Cetus Dual Fan duct

thingiverse

Cetus is a compact printer that boasts a single fan doubling as both part cooler and nozzle cooler. However, this setup has its limitations since the part cooler operates continuously, often causing brim to wrap (UpStudio utilizes extremely thick brim/raft settings, which work well for most designs) when using Slic3r. To maximize the use of available fan ports in the head, I created a dual fan duct that leverages both an always-on 5v port and a PWM-controlled port (activated via `M42 P15` gcode on Cetus CPUs or M106 with TinyFab CPUs). This design is tailored to utilize 5015 blower-style fans (I am currently using [these](https://www.amazon.com/gp/product/B07KRV4MDJ) ball-bearing fans), which have produced outstanding results. For users with the original CPU, my pre-configured Slic3r profile can be used along with a modification to move `M42 P15 S1` to a later stage after one or two initial layers, ensuring excellent adhesion and print quality. On the other hand, those using the TinyFab CPU can disable fan operation for the first few layers by utilizing built-in cooling options in Slic3r itself.