Grating Model, Captivating

Heartbeat Lenticular Card Capture the moments that make your heart race with 3D printing✨

🌟 Model Introduction

Who says static 3D prints can't come to life? This small lenticular heart card puts the classic Moiré animation principle in the palm of your hand

Gently pull the handle on the side, and the originally static heart immediately 'comes alive' - expanding and contracting, pulsing like a real heartbeat. Each push and pull is a moment that makes your heart race. No batteries, no motors needed, it achieves a smooth dynamic effect using only mechanical structure and optical principles, bringing a new twist to technology and romance

🧠 Principle Revealed: The 'Heartbeat Magic' Hidden in the Lenticular Grating

The core of this model is the use of Moiré pattern animation (lenticular animation) and the visual persistence effect of the human eye

1. Hidden Dynamic Frames: The heart cutout on the left is composed of multiple frames of 'heartbeat' states disassembled into vertical fragments, effectively breaking down a complete heartbeat motion into countless vertical lines
2. Grating's Filtering Effect: The lenticular plate with a handle on the right, each slit acts like a 'frame filter', and as it moves, it successively reveals different vertical line fragments
3. Brain's Automatic Completion: The human eye will 'fill in' the rapidly switching fragments, through the visual persistence effect, into a continuous dynamic image, and thus the static heart 'starts beating'

There are no electronic components in the entire process, the purely mechanical design allows you to experience the wonder of optics with your own hands, and each push and pull is an interaction with physics

🛠️ Printing and Assembly Guide

• Print Settings:
  • Layer height: 0.12mm
  • Infill: 15%-20% is sufficient
  • Supports: no supports needed, print entirely without supports
  • Material: PLA is sufficient, dual-color printing with white + red is recommended, or paint after printing for a more vibrant contrast
  • When disassembling: The panel part is relatively thin, please wait for the printed part to cool completely for easy removal. Use a thin, stiff card to pry up the lenticular surface
• Assembly Tips:
  1. After printing, gently sand the edges of the lenticular plate to ensure smooth, snag-free pushing and pulling
  2. Insert the lenticular plate into the slot in the base, test pushing and pulling a few times to ensure smooth movement without resistance throughout the entire range

💡 Creative Uses

• Can be used as a small gift between couples, print one yourself to give to them, turning 'my heart beats for you' into visible romance
• Can also be used as an educational tool for children, allowing them to understand the principles of lenticular animation and visual persistence while playing
• You can even replace the pattern on the base to customize your own exclusive dynamic card, with incredibly diverse possibilities!