chieflittlehorse wrote:Some say the numbers in the MK bitting should not show up in any of the change keys
Incorrect. There is a "Rotating Method" which actually uses a MK bitting and it "rotates" through the bitting.
chieflittlehorse wrote:Some prefer use a shallow MK bitting for easier pinning and apply the above rule with it.
I use mix of both - shallow and deep.
chieflittlehorse wrote:Just what are your thoughts on masterkeying and how do you masterkey your locks?
It depends on project and product you want to use, and the structure and complexity of the system.
chieflittlehorse wrote:I myself will choose a random number...
Random number - that's a good start then follow the rest of rules.
chieflittlehorse wrote:...and only progress enought chambers for what I need or for expansion,...
You have to progress enough chambers for what you need AND for expansion, which usually is 50%.
chieflittlehorse wrote:...and a particular number in the MK will show up on some change keys on the way I do it.
So do you use "Rotating Method"?
DIY Dave wrote: you should avoid using pass keys that have only a 1 difference
You can use it, there isn't problem using a 1 cut difference.
DIY Dave wrote:Example
master 14356
pass 1 14352
pass 2 14354
pass 3 14358
pass 4 14350
don't use 14351 because it's only one cut different then pass key 4
I know this is an example, but... it is
wrong example, sorry.
A believe that "0 - zero" in your example is the smallest pin - shallow bitting/cut, therefore....
You should never - ever use a bitting /cuts lower than your MK bitting is !! As the change key can be re-cut to MK bitting.
So, from the example above the MK should be 14350 and the last 5th chamber is progressed. If the system is just KD (Key to Differ) then you can get 4 or 8 CK depends of the product you using. You can get away with 1 cut difference as the pinning wont use 1 master pin.
Again. It depends of the product you using as some have very big tolerance and even 2 steps cut difference may open and cause you a problem.
MK - Master Key
CK- Change Key
KD - Key to Differ
Progression - Combination