BallReviews
General Category => Drilling & Layouts => Topic started by: dR3w on May 22, 2015, 01:12:43 PM
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I switched to ovals about a year (I drill for myself). I have noticed that my spans seem to be a little more inaccurate now, especially my middle finger. My drilling angle is about 50 degrees (Right Handed), so if you look at my thumb, the top part of the hole isn't in the center of the hole anymore (on the drill centerline), it is actually to the left.
When you drill ovals, do you always measure your spans from the grip centerline, top of the thumb, to the bottom of the finger holes? I find that after the oval is drilled the span gauge kind of wants to slip to the left as I am marking the holes, and I don't always get a consistent span. I have seen a maximum error of about 1/16" in some of my spans.
I always drill thumbs first, as that is the way that I was taught.
Anyone have any suggestions, tips or tricks they could share?
Drew
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I think the measurement should be consistent or if you measure from the highest point of the oval you should every time...how you measure do it the same every time
If the middle finger feels longer you've prolly inadvertently shifted the thumb right by drilling the oval or forcing the thumb under more
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If you are using a slug shift it right 1/16 then drill your pilot hole on the centerline.
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There is no set or generic number to shift it...it would be based on the size of the oval
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Yes your highness
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Drill thumb first. If you do that then its just a matter of hitting lines on the fingers. It wont matter if you cut forward or reverse at that point either.