Custom Fan Ducts for CraftBot with circular cross section air nozzle

thingiverse

This is a modified version of "CraftBot Custom Fan Ducts" from 3DForms, and I'd like to extend my thanks for his original idea that inspired this modification. I'm hopeful it will significantly improve bridging performance in the CraftBot. The following are key changes made: 1. Height reduced by 1.4mm, providing a margin of 0.9mm above E3D nozzle. 2. Wide and robust connections, measuring 5mm across, connect to 40x40mm fans. 3. Circular air nozzle cross section matches both left-right ducts, ensuring consistent airflow in all directions as the head moves. In addition, I've implemented a circular fan mount for easier attachment. Update: I have included an additional STL file, CB_Fan_Duct_Both_with_Raft.stl, which is optimized for ABS printing with built-in raft structures. This file can be printed and then cut to complete the design. To print this design effectively: * Print with CraftWare v1.10 using a 0.395mm extrusion width to slice side walls accurately. * Set your draw speed at 50mm/s, layer height at 0.15mm, and use 80% perimeter width for improved results. * Perimeter speed should be set at 20mm/s (40%), with an adjusted 90% first layer extrusion to enhance quality. * Keep the temperature steady at 215C filament, omitting support material. * Estimated print time