amount of movement it makes is minimal) in which case a pair of vice grips or clamping tool will perform the same objective, which makes this tool rather...umm...redundant.

So unless it's cheaper than a good set of vice grips I fully understand why I haven't heard of it before.

Here is another picture from the older book....maybe it gives a better description...
http://i115.photobucket.com/albums/n283 ... mpGun2.jpg

I'll try to explain the theory too....this will help you...I'm sure.

I'm scanning in the origian pages now....might take an hour or so...but it will be quicker than typing all his theory in....hope you will be able to read it.

[Shrub]

I think it does look like it moves in and out actually rather than up and down, i am interested in the rest of the articles.

[globallockytoo]

Ok....not sure if this is going to work too well...

If you want it in a different format let me know and i'll try something else.

http://w115.photobucket.com/widgets/dyn ... %20Theory/

[globallockytoo]

yes ....it moves in and out....the theory was written in the early 1900's but little has changed and is still current.

[Shrub]

Page 12 is missing is that right?

I found it easier to go in through your bucket and simply save them off to read them,

[globallockytoo]

Did i forget pg12?


here you go...sorry about the confusion...

http://i115.photobucket.com/albums/n283 ... cn0012.jpg