Thread: Miller "Key Changes"

200317, 09:31 PM #11Member
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210317, 12:06 AM #12Member
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210317, 09:48 AM #13Member
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Consider a key for a lock with just two levers, with 6 possible cut depths.
For each of the 6 possible cuts for the first position, there are 6 possible cuts for the second position. This gives 6x6=36 differs which could be represented as follows :
1,1 1,2 1,3 1,4 1,5 1,6
2,1 2,2 2,3 2,4 2,5 2,6
3,1 3,2 3,3 3,4 3,5 3,6
4,1 4,2 4,3 4,4 4,5 4,6
5,1 5,2 5,3 5,4 5,5 5,6
6,1 6,2 6,3 6,4 6,5 6,6
For a key with three levers, 6 possible depths, we can take the 36 possible two lever keys and multiply by 6 for each possible cut for lever 3. Therefore there are 6x6x6=216 possible keys.
The same logic gives us 6x6x6x6=1296 possible keys for a 4 lever lock, 6x6x6x6x6 for a 5 lever lock and 6x6x6x6x6x6 for a 6 lever lock.
As BBE explained, not all of these theoretical differs will be used for various reasons.
I hope that clarified this and not made it more confusing instead!
...Mark

210317, 07:30 PM #14Member
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Hi Mark:
I don't see it. What are the numbers in the table?
1,1 1,2 1,3 1,4 1,5 1,6
2,1 2,2 2,3 2,4 2,5 2,6
3,1 3,2 3,3 3,4 3,5 3,6
4,1 4,2 4,3 4,4 4,5 4,6
5,1 5,2 5,3 5,4 5,5 5,6
6,1 6,2 6,3 6,4 6,5 6,6
You show the first number AND the second number ranging between 1 and 6. It seems to me that if the first number is the wafer/lever and the second number is the cut on that wafer/lever then the table represents the 36 possible keys for a 6lever lock.
Another way to look at it is when assembling a lock you can choose from 6 different levers for the first position, then again you choose from 6 different levers for the second position, and so on with only 36 possible ways to assembly the lock.
Have Fun,
Brooke

220317, 12:51 AM #15Member
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 Oct 2013
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Each pair of numbers represents the cut depth for lever one and lever two as follows (depth for lever one, depth for lever two).
So 1,1 means a cut depth of 1 for both levers.
1,2 means cut depth 1 for lever one, cut depth 2 for lever two.
4,6 means cut depth 4 for lever one, cut depth 6 for lever two.
The list I made above represents all 36 possibilities for a two lever lock.
...Mark

220317, 01:27 PM #16Member
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 Jan 2013
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Miller "Key Changes"
Mark
Just some question to ask. It is probable could have an "O" cut?......Timothy......

220317, 08:14 PM #17Member
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220317, 08:41 PM #18Member
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Hi: What is the meaning of those numbers?
It looks to be for 6 wafers/levers where each has 6 possible notches.
Have Fun,
Brooke

230317, 12:59 AM #19Member
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 Oct 2013
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Each pair of numbers represents a key for a two lever lock that has 6 possible cut depths.
The first number in each pair represents the cut depth for lever one. The second number in each pair represents the cut depth for the second lever.
For example 4,6 would mean cut depth 4 for lever one and cut depth 6 for lever two.
Six numbers would be needed to use this system to describe a 6 lever key.
Thank you for making that table, BBE.
...Mark

230317, 06:34 PM #20Member
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 Mar 2017
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Hi:
I see. So the listed "key changes" for the Miller locks are not based on the number of possible different keys, but on something else.
Have Fun,
Brooke
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