Push-box (toy soundbox)

thingiverse

Based on an existing model, this design was created using SketchUp software. Although untested, the concept should work in theory. Your feedback is highly appreciated! The creation process went smoothly, but minor adjustments and fine-tuning are necessary. To build it, you'll require three AG13/LR44 batteries, a spring, and a metal plate for battery compartment contact. Four 5x20mm springs, a 28mm speaker (other sizes may fit), electronic components affixed to the bottom part, and a speaker inserted into the top part's ring are also necessary. Slide the springs onto the internal pegs, assemble the box, insert batteries, and close the battery compartment with the lid.