Some thoughts to consider regarding Low Point and Low Point Plane Line
1. Low Point is defined by the lead edge of the club head or the sole of the club head based on the stroke being played in referenc to the ground.
2. Low Point Plane Line is defined using the Low Point and constructing a parallel line to the Plane Line.
3. Low Point is not defined as full extension of the Primary Lever Assembly.
4. Low Point does not have to reside in the ground or at ground level (special shots, tee shots, putts, any shot that doesn't create a divot)
Some thoughts to consider regarding Impact Point and Impact Point Plane Line
1. Impact Point is define as the first moment of contact between the club head and the ball. (Ideally on normal shots this would be at the equator to the inside of the ball vertical axis)
2. Impact Point Plane Line is defined using the Low Point and construction a parallel line to the Plane Line.
3. Impact Point is only on the Impact Point Plane Line at the initial point of contact and can be located on the Impact Point Plane Line after separation based on the stroke.
4. Impact Point and Separation can not be the same point.
5. Impact Point is normally inside and above the Separation Point which both are above the Low Point. (3 dimensional golf stroke)
Next what is the impact of the ball location with regard to Low Point?
Some thoughts to consider regarding Low Point and Low Point Plane Line
1. Low Point is defined by the lead edge of the club head or the sole of the club head based on the stroke being played in referenc to the ground.
2. Low Point Plane Line is defined using the Low Point and constructing a parallel line to the Plane Line.
3. Low Point is not defined as full extension of the Primary Lever Assembly.
4. Low Point does not have to reside in the ground or at ground level (special shots, tee shots, putts, any shot that doesn't create a divot)
Some thoughts to consider regarding Impact Point and Impact Point Plane Line
1. Impact Point is define as the first moment of contact between the club head and the ball. (Ideally on normal shots this would be at the equator to the inside of the ball vertical axis)
2. Impact Point Plane Line is defined using the Low Point and construction a parallel line to the Plane Line.
3. Impact Point is only on the Impact Point Plane Line at the initial point of contact and can be located on the Impact Point Plane Line after separation based on the stroke.
4. Impact Point and Separation can not be the same point.
5. Impact Point is normally inside and above the Separation Point which both are above the Low Point. (3 dimensional golf stroke)
Next what is the impact of the ball location with regard to Low Point?
How does Ball Height from the ground impact this?
Martee! Super graphics man! Question. . . on the overhead view . . . could you draw the LOC in there too? Since we are of course sustainers and manipulators of the LOC.
Awesome!
I think the height of the ball has nothing to do with it. But I do think the position of the ball in relation to low point has a HUGE effect.
The intent of the graphic was to show relationships. Including the LOC would require adjustment, need to think about this.
Ball Height is CRITICAL to Low Point and to Ball Position. Also Ball Position is critical to Angle/Arc of Attack.
If you were to position a golf ball in what would be your normal position, say for a 7 iron. Let say that was 1 inch forward of the center of your stance.
Now without making any adjustments, place a ball located off your rear foot, resting on the ground as was the original ball.
With the 7 iron how would you be able to hit the ball nearest your rear foot? Without adjusting your body or swing, what adjustments do you need to do to the ball to be able to make impact with the sweetspot of the club? Raise the Ball? Move the Ball in closer to the rear foot?
Granted doing this will not send the ball along the same target line that the center ball would, but this allows you to see the 3 dimensional golf stroke, backward, in and up, forward down and out.
When a golfer decides to change ball location, the golfer is required to make other adjustments as well to keep the 3 dimensional stoke in tact and make good contact.
Ever give much thought about hitting a ball which is lodged in a bush? Do you set up as normal but that the ball is just teed high?
The intent of the graphic was to show relationships. Including the LOC would require adjustment, need to think about this.
Ball Height is CRITICAL to Low Point and to Ball Position. Also Ball Position is critical to Angle/Arc of Attack.
If you were to position a golf ball in what would be your normal position, say for a 7 iron. Let say that was 1 inch forward of the center of your stance.
Now without making any adjustments, place a ball located off your rear foot, resting on the ground as was the original ball.
With the 7 iron how would you be able to hit the ball nearest your rear foot? Without adjusting your body or swing, what adjustments do you need to do to the ball to be able to make impact with the sweetspot of the club? Raise the Ball? Move the Ball in closer to the rear foot?
Granted doing this will not send the ball along the same target line that the center ball would, but this allows you to see the 3 dimensional golf stroke, backward, in and up, forward down and out.
When a golfer decides to change ball location, the golfer is required to make other adjustments as well to keep the 3 dimensional stoke in tact and make good contact.
Ever give much thought about hitting a ball which is lodged in a bush? Do you set up as normal but that the ball is just teed high?
Martee . . . I don't think the ball in relation to the ground has anything to do with it. Could be wrong though . . . but Low Point has no relationship to the ground. Its relationship is to the left shoulder. Regardless of where the ball is air or ground, there is a low point. You could tee up a driver and play it way back in from low point and still hit it. You'd just have to go out more right? Heck if I know.
Anyway . . . The Line of Compression is the Principle of Golf so it HAS to be relevant to the discussion.
LINE OF COMPRESSION Example – bullet hole through a baseball
Mechanical – the line through center of that area from which material flows when displaced by a compressing force.
Golf – The direction of the Impact Force, as related to the various centerlines, for determining Ball Behavior
My arguement would be the following:
Per 1-L #10,13, 14, & 15
10. The Lever Assembly must be driven through Impact by an On Plane force (moving toward the Plane Line).
13. The Clubhead travels Down-and-Out until it reaches its “Low Point.”
14. Divots are taken “Down-and-Out” – not just “Down.”
15. The Club starts up-and-in after “Low Point” but thrust continues down plane during the Follow-Through.
So the Line of Compression would have a relationship (or be along) the Angle of Approach which would just be the line connecting the Impact Point and Low Point?
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Last edited by 12 piece bucket : 09-25-2006 at 12:04 PM.
Low Point Reference to the ground is because it is where it is located, at least the relationship for up and down.
Full extension of the primary assembly defines the longest radius of the golf stroke from the left shoulder.
Left shoulder relationship to the low point ??
Your question initially was regarding the impact point to low point and thier respective plane lines.
The amount of down and out is to a large degree defined by the incline plane angle.
The reason for the test of the two balls was to demonstrate the 3 dimensional stroke, to show that the impact point is relative to ball position when the swing center remains constant. The converse to this would be to change the incline plane angle, ball position the same and note the change both in height relative to the ground and position to the target line of the Low Point.
Low Point in essence is the point at which the golf stroke changes from the down stroke to the forward stroke.
Very cool graphics, should be etched in the mind of every hacker, starting with me!
Questions(aside from the original how far question):
1)In overhead view, I assume that the red and green lines could converge then seperate again if you changed the ball position, plane angle?
2)Again in overhead view, the clubface angles seem a bit eccentric, is that for clarity?
CW
You got it . . . As the ball moves farther back of low point the distance between the Impact Plane Line (red) and the Low Point Plane Line (green) increases . . . But they are ALWAYS parallel because the both lie on the Plane. And if the ball is positioned AT LOW POINT the lines converge and are the same.
Not sure about the clubface angle . . .
But golf clap to Martee for some fantastic work!!!!
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