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A 3D Printed Animated Valentine Heart for My Valentine!

A Valentine Heart for my Valentine, with a twist!

This animated twisting heart is constructed from eighteen heart slices. The motor and gear system is designed to rotate the top slice 180 degrees while holding the bottom slice stationary, then hold the top slice stationary while rotating the bottom slice 180 degrees.

To rotate the inner slices (between the top and bottom) the bottom and inner slices contain small metal pins and the inner and top slices contain slots. Each pin fits into the slot in the slice above it, and each slot is 10 degrees in arc length. When the top turns 10 degrees, its slot comes in contact with the pin in the slice below and that slice begins to rotate, and when the slice below rotates 10 degrees, the pin in the slice below it begins to rotate. This process continues down the slices until the top rotates 180 degrees at which point the bottom begins to rotate to put the heart back together.

The only contact between each slice must be the pins in the slots, thus careful 3D printing (no warping) and assembly (bearings completely flush with the bottom of each slice) are required to successfully 3D print and assemble this model.

As usual I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to comment as I do make plenty of mistakes.

Designed using Autodesk Fusion 360, sliced using Ultimaker Cura 4.8.0, and 3D printed in PLA on Ultimaker S5s.

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