Rose Obregon
Syringe Pump
The current project implements an airbrush with gravity-fed disposal of the solvent. This is a slow and manual process therefore the syringe pump must automate the system. A syringe pump is a device that can accurately deliver small amounts of solvent by positive displacement at a constant rate. These are commonly used in lab experiments for the automation of the experimental process. In the pneumatospinning set-up, the syringe pump feeds the solvent into a tube and it is extruded towards the collector through a needle to fabricate the fibers. The syringe pump must emit the fluid at an accurate and precise rate. This process must be controllable, accurate, and automatic.
Rodrigo Villarreal
Rotating Collector Motor
The initial design of the collector mount had it mounted on a small fan located behind the system setup. This caused the collector plate to have very little speed control since the fan operated at a constant voltage and had very little manual control. With a micro brushless dc motor, the experiment is able to be conducted with higher precision and control that allows for more uniform and improved results.
Nestor Guerrero Sandoval
Dehumidifier
The current project is at the mercy of daily humidity levels. As long as humidity levels remain above 55%, the pneumatospinning experiments cannot be run. To address this issue in the new design, a form of dehumidification is needed around the apparatus to limit local humidity levels. Various dehumidification methods were explored, and the thermoelectric based method was the first to be explored for our new design due to its compact size, low cost, and dehumidification rate.
David Pope