An Arduino Nano generated control signals for each MFC to achieve the desired total flow rate and oxygen fraction, while simultaneously reading feedback signals and adjusting outputs to match the true flow. A rotary encoder and LCD provided a simple UI showing setpoints, measured values, and units. 

Due to the high loading of ceramic particles in the resin, incident light intended to cure a defined voxel normal to the build plate undergoes scattering and refraction, spreading into adjacent regions. This behavior degrades cure thickness control and dimensional accuracy as the exposure becomes less localized. Reducing the slice thickness can partially mitigate this effect. 

As noted, particle diameter played a central role in all aspects of this work. To maximize ceramic volume loading, a polydisperse suspension was prepared using small particles together with particles approximately ten times larger. In current experiments, particle sizes of 30–40 nm, 300 nm, and 500 nm are being explored. The goal is to achieve the highest possible volume fraction while maintaining a resin that remains printable.