Cute Photo Frame Keychain 💌

A compact and creative Cute Photo Frame Keychain featuring a hidden sliding photo mechanism inside an envelope-inspired design. Carry your favorite memory everywhere with a keychain that looks simple on the outside but reveals a personal photo inside.

📸 Sliding Photo Frame Mechanism

The keychain includes a built-in sliding frame system:

• Slide the inner frame out to reveal the photo
• Compact envelope-style exterior
• Smooth and satisfying sliding action
• Secure locking system on both ends

The mechanism is intentionally tight at first to help keep the frame securely in place.

🔒 Locking Mechanism Details

• The top locking section may feel difficult to press during the first few uses
• Once inserted, the frame can slide freely
• A second locking point at the bottom keeps the frame secure during everyday use

⚠️ After approximately 5–10 initial slides, the mechanism naturally becomes smoother and easier to operate while still remaining secure.

🖼️ Photo Size

Designed for photos sized:

• 75 × 42 mm

Trim the photo accurately for the best fit and sliding performance.

❤️ Assembly Note

A separate heart-shaped piece is included as part of the design.

• The heart piece must be glued manually into the center section after printing.

🖨️ Print Settings

• Supports: ❌ No support required
• Walls: 2 walls
• Infill: 10%
• Layer Height: 0.2 mm recommended

Important Printing Instruction

• Print the "Photo_Letter_Body" part in an upright position
• Use a brim for better bed adhesion and print stability for "Photo_Letter_Body"

This helps achieve smoother sliding performance and cleaner tolerances.

✨ Features

• Functional sliding photo frame
• Cute envelope-inspired design
• Portable keepsake keychain
• Secure locking mechanism
• Lightweight and easy to print

⚠️ Important Notes

• Slight sanding may improve initial sliding smoothness if needed
• Avoid forcing the mechanism aggressively during first use

• Print accuracy may affect sliding tolerance depending on printer calibration
  
  
  Print it in this orientation. No support needed.