oldlock wrote:I'm curious on how you can detect true gates that are mounted on rotating magnets ? How does the tentative feedback / feel process work with a magnetic field as part of the process ?
You mention the lock is master keyed - have you tried on any non-master keyed rotors ?
To be clear from the outset, I haven't ever tried picking an Evva MCS, but I do own one & feel that I have a good understanding for how it works.
Assuming that the rotors bind one at a time, or at least don't bind all at once when tension is applied (&the ball bearing removed/manipulated), a binding rotor should be detectable by the fact that it's magnet's poles will repel or attract the magnet in the tip of a pick moving fore and aft. A rotor that isn't binding would tend to mate it's unlike pole with the nearest pole on the pick tip & rotate as the pick moves fore & aft. A binding rotor can't move & should produce both attractive & repulsive forces as the pick tip moves fore & aft.
Detecting a binding rotor vs a correctly set rotor that has had the sidebar tooth enter it's gate may be impossible by hand - both would feel like a fixed rotor.
A rotor that is not bound & is free to rotate, shouldn't produce much feedback via the pick being moved fore and aft - as pick movement can spin it around.
A rotor that is binding cannot move, so it's magnet will interfere with fore and aft movement of a magnet tipped pick, by repelling or attracting the pole closest to the rotor.
Once a binding rotor is found, it may just (but I doubt it) be possible to detect when it has been set correctly through the tension tool, as it would turn very slightly further. If that isn't the case, it should be detectable by virtue of the fact that a previously non-binding rotor is now binding & therefore producing feedback when probed by the pick.
For the simplest case, with 4 rotors installed, tension is applied & the binding rotor located. Tension is removed & the binding rotor manipulated & tension reapplied. If no other rotors are binding, then the rotor being manipulated isn't set. If another rotor is now binding, the first rotor to bind has been set correctly. Now the new binding rotor is manipulated until another binds.
This may be an oversimplification, but it seems plausible if the rotors tend to bind one by one.
There is one non-master keyed rotor in the partially populated lock he picks in the YouTube video.