While I'm picking everyone's brains this evening, another challenge is evading me, this one for the Epilog rotorary attachment users ....
When engraving vases on the rotorary attachment I have never quite found the formula for keeping the image at the same scale as the Corel drawing when the vase if not a constant diameter. For example, if the bottom of the vase is 10.5" in circumference and the top is 6" in circumference, how do you determine the height of the Corel sheet so the rotation of the vase causes the original 4" by 4" Corel Drawing to actually be 4" by 4" on the vase?
There must be a way to figure this. I can come close, but I've never hit the bulls eye ....