Curve enlarging and reducing 1

Violet part slides in dovetail slot of white crank. When the crank rotates points of the violet slider trace curves. Violet curve and center curve of the groove on the yellow cam are identical. Red and green curves can be considered as created from violet curve. Distance between two curves along the white crank is constant. It can be used in cake decorations.

• #فناوری_و_رایانه
• #curves
• #mechanism