How do i calculate this wooden mold

MrWood

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My question is how to do this mold "elicpse" on a papper and transfer in on the rounded wooden mold. The diameter is same on wooden mold. I made misstanke but got correct at last. But how is the matematik formula?

My question is how to do this mold "elicpse" on a papper and transfer in on the rounded wooden mold. The diameter is same on wooden mold. I made misstanke but got correct at last. But how is the matematik formula?

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My question is how to do this mold "elicpse" on a papper and transfer in on the rounded wooden mold. The diameter is same on wooden mold. I made misstanke but got correct at last. But how is the matematik formula?



Prints
There are mathematical ways to calculate the "curve of intersection" between two intersecting cylinders. That requires expertise in calc III. would you want to delve into that?
 
The standin piece i a exemple 1 meter diameter and and other piece also 1 meter
The standing i just made round aay down. But i wanna know how to draw The other piece on a paper and fold it on The piece that is lying on floor. Is it somerrhing like this
 

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