DE:

This small clown box with a surprise effect initially looks like a normal box – but when opened, a middle finger pops out. Perfect as a funny prank for friends, colleagues, or as a desk gag.

The mechanism is based on a simple spring system that makes the finger pop up when opened. The parts are designed to be relatively easy to print and assemble.

⚠️ Note about the latch hook: The current latch hook does not work perfectly yet. I am already working on an improved version of the mechanism. For now, it may help to lightly sand the hook so that it locks in better and opens cleanly.

The model is well suited for PLA and can be printed without complicated post-processing. However, it works significantly better with PETG because the spring then has more force.

Have fun printing and scaring your friends 😄

EN:

This small clown-style surprise box looks like a normal box at first — but when opened, a middle finger pops out. Perfect as a funny prank for friends, coworkers, or as a desk gag.

The mechanism uses a simple spring system that pushes the finger upward when the lid is released. The parts are designed to be easy to print and assemble.

⚠️ Note about the latch:The current latch mechanism is not perfect yet. I am already working on an improved solution. For now, it may help to slightly sand the latch so it fits and locks more smoothly.

The model prints well in PLA and does not require complicated post-processing. it works significantly better with PETG, as the spring then has more force.

Have fun printing and pranking your friends 😄

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