Tin Falcon
Well-Known Member
- Joined
- Jul 9, 2007
- Messages
- 7,207
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Guys:
I have not been making many chips in the shop lately . Lots of distractions with life. I have a project on the shelf I decided to move forward on . It had a hole 2" diameter by .600 deep I needed to open it up to 2 -11/64
I did not feel like changing the setup on the lathe to use the face plate. And my boring head for the mini mill only goes to 1 1/2. So says I lets try the fly cutter . So I ground up a cutting tool for the 2" fly cutter. It took a few cuts and a little treaking of the cutter. It was rubbing at first then digging in and stalling the machine. By the time I took the final cut I had it cutting nice . Now why couldn't I get it cutting good on the first cut arrgg!!
Anyway I was hoping to get a tolerance of +.005 -000. well it was more like plus .010. The Inspector and supervisor both approved it. They are both easy folks to get along with. This is the home shop after all. I would not try this on a cylinder bore or press fit but if you just need a basic clearance fit it works great. the tool advance was a small soft face hammer and I used the digital calipers to measure movement.
Caution: The but end of the cutter can cause problems trim to keep inside the tool holder if needed.
Curious has anyone else tried this. ??
Tin
I have not been making many chips in the shop lately . Lots of distractions with life. I have a project on the shelf I decided to move forward on . It had a hole 2" diameter by .600 deep I needed to open it up to 2 -11/64
I did not feel like changing the setup on the lathe to use the face plate. And my boring head for the mini mill only goes to 1 1/2. So says I lets try the fly cutter . So I ground up a cutting tool for the 2" fly cutter. It took a few cuts and a little treaking of the cutter. It was rubbing at first then digging in and stalling the machine. By the time I took the final cut I had it cutting nice . Now why couldn't I get it cutting good on the first cut arrgg!!
Anyway I was hoping to get a tolerance of +.005 -000. well it was more like plus .010. The Inspector and supervisor both approved it. They are both easy folks to get along with. This is the home shop after all. I would not try this on a cylinder bore or press fit but if you just need a basic clearance fit it works great. the tool advance was a small soft face hammer and I used the digital calipers to measure movement.
Caution: The but end of the cutter can cause problems trim to keep inside the tool holder if needed.
Curious has anyone else tried this. ??
Tin