Ok, I got bored of the weekend and now with my knee mill back in service I made a cutaway of my 0883!
Turns out just about everything bows at the alter of the mighty ENDMILL
With the side opened up i could see what had to me moved and I opened the shackle, tore down the lock and made a few finish passes to clean up the cutaway.
I've got the 6 discs i expected, numbered similar to the ones in the RR locks. My lock only has 3 different discs, but their orientation matters.
Do the 0, 2, and 4 discs in the RR locks really not have a number on the back?
From the tip of the key:
Disc 2/3 3 facing the bow
Disc 1/4 1 facing the bow
Disc B/0 0 facing the bow (this is the disc to use when turning the cylinder)
Disc 2.3 3 facing the bow
Disc 1/4 4 facing the bow
Disc 2/3 2 facing the bow
The 4th (from the bow) position that turns the cylinder looks like the blank won't need to be cut at all.
The numbers that face the bow count from smallest cut to largest cut.
I think this key should be called a 3-1-0-3-4-2
Does anyone have a key for a 0883/0881?
Can you measure the angle between your cuts?
I'm inclined to guess the cuts are 0 - 15 - 30 - 45 - 60
If those are the angles, a 1/4 disc can be installed to require a 15 or a 60 deg cut while a 2/3 disc can require a 30 or 45 deg cut.
I think a 90 deg cut would leave too little key for reliable long term operation, is a 75 deg cut the same way? Could there be 0/5 discs in the wild?
Could there be alternate driver discs? Like a B/1 through B/4 ?
Do we think the driver disc is always in that 4th position?
Here's that cutaway, because who doesn't like a lock with a big hole in it?