This is a mount for creality printers to add direct drive, an 18mm sensor and a 5015 fan for better cooling, I have found this mount works very well, the extra weight of the stepper motor has no effect (even on the ender 2). I also changed how it screws on, instead of using the hotend mounts it uses a screw and is a push fit around the hotend mount, this means that the hotend is bolted on to metal and not plastic as I found the plastic mount started to come loose over time. The motor mount is a bit of a tight fit but I would recommend something like superglue to hold it on, the ptfe tube is around 65mm if I remember correctly.
This design was inspired by elitewill1200's design, thing:2798904, I wanted to tweak his design a little bit.
I would recommend any fan mount which attaches to the heatsink.
Any questions/requests don't hesitate to ask!