Rifling the Model Armstrong RML

P1053702

The HSS cutter is mounted in a tight 3mm wide slot in 16mm silver steel.  The 4 mm cap screw pushes the cutter up by 0.2mm per full turn of the screw.

The following video shows an air cut of the rifling cutter in the CNC rotary table on the CNC mill table.   Then some actual cuts in a 1:10 scale cannon barrel.  This barrel was a reject, and was used to practice the rifling cuts.

You can click on the arrow in the box below, or see the video full screen in YouTube.