Ender 3 Dual Z-Axis Mod

This is a dual Z-axis mod for the Creality Ender 3 with a single Z-axis stepper motor. I found some of this mods already on thingverse. Hence I wanted to use this spindle set I found on amazon (https://www.amazon.de/gp/product/B01NBX4LBZ/ref=ppx_yo_dt_b_asin_title_o01__o00_s01?ie=UTF8&psc=1), I had to redesign the frame mount for the bearings. Addittionally I wanted an aluminium 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. It would be nice if someone who tried printing this parts could provide feedback about the fitting and strength of this parts.

I want to provide a complete guide for this mod. Therefore I have attached two PDF files. One describes all required measurements for the aluminium L-profile required to build this mod and the second describes the GT2 belt joining process.

Since you have to move the PSU you will have to print a PSU holder e.g. https://www.thingiverse.com/thing:3304804

Partlists

Aluminium Spindle Mount Version

• Aluminium 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.de/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.de/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

Print Settings

Printer Brand:

Creality

Printer:

Rafts:

Doesn't Matter

Supports:

Resolution:

0.2

Infill:

Filament: Goedis PETG gray

Category: 3D Printer Parts