Ender 3 Dual Z-Axis Mod

thingiverse

This is a dual Z-axis mod for the Creality Ender 3 with a single Z-axis stepper motor. I discovered several similar mods on Thingiverse, so I decided to use this spindle set I found on Amazon (https://www.amazon.com/gp/product/B01NBX4LBZ/ref=ppx_yo_dt_b_asin_title_o01__o00_s01?ie=UTF8&psc=1), which required me to redesign the frame mount for the bearings. Additionally, I wanted an aluminum profile for the Z-axis spindle mount. I have also decided to attach a printable version of the spindle mount. Note: I have not tried printing the spindle mount for the axis, so it would be great if someone who has tried printing these parts could provide feedback on their fitting and strength. To complete this mod, I've attached two PDF files. One describes all required measurements for the aluminum L-profile needed to build this mod, and the second explains the GT2 belt joining process. Since you'll need to move the PSU, you will have to print a PSU holder, for example (https://www.thingiverse.com/thing:3304804). Partlists ===== Aluminum Spindle Mount Version ------------------------------- * Aluminum L-profile https://www.hornbach.at/shop/Winkelprofil-Aluminium-silber-40x40x2-mm-2-m/6069587/artikel.html * 4x M5 8mm Screw * 4x M5 15mm Screw * 2x M3 8mm Screw Printed Spindle Mount Version ------------------------------- * 4x M5 12mm Screw * 2x M3 10mm Screw * 8x M5 Washer * 2x M3 Washer Version Independent Parts ------------------------- * 2x M5 40mm Screw * 4x M3 30mm Screw * 12x M5 Nut * 6x M3 Nut * 4x M3 Tee Nut Print: https://www.thingiverse.com/thing:3050607 Spindle Parts (everything included in https://www.amazon.com/gp/product/B01NBX4LBZ/ref=ppx_yo_dt_b_asin_title_o01__o00_s01?ie=UTF8&psc=1) ------------------------------- * 1x 400mm Threaded Rod (8mm diameter) * 1x 8mm Nut for Threaded Rod * 2x 8mm Pillow Block Bearing Closed Timing Belt ------------------- * 2x GT2 Timing Pulley 40 teeths Print: https://www.thingiverse.com/thing:3330894 Buy: https://www.amazon.com/gp/product/B079BJQNN1/ref=ppx_yo_dt_b_asin_title_o01__o00_s00?ie=UTF8&psc=1 * Super Glue I used this one: https://www.hornbach.at/shop/Loctite-Sekundenkleber-Profi-fluessig-20g/4026370/artikel.html * Cleaning Alcohol * Sandpaper (P60) * Duct Tape