Lightweight CR10 exruder fan holder

thingiverse

This project is based on the Ender 2/3/5 part-cooling fan duct designed by xeVox, which also fits CR10 models. Check out their exceptional cooler at https://www.thingiverse.com/thing:2757244. The desire to reduce weight from moving parts on my 3D printer led me to start this project. The CR10 uses a metal cover for the fans, which seems sturdy but heavy. Heavy parts are something we want to avoid when moving them around. Additionally, the stock turbofan moved air like an asthmatic house mouse, which wasn't powerful enough. Looking in the Thingiverse box, I found xeVox's design and decided to print it with thin walls and lesser infill, making it light even with a bigger turbo fan added. However, I couldn't shake off the urge to lighten it further. Thanks to the authors of the earlier creation, they generously provided two important files: 'ender_fanduct.stp' and 'references.stp'. These files gave me the dimensions and measurements for the Ender hot-end carrier sled and their own creation. Using these files, I made an even smaller variant by removing the sweeping duct body that funneled air around the nozzle and parts of the mount for the turbofan. The model should be rotated on its back before printing and support is recommended. The screw holes are a bit small for the stock fan screws but a quick filing with a small screwdriver should solve this issue. All original screws can be used, as shown in the provided image. However, be cautious with the amount of support and use your good judgment when removing it, as it can be difficult to remove support from the small duct without damaging the flange inside.