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First Time Fly Cutter Making And Using
- Thread starter atlas ten
- Start date
- Joined
- Sep 28, 2013
- Messages
- 4,392
that's a neat interesting design. Are you running your spindle in reverse? You may get better results with less overhang and the bulk of the flycutter body behind the cutter as it meets the work, instead of in front of it.
- Joined
- Nov 17, 2014
- Messages
- 173
Yes I ran it in reverse with that cutter. I will try again with cutter choked up tomorrow. I can use both left and right hand cutters in this fly cutter by pivoting the clamp. With pivoting clamp I may change contact angle of cutter to. I tried it way out in big sweep same results. I think I have to check the tramming of this mill. I might not have the fly cutter concentric with the spindle either. So many variables needing attention.
Jack
Sent from my SGH-I337M using Tapatalk
- Joined
- Sep 28, 2013
- Messages
- 4,392
concentricity of the cutter body with the spindle center line shouldn't have too big effect unless it's way out and causes vibrations to show up in the work. The cutter body is hanging quite a ways out of the spindle and the cutter quite a ways out of the body, so there's a lot of tool hangout there. The body is also quite long compared to the diameter of the shank that goes in the collet, which will add to potential flex. Finally, if you look at the clamp and body, there's a lot more meat behind the cutter when the cutting face is on the clamp side, ie. rotating clockwise, which might help too.
Lots of other things like speeds, feeds and tool grind. Remember that a fly cutter does most of it's cutting on the outside edge, not the bottom (unless you're boring a hole), so make sure it has appropriate angles on that edge.
Lots of other things like speeds, feeds and tool grind. Remember that a fly cutter does most of it's cutting on the outside edge, not the bottom (unless you're boring a hole), so make sure it has appropriate angles on that edge.
