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How to spine a tapered shaft?

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Pat B:
If you take one of the posts and make it movable so you can have the caliper at "0" and the shaft touching it at "0" then it will read the correct spine of any shaft, tapered, crooked or straight. You have to make this adjustment with each of the 4 sides so you can find the still side and get the spine of the arrow.

Sammakesbows:

--- Quote from: Pat B on July 11, 2020, 06:38:13 am ---If you take one of the posts and make it movable so you can have the caliper at "0" and the shaft touching it at "0" then it will read the correct spine of any shaft, tapered, crooked or straight. You have to make this adjustment with each of the 4 sides so you can find the  still side and get the spine of the arrow.

--- End quote ---
Do you make the adjustments before or after putting the weight on? Because a tapered shaft is still straight (not parallel). From what i read, you zero in the calipers before you put the weight on.

JackCrafty:
Tapered shafts are spined exactly like parallel shafts. No one, that I know of, does it any differently.

There is a difference in the dynamic spine but you will confuse your customer if you try to compensate for that on the spine tester.

Pat B:
The tester has to be zeroed to the shaft before the weight is added.

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