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iggiebee: Sorry, when posting the tip for squaring the head of the mill didn't mean to come across as an expert geek, I have a small cnc milling machine, with a cad/cam program
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No offense intended, I appreciated the tip, it was just my sense of irony comparing the way the description made it sound so easy compared to the difficult task it appears to be with the Smithy.
Some ways you may be ahead of me, my machine doesn't have CNC, or even position readouts beyond the handle calibrations. I do have power feed of a sort, but it's limited. Makes it a real challenge to try and see where you are in the process of making a cut while dodging the coolant being splattered by the mill bit.
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Assuming when you mention the"cutter" that you are referring to an "end mill", and not to a "cutter wheel", my guess for the "up milling" or "down milling" is that you should cut the material always in the direction of the rotation of the quill (up milling), so the sharp edges of the tool will be "biting", not back-sliding against the material beingt cut.
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Yes, I was talking about an end mill, not a cutting wheel. I agree with what you are saying, and it seems pretty obvious when cutting along an edge which direction one should go, since only one side of the end mill is contacting the material. But when you are doing what I am, which is boring into the material, and then moving sideways, it isn't so obvious. It seems to me that the material will always be surrounding the mill bit the same way no matter what direction one cuts.
Gooserider