Fri Feb 28, 2020 11:38 pm by L4R3L2
I don't know if this will add anything to the discussion, but the 6730 I manipulated today is one of the tightest tolerance 6730 practice locks I have.
After I manipulated it, I ran some experiments in light of this thread. I ran each wheel for gate width, and found the following.
Dialing in .5 increments:
Wheel three opened at 96.5, 97.0, 97.5, and 98.0, giving an approximate minimum usable gate opening of 1.5.
Wheel two opened at 31.0, 31.5, 32.0, and 32.5, giving an approximate minimum usable gate opening of 1.5.
In each of these two wheels, there were two whole increment numbers on the dial that fell within opening range. Dialing by twos would find one of the numbers or the other. This lock is pretty tight, but wheel one was the tightest of the three wheels.....
Dialing in .5 increments:
Wheel one opened at 46.0, 46.5, and 47.0, giving an approximate minimum usable gate opening of only one. If gate center were shifted either way by .5, it could require scanning by ones to find the gate. So, I rechecked wheel one in increments of ~.25. In doing so, wheel one opened from 45.75 to 47.25, meaning that the actual usable gate opening was really at least 1.5. Even at 1.5, the edge of the fence could end up being just at or near the very corners of the gate when scanning by twos. The chances of this happeing is remote, and note that the usable gate opening was at least 1.5, meaning that a scan by twos would almost certainly pick up one side or the other. I've always been able to crack this lock dialing by twos, but 2.5 may not work for this particular lock, especially for wheel number one.