This is Hotend Design to fit the Bondtech LGX Extruder to the Ender 3 (Pro) and to mount 40mm Fans and the BLTouch. I found nothing similar online. When I first tried it, I printed the LGX-Mount with PLA, but that bend while printing because the Stepper-Motor got hot. You have to make your own metal bracket and then you can use the adapters to mount the Fan and the BLtouch.
The author marked this model as their own original creation.