End mills break when making a dog clutch

A bug like a rapid move through metal which had not yet been removed? I got bit by that fairly early on -- a 1/2" sold carbide cutter (well -- the bottom half of it) bouncing around the room made me dance a bit. :-)

Is this your first machining of 12L14? Isn't it lovely?

Enjoy, DoN.

Exactly.

Yes, I wonder why it is not available as rectangular bar stock.

its available. years ago, all the parts in my machine shop class were made with 12L14. When i started making my own stuff out of mystery metal, i broke a lost of tooling.

karl

Take the dog clutch you have been trying to match up to, and pull it straight out! Set it someplace where it will never be in your way again, and forget making a dog clutch to match it.

The dog clutch has a sleeve with a key way in it. This mates with the shaft to the bevel gear. Make your coupler with a key way in it to match the shaft, and FORGET the dog clutches.

Much, much simpler, and less of a chain of backlash.

So sorry I forgot to mention this before, it didn't click with me.. I once faced and solved the same problem, trying to figure out how to mate up with the dog clutch, then I simply pulled it out, and made a sleeve to replace it.