About this 3D model
Remix for the ender 3 or really any 3d printer of the same design, it pushes into the side of the aluminium extrusion pretty much the same as the ender 3 filament holder mod that seems common. I have updated the file as I was a bit dump, I've rotated the mounting bracket 180 degrees and added a 5 degree angle to the mount to bring it more in like with the extruder feed.