This is on topic because I fully intend to finish the job with CNC.
I have a sick shotgun in need of some magic TIG glue. 12 gauge by Henry Tatham of London c1840 .
It's the hammers. The left had it's spur brazed on and the brazing broke. The right is off a very similar gun and the geometry is a tadge out, it hits it's end stop just before it reaches the nipple.
I bought new castings but they don't quite clear the fence and they don't have the width at the bottom.
I have a TIG but I lack the skill. I fear I would burn the crap out of it and make things worse.
I need a lump attaching which I can carve into a new spur, the old spur being lost in a Surrey wood.
I need the square mounting hole closing on t'other so I can cut a new hole rotated by a few degrees.
Panic not, the gun is completely legal and I only need send the hammers.