![]() ![]() ![]() Golf club shafts are built a little differently then rod blanks particularly when it comes to the alignment of the load bearing, graphite, fibers. If you go to this site then go to the application notes you will find a great deal of very interesting information about golf club shafts in general and also about their spine. Plus he has done a great deal of testing of golf club shafts and knows a great deal about them. I know John and he is a really nice guy, an engineer and very knowledgeable and also an excellent golfer. Kaufman Enterprises builds and sells several devices for measuring the characteristics, mainly the resonant frequency and torque, of golf club shafts. It is the web site of Kaufman Enterprises and is owned by John Kaufman. Here is a web site that I think you will be interested in looking at. Like Yogi Berra use to say, "the game is 80% mental, the rest is in your head"! I think I'll keep building my rods with attention to the spine. I used this driver Wednesday for the first time and it was the most stable and solid hitting driver I've ever hit in my life - golf is alot more fun when played from the fairway. This shaft has two spines exactly 180 degtrees apart so I set them at 6 and 12. I just picked up a titanium driver head and a premium Grafalloy shaft on the internet. If a shaft had two spines 180 degrees apart, then they were oriented at 6 o'clock and 12 o'clock (stabilizes toe droop during the swing). If a golf shaft exibited a single spine, it was oriented in the clubhead at 9 o'clock for accuracy, 3 o'clock for distance (that sounds familiar in rodbuilding). Lately in the golf circles, attention has been given to orienting the spine a certain way in golf clubs. Before I started rod building I played with building my own golf clubs. Include your actual First and Last name and a correct email address when registeringĭuring the years when I started following this forum, rods were built with consideration to the spine, this changed to the straightest axis, and eventually it really didn't matter. Registration is now required in order to post. Posts whichĪre inflammatory, insulting, or that fail to include a proper name and emailĪddress will be removed and the persons responsible will be barred from further Name and a correct email address when registering or posting. You must include your actual First and Last Same fashion in which you would like to be responded to. ![]() Participate in it are assumed to be civilized individuals who are kind andĬonsiderate in their dealings with others. ![]() Rules - Rod building is a decent and rewarding craft.It is the sponsor fees that pay for this message You may becomeĪ sponsor for a nominal fee. Manufacturers and Vendors - Only board sponsors are permitted andĮncouraged to promote and advertise products on the board.Products please remember those who sponsor this board. Question, answers or topics related in any way to custom building. Custom Rod Builders - This message board is provided for your useīy the sponsors listed on the left side of the page.FLO should be obtained when the spine is in the correct position, i.e, pointing towards the ceiling and twanging performed with that position in mind. What this shows is that if the shaft is positioned in the least optimal position it would be very inconsistent. By rotating the shaft 90 degrees in the vice clamp and then twanging the shaft again, you will notice that the shaft's tip will start by moving straight up and down then making a circular motion, changing into a horizontal back and forth motion, a circular motion in the opposite direction and even a straight up and down motion again. Ideally the shaft tip will bounce perfectly straight up and down without any curving oscillation. The butt end of the shaft is put into a rubber shaft clamp and placed into a vice. A small 205 gram weight is attached to the tip of the shaft then the tip is pulled down 4 to 6 inches and let go. This method is called twanging. This process identifies the flat line oscillation of the shaft. This is another procedure to understand and consider. ![]()
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