Progress is made and disaster strikes . . . .
I started by cutting out the thimble on the lathe (some old bronze shaft I recovered from a wreck)
Then a tab gets welded on
After this it gets put into the mill and trued up then back into the lathe to be bored out (sorry forgot to take pics of that)
The tabs and tang also get welded onto the buss. As this was bored from a solid steel shaft there is no need for a breech plug.
Now I was slightly misleading when I said disaster strikes. The frizzen spring screw wouldnt hold the spring well and under inspection I found there to be no threads on it. Also the spring for the trigger was broken. To fix the frizzen spring I decided to try welding onto the original screw (much harder than it sounds due to the metal) and tap the hole to a slightly larger size. Of course to tap the hole I needed to remove the main spring which requires removing everything else.
The cracked trigger spring
The "glob" welded onto the original screw (to the left of the cock)
The "new" old screw with the new threads cut
As for the cracked trigger spring sometimes its best if somebody isnt around to tell you you cant do something.
I welded that up by just tapping it with the TiG pratically then quenched it in water, it took a couple trys of tempering but she is now back in the lock and it all functions great, the frizzen is the best its ever been.