Spider Scare Box
thingiverse
Saw this scare prank on youtube made out of wood. So here's a 3D printed version :D I used a spring from a ball pen between the two spool holder You need a wire bended in a diameter of around 80mm, cutted to the needed length. Further you need a thread to pull the spider out of the box. The thread has to be fixed at the lug on the spool. Fix the other end to the lid at the correct position. Slide the lid a couple of time and find the right length. https://youtu.be/t-S_N-bgMxY The spider can be found here: https://www.thingiverse.com/thing:179544 Scaled to approx 40mmx40mm.
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