Montessori soda volcano

How it works

Close the volcano and place the ground piece on top. At the back of the volcano, there’s a slot for a 9mm silicone tube. Connect this tube to a syringe filled with vinegar. Add some baking soda and a few drops of food coloring to the magma chamber. Push the syringe, and BOOOOOM! Enjoy the eruption!

Printing

All parts print easily without supports. Alongside fully multicolor files (including ash layers), I’ve also provided files with separate ash layers, which can reduce print time by half. After printing, use superglue to attach the ash lines to the volcano.

For best results, I recommend printing with 3 perimeters to ensure the model is fully sealed.

Magnets

Inside the volcano’s walls, there are spaces for 14mm x 2mm magnets. While not necessary, adding them gives a satisfying snap when assembling the two halves.