- Joined
- Jan 11, 2018
- Messages
- 308
I finally got fed up waiting for the 7 degree end mill to show up yesterday. I decided to try using the 3D steep wall contour function in Fusion 360 to accomplish that cut. I used a .008" DOC which translates to roughly .001" step over per pass. It worked great and you can't tell that it was done with a square end mill. I got all four tools that I designed completed.
The first picture is right off the mill. I tapped the hole with my Tapmatic on my drill press.
The second picture is all of the tools, LH -5 degree, 40 degree, RH -5 degree, flycutter.
The last picture is of a piece of 6061-T6 that I cut with the fly cutter. I wound up using 2000 RPM, 10 IPM and .010" DOC. The finish was mirror like. I had a hard time getting a picture of the surface. I'm sure the tool can handle more, but it isn't balanced and anything over 2000 RPM made the machine vibrate more than I was comfortable with. I'd really like to make a balanced cutter head now.
The first picture is right off the mill. I tapped the hole with my Tapmatic on my drill press.
The second picture is all of the tools, LH -5 degree, 40 degree, RH -5 degree, flycutter.
The last picture is of a piece of 6061-T6 that I cut with the fly cutter. I wound up using 2000 RPM, 10 IPM and .010" DOC. The finish was mirror like. I had a hard time getting a picture of the surface. I'm sure the tool can handle more, but it isn't balanced and anything over 2000 RPM made the machine vibrate more than I was comfortable with. I'd really like to make a balanced cutter head now.