Hiprecy LEO Extruder/Hotend Brace

thingiverse

The extruder/hotend assembly on the LEO is held onto the X carriage with only two small screws and a narrow bracket, making it prone to flexing. I'm not sure how much this affects print quality, but I'd rather see it more securely attached. That's why I designed this brace to be sandwiched in between the carriage and the extruder assembly, preventing flexing from occurring. Installation: - Remove the two M3 screws holding the extruder assembly to the X carriage. - Remove the zip tie holding the harness to the carriage. The tie will no longer be needed as the brace will hold the harness in place. - Slip the brace in between the harness and the narrow bracket attached to the extruder, moving the fan and stepper motor wires to the right a bit so the brace can touch the fan bracket. - While holding the brace against the extruder bracket, slide both over the two posts that you removed the M3 screws from, guiding the harness into its slot as you do this. - Hold the extruder and brace against the X carriage while securing with the two original M3 screws into the posts, being careful not to pinch any wires. Everything should fit together with no gaps, and the upper part of the brace should rest against the extruder itself, preventing upward flex, while the lower part of the extruder rests against the fan brackets on both sides, preventing downward flex. Update 2-24-20: I have modified the design slightly to allow more airflow through the hotend heatsink.