The fabrication of MEW tubes was performed on a custom-built system with a cylindrical collector. These processing parameters used the same polymer blend but adopted a 22-gauge nozzle in combination with a 3 mm distance from the nozzle to the metal mandrel. A metal cylinder with a diameter of 5 mm was used as the collector, while the toolpath for the scaffolds were designed with MATLAB. The tubular MEW processing parameters included a 4.5 kV voltage applied to the nozzle, an air pressure of 0.5 bar, and a heater temperature of 80 °C. Optical imaging of the fibers and scaffolds was performed on a Keyence VHX-7000, which was complemented with a 365 nm flashlight to image the fiber fluorescence.