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Old 03-13-2018, 07:18 PM
cliffrod cliffrod is offline
MetalShaper of the Month January 2020, March 2022
 
Join Date: Dec 2014
Location: Spartanburg, SC
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As mentioned previously, a straightedge will help determine when a straight part ends and a curve begins. After those points are clarified, you can start any necessary faired curve vs true radius deliberations...

As far as transferring such information accurately between unseen surfaces, in the studio I regularly use a small cross or "X" of tape. The pieces of tape are applied face to face to each other. Stick it to one part. Clearly punch/Mark the point to be transferred in the center of the "X". Then put the other part against it so the sticky surfaces facing up stick to this other part. Carefully separate them, leaving the tape "X" stuck to this other part and the information will be accurately transferred.
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