BME688 Sensor Integration for Nasal Prosthesis
Budget: $30 – $250 USD
2. Sensor integration (BME688) in the nasal area:
Inside one nostril, we need a special cut-out slot where the BME688 sensor board can fit snugly.
From this slot, through the inside of the head structure (which will be printed empty, with a minimum infill of 5-8%), a 6 mm diameter guide channel must be designed. Through this channel, the power/data wires (I2C) and pneumatic tubing will pass to the base of the neck.
3. Pneumatic subsystem (Mini-air pump):
Inside the mannequin (in the central/base area), a dedicated mounting space must be left for a mini-diaphragm air pump (approximate dimensions of a 370 type motor, plastic nozzle diameter: 4 mm).
Pneumatic path: The nostril sensor will be tightly connected via flexible silicone hose (outer diameter 5-6 mm) directly to the pump suction nozzle. The air will be discharged outside the mannequin through a discreet hole in the back or through the base of the neck.
4. Optimizations for fast printing (Slicing):
The part must be designed/cut so that it can be printed in two halves (front/back or left/right) to eliminate as much internal plastic supports as possible.
Recommended slicing settings: coarse layer height (0.28 - 0.3 mm), thin wall ("shell") and minimal structural infill (Gyroid 5%), as the part will not be subjected to mechanical shocks.
Inside one nostril, we need a special cut-out slot where the BME688 sensor board can fit snugly.
From this slot, through the inside of the head structure (which will be printed empty, with a minimum infill of 5-8%), a 6 mm diameter guide channel must be designed. Through this channel, the power/data wires (I2C) and pneumatic tubing will pass to the base of the neck.
3. Pneumatic subsystem (Mini-air pump):
Inside the mannequin (in the central/base area), a dedicated mounting space must be left for a mini-diaphragm air pump (approximate dimensions of a 370 type motor, plastic nozzle diameter: 4 mm).
Pneumatic path: The nostril sensor will be tightly connected via flexible silicone hose (outer diameter 5-6 mm) directly to the pump suction nozzle. The air will be discharged outside the mannequin through a discreet hole in the back or through the base of the neck.
4. Optimizations for fast printing (Slicing):
The part must be designed/cut so that it can be printed in two halves (front/back or left/right) to eliminate as much internal plastic supports as possible.
Recommended slicing settings: coarse layer height (0.28 - 0.3 mm), thin wall ("shell") and minimal structural infill (Gyroid 5%), as the part will not be subjected to mechanical shocks.