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- Apr 23, 2018
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The centerline matters, because your leade angles change very quickly in relation to centerline offset.
Left hand and right hand works like identifying chirality in o-chem, remember dextra- and levorotary enantiomers... Hold out a hand like a lathe tool holder and point in the direction of cut- if your left index finger points right, it's a left hand tool, if your right index finger points left, it's a right hand tool... on the lathe. What's confusing is the tool is upside down and running backwards in your case, so upside down plus counter clockwise equals left hand tool. Vertical flycutters running vertical bits turning clockwise also use a left hand tool. Traditional right-had flycutters run right hand grinds when running clockwise. Clear as mud?
Left hand and right hand works like identifying chirality in o-chem, remember dextra- and levorotary enantiomers... Hold out a hand like a lathe tool holder and point in the direction of cut- if your left index finger points right, it's a left hand tool, if your right index finger points left, it's a right hand tool... on the lathe. What's confusing is the tool is upside down and running backwards in your case, so upside down plus counter clockwise equals left hand tool. Vertical flycutters running vertical bits turning clockwise also use a left hand tool. Traditional right-had flycutters run right hand grinds when running clockwise. Clear as mud?