((updated)) Hi-flo directional cooling duct for duplicator 4s ((might work with other open face printers))

thingiverse

(I updated) I added a 10-degree tilt to the cooler and lowered the attaching point for the cooler on the arm by 1.50mm - keeping cool air off the head and focused directly at the extruded filament. Next time I have an extra day, I plan to remake it in ABS to get it closer to the carriage (still waiting for my new ABS material). For now, this thin PLA won't melt at that distance. I've been disappointed by the cooling options for printers of this style due to limited space. So when I had a free day, I figured why not try solving that problem myself. Here you go (print with PLA) - custom directional coolers for Duplicator 4s that work incredibly well and are very lightweight. If you want good cooling for PLA, just remove the front panel and side window like I did. These coolers have a great spread of cool air across the extruded filament. For best results, rotate them to sit flat on the fan mount while printing. Printing settings: - Layer Height: 0.10mm - Shells: 2 - Infill: 0.1 - Speed: 20 - Keep it slow as this design requires very thin walls. Installation instructions: Firstly, install the bracket with the fan onto the extruder. Then attach the cooler to the bracket (I used small M3 screws that came with my printer).