Ender 3 Lightweight DD Overhaul & Linear Rail

thingiverse

Complete X axis overhaul for the Ender 3 / Pro. Rapido HF hotend, Orbiter v1.5, Hiwin MGN12H, 2x 5015, BLTouch. This is my complete overhaul for the Ender 3's X axis. I used this to get my (currently) world record bedslinger #speedboatrace benchy at only 4m 48s. After trying other people's designs and having issues or bad performance as they always lacked something or another, I finally decided to design my own X axis system. I managed to push my printer up to 40kmm/s^2 accelerations at 360mm/s, with the bottleneck being my E3D High Torque steppers (I don't recommend, buy LDO 2504AC instead). I'll be sharing the STEP file along with the STLs, and I would love to see the community's upgrades for my design! This project requires: Tools: Soldering Iron / Insert Tool Hex keys Pliers Tubing cutter / exacto knife Hardware & Parts: MGN12H 300mm rail Phaetus Rapido HF Hotend 28mm PTFE tube Orbiter v1.5 (might upload other versions for other extruders in the near future) 2x 5015 blower fans (I use 12v GDSTime fans, they run great at 24v and move a lot of air) 25x10mm fan or 40x10mm fan (25mm is lighter and more than enough cooling for the Rapido) BLTouch (Not required) ADXL345 Accelerometer (Not required) 2x M3*6mm screws (for the accelerometer, not required if not using one) 15x M3*8mm screws 4x M3*10mm screws (2 of which for the BLTouch, not required if not using one) 2x M3*14mm screws 4x M4*18mm screws 4x M2.5*8mm screws (Included with the Rapido Hotend) 2x M3 Nuts 6x M3 inserts (Designed for these: https://www.aliexpress.com/item/1005002615923810.html OD 4.2mm H3mm) Printed Parts: Mount Duct L Duct R 25mm Fan Duct / 40mm Fan Duct, according to your hotend cooling fan size