Fritz the Cat wrote:I want to build a laser rig very soon asI have 2 safes to open .A Sentry and a Wards 9007 (Meilink). Its supposedto have a lock simular toa S & G 6709.
Good to cya around Fritz
What you have is two different safes with two very different types of locks.
The laser rig would be applicable only to your Sentry. The lock on your Meilink is a different ball game.
The combination lock used in your Sentry safe is referred to as a 'Direct Entry' or 'Straight Tailpiece'.
To get an image in your mind, look at the very last picture in Daggers' post
HERE. Or look at
THIS.
Take a look at the tailpiece near the wheel pack. It basically looks like a piece of flat stock and is
directly connected to the bolt work and/or handle. Turning the handle slides this piece up against
the wheel pack. So now you can see how the handle becomes a sort of 'conductor of clues' really.
By precisely measuring handle movement we can determine just how much the tailpiece has been
allowed to penetrate/enter into the wheel pack.
Fritz the Cat wrote:Still trying to get in my mind exactly whats happenning .
Question,To get something towork with like laser beam movement .How does the movement transmitt motionthru the bolt face tothe handle.Pictures of locks simular shows the handle contact the top of the bolt not the front ?UnlessI'mwrong..
So if you're looking at pictures of your Meilink and you're left scratching your head as to
how handle movement would help you crack the combo... that's the correct reaction. lol
There's two separate things at play here; the
locks' bolt... and the
doors' bolt work.
The lock bolt is retracted first (via the dial - final turn right after combo retracts the bolt).
With the lock bolt out of the way, the doors' bolt work can now be retracted via the handle.
So like I say, approaching this lock is entirely different and doesn't involve handle movement.
If you're interested in learning manipulation, there's some good places to get started nowadays.
Matt Blaze's paper, "
Safecracking for the Computer Scientist" is in the public domain for free.
Daggers wrote a book, and
Femurat has a great write-up to get started right here in the forum.
The 'dark-ages' seem to be coming to an end as I see manipulation books on ebay & Amazon.
.
.
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By the way, the unbranded lock on the Montgomery Ward (Meilink) safes were produced by
a company called Center Manufacturing. And while at first glance they may seem rather cheap
in comparison, don't underestimate them. My first run in with one left me rather disheartened.
However, they have a '
somewhat' predictable personality after you've talked with a few of 'em.
The wheels are stamped/pressed out of plastic or delrin. This process often (but not always)
produces a small tab on the outer edge of the wheel -
which happens to be located directly
opposite the gate :) So rather than look for low areas, look for the highs. These tabs will
usually produce peaks in your readings that span 4-7 incs wide. ie. If you find the center of
a peak to be at 0, the gate for that wheel will be around 50. More examples; 41 would be 91.
16=66... 37=87, etc. Find exact center for the peak, then add 50 to land you directly opposite.