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... I guess this means taking a stab at figuring out how to offset square stock in a 4-jaw. Be prepared to laugh at me
My concept for off-setting the square stock in a 4-jaw is to use a Dial Indicator pointed at the centerline of the back side of the stock, and rotate the stock until all four sides show the same offset - namely, it's centered. Then pick an axis and offset it the required amount to bore the hole.
Measure the drill bit and put some tape on it. Drill down to the tape and stop. Tail stock and DI aren't needed for this one since precision is not needed. Just don't drill through the back of the cylinder. But if you do, just glue a brass disk over the hole and call it the head cover. DAMHIK.
I eyeballed the point of the drill at about 0.1" deeper than the full diameter
Quote I eyeballed the point of the drill at about 0.1" deeper than the full diameterFor future reference, given a standard, 118 deg point drill, the allowance for the point is 0.3 times the diameter.
Looking good, keep it coming Rayanth. Looks like you have figured a way to overcome your limitations with your tail stock drilling.Don