W.olly
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- Radcliffe, Manchester
watch who to learn from ?W.olly, watch n learn, and most important, do….then you learn
thin k i am missing soemthing here lol
watch who to learn from ?W.olly, watch n learn, and most important, do….then you learn
Practising is fine for learning, but its not till your machining something important that you'll make quality cock ups!quit enjoying this just machining bits of metal, even though i am not actually making something.
one of my friends with a bridgeport mill could never get a good finish and my nephew a toolmaker said angle the head a fraction in the direction of cut that instantly cured it
explain ? Just because the head is tilted .5 of a degree or 20 makes no odds…..the table still runs left to right under a spinning tool, except its only cutting on one side.If the head is not perfectly trammed in to vertical, you will be milling a bowl, not a flat. Surface finish is secondary to flatness in my book.
explain ? Just because the head is tilted .5 of a degree or 20 makes no odds…..the table still runs left to right under a spinning tool, except its only cutting on one side.
Makes sense….Talking about a large diameter flycutter in this example but true for any surface finishing cut.
If the head is tilted, the cutter will make a scooping cut or concavity.
Exaggerated here so you can see the effect. Also no back cut as the cutter is lifted away from the plane. Someone already mentioned the lack of any back cut is a sign you might be out of tram.
Two things to note: The larger the diameter of the cutter wrt to the workpiece, the lower the effect of the scoop cut.
Secondly, do this with a small diameter face mill or end mill and you'll be making a series of ruts albeit at a much smaller scale.