Base of Skull (if that is what Homer used as definition, this where all head motion on it own originates from)
Base of Neck (difference may be minor depending on the head orientaion which means it would only change the position on the ground by less than a few inches)
Interesting, this really coming down to an attempt to define a Fix Point in space that is sort of (words choosen carefully) independent of the body, but yet required percision to support proper and correct geometric alignments....
This would make it a Horizontal Hinge Pin (Perpedicular to the ground) at all times no matter what components/variations have been selected.
Martee,
I know what you are saying here, and I'm not trying to be picky, but since you have raised the issue, I do think it is important to get it exactly right.
The Pivot Center hinge pin is vertical -- not horizontal -- to the ground. Its purpose is to anchor the Pivot, not to produce a specific plane of motion. Thus, it is not analagous to the Hinge Assembly of 1-L #4 and 2-G that controls the Clubface and Clubshaft and their respective planes of motion.
That Hinge Assembly contains two vertical pins, one to control the Clubface and one to control the Clubshaft. The Clubface Control pin is positioned vertical (perpendicular) to one of the three Basic Planes -- Horizontal, Vertical or Angled -- in order to produce a specific Clubface Motion (Close only, Layback only or simultaneous Close and Layback). The Hinge Assembly is then named according to plane of Clubface motion it produces, i.e., Horizontal, Vertical or Angled. In each case, though, the hinge pin itself is vertical to its Associated Plane.
The Clubshaft Control pin is likewise positioned vertical, but only to the Vertical plane. This pin permits the Clubshaft to be lowered (vertically) from either the Horizontal or Vertical Clubface Control Hinge onto the Inclined Plane. No such pin is necessary for the Angled Hinge Assembly because that arrangement automatically produces an On Plane Clubshaft.
The Left Wrist also contains a vertical hinge pin, and it is for Clubhead Velocity Control. It is positioned vertical to the Vertical plane and permits the perpendicular Cocking and Uncocking of the Left Wrist (2-K #5). It does not permit any Left Wrist horizontal motion, i.e., Bending or Arching. However, it does permit Left Wrist rotational motion as produced by the swivel action of the Forearm (2-K #4).
I know what you are saying here, and I'm not trying to be picky, but since you have raised the issue, I do think it is important to get it exactly right.
The Pivot Center hinge pin is vertical -- not horizontal -- to the ground. Its purpose is to anchor the Pivot, not to produce a specific plane of motion. Thus, it is not analagous to the Hinge Assembly of 1-L #4 and 2-G that controls the Clubface and Clubshaft and their respective planes of motion.
That Hinge Assembly contains two vertical pins, one to control the Clubface and one to control the Clubshaft. The Clubface Control pin is positioned vertical (perpendicular) to one of the three Basic Planes -- Horizontal, Vertical or Angled -- in order to produce a specific Clubface Motion (Close only, Layback only or simultaneous Close and Layback). The Hinge Assembly is then named according to plane of Clubface motion it produces, i.e., Horizontal, Vertical or Angled. In each case, though, the hinge pin itself is vertical to its Associated Plane.
The Clubshaft Control pin is likewise positioned vertical, but only to the Vertical plane. This pin permits the Clubshaft to be lowered (vertically) from either the Horizontal or Vertical Clubface Control Hinge onto the Inclined Plane. No such pin is necessary for the Angled Hinge Assembly because that arrangement automatically produces an On Plane Clubshaft.
The Left Wrist also contains a vertical hinge pin, and it is for Clubhead Velocity Control. It is positioned vertical to the Vertical plane and permits the perpendicular Cocking and Uncocking of the Left Wrist (2-K #5). It does not permit any Left Wrist horizontal motion, i.e., Bending or Arching. However, it does permit Left Wrist rotational motion as produced by the swivel action of the Forearm (2-K #4).
So, in The Golfing Machine®...
There are no horizontal pins.
There are no angled pins.
There are only vertical pins.
I agree need to be correct..
No Horizontal pins, I stated Horizontal Hinge Pin, 1-L is labeled Horizontal Hinge Pin...Now I am really confused, cause I went to 1-L and used the percise terms/words that are in the book.
I did note that the pin itself was perpendicular to the ground cause we had this dicussion on hinge pins and vertical before, where my preferrence is to use perpendicular cause of it normal reference of the word vertical and horizontal.
So you are telling me that my label is incorrect? If so then my use of 1-L was totally misplaced...and .... I really need help here. The label on 1-L is rather clear to me...
No Horizontal pins. I stated Horizontal Hinge Pin, Sketch 1-L is labeled Horizontal Hinge Pin...Now I am really confused, cause I went to 1-L and used the percise terms/words that are in the book.
So you are telling me that my label is incorrect? If so then my use of 1-L was totally misplaced...and .... I really need help here. The label on 1-L is rather clear to me...
I understand your confusion, Martee, and it gets worse...
In addition to the Horizontal Hinge Pin label you see on Sketch 1-L, you also see an Angled Hinge Pin. The labels are indeed clear, and they are seemingly in direct conflict with my post stating there are only vertical pins. What's going on here?
The key is in how you read the words:
HORIZONTAL HINGEpin...the (vertical) pin of the Horizontal Hinge. Not a HORIZONTALhinge pin.
ANGLED HINGE pin. The (vertical) pin of the Angled Hinge. Not an ANGLEDhinge pin.
I think you are really on the right track here with your illustration of the Pivot Swing Center Tripod. It is the first time anything like this has been done, and I commend you for it.
Based on the logic of our prior posts, please re-label the Horizontal Hinge Pin to Pivot Center Hinge Pin and repost. Thanks!
PS I really think that Homer's incubator ultimately would have given him the Pivot Stroke Center Tripod (for consistency with the Swing and Hit differentiation) but, oh well...
I understand your confusion, Martee, and it gets worse...
In addition to the Horizontal Hinge Pin label you see on Sketch 1-L, you also see an Angled Hinge Pin. The labels are indeed clear, and they are seemingly in direct conflict with my post stating there are only vertical pins. What's going on here?
The key is in how you read the words:
HORIZONTAL HINGEpin...the (vertical) pin of the Horizontal Hinge. Not a HORIZONTALhinge pin.
ANGLED HINGE pin. The (vertical) pin of the Angled Hinge. Not an ANGLEDhinge pin.
To the thief on the cross:
I tell you today, you will be with me in paradise.
vs.
I tell you, today you will be with me in paradise.
I understand your confusion, Martee, and it gets worse...
In addition to the Horizontal Hinge Pin label you see on Sketch 1-L, you also see an Angled Hinge Pin. The labels are indeed clear, and they are seemingly in direct conflict with my post stating there are only vertical pins. What's going on here?
The key is in how you read the words:
HORIZONTAL HINGEpin...the (vertical) pin of the Horizontal Hinge. Not a HORIZONTALhinge pin.
ANGLED HINGE pin. The (vertical) pin of the Angled Hinge. Not an ANGLEDhinge pin.
Drawing updated, at least I understand what is being said, still think 1-L needs some work...
great discussion guys. this is going to the cusp of the problems i feel are associated with the golfing machine models. specifically with the axis is rotation of the shoulders turn component and its relationship to the ball location and the the corressponding axis tilt. all the best
Linear Mode
