EVVA MCS - Gen 1 - 4 Rotors - Picked & Gutted

[@tumbl3r]

Great work man! Really enjoying watching your work on these!

[@LockFall]

thanks, glad it's been of interest!

[@deronchopathe3791]

Wow: Beautiful advance on this model! I hope to see a full picking soon. (And maybe some details about your tool? ;))

[@LockFall]

Thanks, will have more details in future videos with a full 8 rotor pick coming soon.

[@mr.e.436]

Congratulations! Well done!

[@LockFall]

Thanks, in case you haven't seen yet, full pick is up! kzbin.info/www/bejne/j5iYgXSVdpJqj6s

[@MMDeveloper]

Holy shit dude, just.. Damn... Well can take this lock off the list of unpickable locks now

[@LockFall]

hopefully in about a week I'll have up a full pick and gut video with 8 rotors :)

[@DonzLockz]

Nice job! Looks quite complicated. Cheers 👍🙃

[@-mh-]

Very nice! If you can determine which rotors are set correctly, the only way the lock could defend itself would be by not allowing you to set them correctly... That's the one thing that puzzles me about these particular four rotors: Why do they not magnetically interfere which each other and scramble when you release tension (which at least must happen when you turn the plug past the zero position)? What's the magnetic code on them vs. the gate positions? Do you have "magnetic field viewing film" that you could place over the rotors to visualize the polarization?

[@LockFall]

A stronger magnet might, but they are sized to not interfere with each other. The magnetic code doesn't align with the gates necessarily. Magnetic viewing film would only be useful from the side of the lock (impossible inside a door), and maybe even only disassembled. The next problem would be, the field doesn't relate to the gates since the gates need to all align to the aft position.

[@mh-]

It would be interesting to see the magnetic polarization of these four rotors when the gates are in the opening position. If that's e.g. SN SN SN SN, then there wouldn't be much to pick. If it's SN NS SN NS and no interference between them, then your rotor magnets are weaker than those that I remember. I always thought that a potential single disc picking method depended on the particular coding of the rotors. But I could be wrong.

[@LockFall]

I'm not sure exactly how you are thinking the operation works, but the polarization lines up the rotor with the key. The gates then have between 9-10 positions, so magnetically north could be in any of those 9 or so positions (the gate must align aft for the sidebar to open). If you take into account all 8 rotors and no master keying it's around 362,000 permutations possible. This pick would have been closer to 3,000 permutations possible I believe. But I think pretty safe to say it wasn't just random as I can be pretty consistent in this pick.

[@mh-]

I believe it's 8 potential positions per rotor. The question I'm asking is: Which are the acceptable angles (as defined by the gates) for magnetical North on these four rotors?

[@LockFall]

Yes though I was out of the house earlier, looking at the rotors it does seem 8 positions may be correct. But you just answered your own question. Say you fix North somewhere, you have 8 positions the gate can be in. Instead if you fix the gate position to the aft (open), there are 8 acceptable angles for magnetic North to be at on each rotor. Either way you look at it the result will be the same. Master-keying only reduces possible permutations.

[@ivaka911]

Next time do a real pick on a door not on the chair 🪑