Costs are subject to change. The monthly unit cost for each device is estimated at ~$4.75, which includes the hologram network. It is recommended to purchase parts like PVC pipes, ultrasonic sensors, and electrical wires in bulk whenever possible.
All prints were done using PLA filament on a CR-10v3-1 3D printer. For optimal results, printing bed temperature should be optimized, and prints should be done with rafts and support structures.