Embrace the spirit of Valentine's Day with this enchanting Spring Lock Box. This heart-shaped box is broken up into two halves. As the halves unite, the box gracefully opens, revealing a compartment for your cherished tokens of affection. It symbolizes the unity of hearts in perfect harmony.

Each compartment has its own spring and lid (springs are marked with a L or R as you can see on one of the pictures). Fitting the spring in the box can be challenging because of tight tolerances. The compartment for the spring has a lip and small pin to keep the spring in place (added pictures to demonstrate the pin and lip). When fitting the spring you'll need to pull the sidewall of that compartment a bit to the side to make a bit more room (added a picture to show which wall you need to pull). Once the spring is fitted you can add the lid and place the spring pin into the guide of the lid.

The spring is not powerful enough to open the lid when it comes off the printer. You'll need to pre-tension the spring before fitting it. I've added a GIF to demonstrate how to pre-tension the spring.

Print Settings

Box and Lid

• Can be printed in PLA
• Tree supports
• 15% infill
• Arachne wall generator recommended for better dimensional accuracy.

Spring

• Best printed in PETG for more flex
• Tree supports
• 15% infill
• Arachne wall generator recommended for better dimensional accuracy.

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