The Resurrection of the 787 (cutaway)

[n2oah]

Sorry about the photos, I was too excited to manually set my camera up. This isn't quite finished yet, I still need to paint the back plate.





The 787 presented some unique technical challenges. First of all, it had to be mounted on something to stay together, so I had to create a back plate out of the (broken) mortise fixture the 787 came on. Second, the lock is not field-servicable, which means you can't take it apart without damage. So you must create a hole in the lock. This requires careful drilling and punching. Finally, to show the backbar (it's like a sidebar) you had to cut through some critical areas. One part of the lock that keeps it from rotating when the sidebar isn't engaged would fall out if that area was cut out. I had to cut the area out, but I had to have the piece in for the lock to operate properly. So I used some thread-locker type stuff to keep it in.
Here's the only damage I did to the lock (where it needed to be drilled):

[greyman]

n2oah, let me know how you go picking it!
Nice job, although a shame to cut into such an amazing lock.

[Schuyler]

you're absurd. I'd feel lucky to get to nose around your collection some day.

[Kaotik]

That's for sure, and I really woudn't mind having one. Good job on the cut-away, it looks great.

[n2oah]

That's for sure, and I really woudn't mind having one. Good job on the cut-away, it looks great.

Well, if you want to check it out (some new photos, too), search "Fichet 787" on ebay.

[greyman]

n2oah, just a small point: doesn't the lock need the sidewall of the cylinder to keep the levers properly registered with the cogs? I wouldve thought they'd overrotate if you let them push out too far.

[n2oah]

I wouldve thought they'd overrotate if you let them push out too far.

Yes, it is possible that they could overrotate, but the spring force is great once the levers get out too far. It is also difficult to push anything up into (even a pick) the chambers to get the levers to overrotate.

[n2oah]

I wouldve thought they'd overrotate if you let them push out too far.

Yes, it is possible that they could overrotate, but the spring force is great once the levers get out too far. It is also difficult to push anything up into (even a pick) the chambers to get the levers to overrotate.

Basically, I mean that it's not possible under normal operation.