Radial Fang Fan - 4020 Blower fan, 40mm hotend fan

thingiverse

It's a custom creation! I was unable to find a compatible fan mounting system that could accommodate both the **4020 blower fan** and the **40mm hotend fan**, so I designed one myself. The attachment points required slight adjustments, and the supporting structure needed to be reworked as it interfered with the hotend mount. I've successfully attached mine to an **E3D V5 clone** that came bundled with a **Flsun i3**, and the design allows for adjustable Z height, making it compatible with other machines using 40mm hotend fans. There are two versions available: one with a BLTouch mount on the side, and another without. If you'd like to incorporate BLTouch into your setup, I suggest using my other creation, which can be found at https://www.thingiverse.com/thing:2842776 - it attaches the probe to the front of the fan for easy access. The choice is yours! To assemble this custom fan mounting system, you'll need **M3 bolts and nuts** for both fans, as well as the **mounting screws and nuts that come with BLTouch**. Once printed, simply install the system, place a piece of paper under the hotend, and set your Z height to 0. Mark where the BLTouch probe is, and where your nozzle is on the paper. Then, measure the X and Y difference between these two points and input this value into your firmware as the X and Y probe offset. It's an easy process! Please note that the photo I've included is a bit blurry, but you should be able to make out all the cables routing to the BLTouch side for improved cable management. // *The mesh may appear slightly broken, so feel free to repair it in your preferred slicer - it will print just fine!*