Created a bump key with a file - feedback on quality

[ausbump]

As above, created a new bump key with one of about 10 spare keys i have. The type of key is the lockwood i think "C4" but because of a lack of templates i had to make it entirely by guesswork.

I haven't been able to get it to work. Any idea?

Two photos of the key below, one with a comparison

http://www.neozap.com/upclose.jpg
http://www.neozap.com/side.jpg

I know my technique (what technique ) is no good, but is the key ok? [/url]

[skold]

1. That is too shallow for a bump key. You need to have a lockwood cylinder and a lockwood #9 pin handy to get accurate depths.

2. use a 3- 3.5mm chainsaw file, as you cuts are to narrow.



If you want i can make you bump keys for a 5 pin C4 profiled lockwood cylinder. PM me if interested.

[ausbump]

Right, i'm not entirely sure what you mean by 'narrow' cuts?

[mrdan]

Looks a bit too shallow and inconsistant. (pretty good for using a file and fre-handing it) Have you tried to use it yet??

[ausbump]

Yeah i've tried it. No dice. It's my first key and it was all by hand no template.
My technique probably sucks though, and the videos on the net are very pathetic.

[skold]

Hand Bump Key:

[mrdan]

Yeah i've tried it. No dice. It's my first key and it was all by hand no template.
My technique probably sucks though, and the videos on the net are very pathetic.

Yah! freehanding keys has got to be difficult to perfect. Very usefull skill to master.

[ausbump]

Can say that again. But look at skold's. Now that's quality

[ericm115]

wowser bowser skold p\/\/ns.

i want mad skillz too

[ericm115]

forgive me for straying a bit from topic, but this isnt new-topic worthy... (it IS reply worthy though).

I went up to the roof of my apartment building just exploring. the door to the roof had a single deadbolt on it (with a keyhole on both sides). it was unlocked... it was entertaining because the front of the lock showed evidence of violent bumping. haha...

(and no, it wasn't me!. I'm a terrible bumper and I practice good ethics. but I still went on the roof )

[ausbump]

VIOLENT bumping! Well.. watch out then.
Isn't snap gunning about as effective as bumping?

[zerokool]

I also just made a bump key but its for a kwikset doorlock. Below are before and after's :

Before:


Before :


After :


I was actually using a chainsaw sharpener and a diamond knife sharpener.
Still no luck on bumping. I'm trying to DIY bump keys till i get money to buy a set of picks.

So tell me wat i need to fix. Other than gettting a better quality camera lol

[Delta]

From your pictures it looks like you only cut positions 1, 3 and 5?

[pinsetter]

Yep zerokool, your key doesn't have enough cuts. There have to be peaks for all 5 pins.

To original poster: It appears that not only do you need to clean up and respace your cuts, but from the pic it looks like you also took way too much off the shoulder of the key. You only want to take off just enough to let the peaks start under the pins. Don't forget to also take a little off the tip of the key so it won't hit the back of the cylinder.

[Shrub]

Zerokool, what you have done is to not read the key quite right, youve missed no cuts or very shallow cuts and only filed the ones you had that were deep,

You will have to restart im afraid,