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garyb

EFFECTIVE ?EFFECTIVE ENGINEERING SPLINE

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An article in the Fisherman Dec.5,1996 has a quote, "The effective spline will be found where the rod jump sand comes to rest.The phrase AND COMES TO REST is very important because one can't stay on the EFFECTIVE ENGINEERING SPLINE and be at rest."

 

The effectice spline is defined as the axis 90 degrees at right angles to the effective engineering spline.

 

In reality,the effective spline is the spline the guides go on. One is located to the right, one to the left.

 

What are your comments?

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Stated simply, the "effective spine" of a blank is that position that the blank seeks when it is stressed from fighting a fish. The guides should be positioned either on the "effective spine" or 180 degrees to it depending on the spicific application.

 

If the guides are not positioned correctly in relation to the "effective spine" then the rod will twist and torque trying to come to rest. The result is the blank twisting and eventually breaking due to the stress.

 

I will be demonstrating this at my upcoming workshop in February.

 

Al

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