Ender 3 CR-10 X axis linear rail - direct extruder

thingiverse

This remix incorporates my own X axis linear rail conversion design, tailored specifically for Hangtight's design at Thingiverse: https://www.thingiverse.com/thing:3594559. One of the screws holding the extruder bracket has been modified to pass through the bracket, shroud, and new X carriage, securing all three components tightly when tightened. This conversion replaces the original carriage with a printed one, utilizing a novel system for attaching belts without drilling. It's designed to work seamlessly with standard-sized trucks. If you're interested in using larger trucks commonly found on Chinese rails, please comment; I'll upload an adapted carriage for your use. The top v-slot wheel mounts are reused to provide a robust attachment point for the belts. Since the belt is now attached above the gantry, you'll need to invert the X direction in firmware or swap the X stepper motor wires. You'll also require a longer belt; I recommend using these end terminations: https://www.thingiverse.com/thing:3746242. The hotend mounting point should be sanded or filed smooth to ensure it sits level properly. If you choose to use the included Y endstop switch mount, you'll sacrifice only 4mm of Y build volume. The rail is secured with slide-in t-nuts and M3 screws. This resource can aid in aligning the rail: https://www.thingiverse.com/thing:2804412