"Ed Huntress" wrote:

Interesting. I'm usually pretty fearless about grinding my own tooling,
so I'd be more inclined to try to make a gang slitter that would fin an
entire cylinder in one go.

That would put so much load on the workpiece and the tool that it probably
would tear the whole setup apart. Multi-feature form tools, which were used
a lot in production years ago, usually require serious engineering of the
setup and tuning of the tool to make it work.


We use carbide gang groovers in a few of our lathes at work. On a good day if the
programmer gets too agressive the spindle amp faults. On a bad day the poly belts slip
and burn up first. What a mess having plastic stuck to a poly vee style pulley.

Wes