Cartesian Diving Bell Toy

thingiverse

This toy showcases the fundamental principles of a Cartesian Diver, consisting of three key components: - A cylindrical body with precision-drilled flood holes for optimal water flow - A cap featuring an expertly designed vent hole - A flexible bulb crafted from a 3ml pipette readily available at most pharmacies or online retailers The first two parts are carefully manufactured through 3D printing, while the third component is sourced from a reliable supplier. With 100 pieces purchased for a minimal cost, you'll have ample materials to create an abundance of Cartesian Divers. To assemble this device, print the initial two components and then insert the pipette bulb into the body as far as it will go. Using a sharp utility knife, trim the stem flush with the base of the body. Next, remove the bulb, press the opening over the stub in the cap, and secure it in place using a strong adhesive. Once the glue has dried completely, reinsert the glued assembly into the body and bond the cap and body together. Ensure that the adhesive is fully dry before proceeding to the next step. To calibrate the diver's buoyancy, submerge it entirely in a bowl of water with the cap facing upwards. Agitate the device gently to guarantee the base cavity is completely flooded. Now, initiate the calibration process by gradually filling the bulb with water through a series of controlled squeezes. After each step, verify if the diver still floats. Stop when the diver just breaks the surface, with most of its body submerged underwater. If it sinks, carefully remove it, expel some excess water from the bulb, and attempt again. When the buoyancy is perfectly calibrated, drop the diver into a completely filled plastic bottle or a glass container with an adjustable lid. Ensure there are no air pockets within the vessel before sealing it. The diver will now sink when you apply pressure to the plastic bottle or push down on the flexible lid of the glass container. It will rise again as soon as the pressure is released.