Ender 3 - Speed Drive Mount - Bondtech LGX

prusaprinters

This is a speed drive mount I designed for the ender 3 which mounts behind the x gantry bracket. This was designed specifically for the Bondtech LGX with its accompanying motor. As a result, the clearance between the back of the motor when mounted and the Z extrusions is very tight. As a result, I doubt this will fit many other extruder+motor combinations but you are welcome to try. However, this means that the hotend can stay in its default location so no buildplate area is lost.Print RecommendationsIMPORTANT: I strongly recommend you print this in PETG or some other high-temperature resistant filament instead of PLA. From my experience, the LGX motor can run quite warm and so it might soften pla over time.This model requires supports (see photos).Nozzle Size: 0.4mmLayer Height: 0.2-0.28mmPerimeters: 3-4Infill: I use GyroidInfill Percentage: 10-20%InstallationTo install this mount, disassemble the top two v-rollers on the x gantry and slide the 8.35mm sleeve bushings from those v-wheels into their respectively-sized holes in the mount and reassemble the v-rollers. That's it!Hardware4x M3x6mm screws to fasten the LGX extruder to the mount.DownloadIn addition to the 3MF files, the project's step file and fusion 360 file is included.