Lathe Bullet

We were instructed to cad a fusion 360 model for a CNC lathe then cam it out and make the part. I decided to make a bullet for my part, we had to have life tooling a center bore and it had to be 3 inches long with the max of a 1 inch diameter.

Before I ran my part I did a graphical run on the Haas pendent to look for any errors in my code, after the graphical run with no errors we moved onto a dry run. For the dry run we just moved the stock all the way back into the chuck, then when we press go it doesn't actually cut the material so we can insure that everything is in tolerance and doesn't do anything we don't want it to. During the dry cut we noticed that the drill was acting like a live tool, so I went back and looked at my drill I had in fusion and it was checked off as a live tool. Fusion had the tool automatically on live tool, so I had to fix that and my dry run was looking good. Then I went to and actual run for my part I was told that I should mess overriding with the spindle speed and feed rate to make sure that everything runs smoothly. Even though I fixed the drill from being a live tool I was also long and not very rigid so when it went to drill into my bullet and make a center bore it shifted and went in twisted. A solution that I could come up with is to get a shorter drill and have it be more rigid so it doesn't shift next time. My bullet also broke off early before I could get the part cut off on there, this was expected because of how small and fragile my part is at the tip, but I could try to prevent it from falling off by instead of having the back half of the bullet being cut in one toolpath I could have it in two instead.