Ender 3 dual Z axis with optional frame braces

thingiverse

A must-have upgrade for the Ender 3 is a dual Z axis with a single stepper, which significantly increases accuracy and reliability. I designed an upgrade using standard parts that don't require modification and combined it with my earlier frame braces design https://www.thingiverse.com/thing:3719799 I've added corner pieces without the frame braces for those interested in just the dual Z axis upgrade. The bracket is designed to be as stiff as possible, resulting in an unusual shape I'm quite happy with. A video shows the process of this upgrade https://youtu.be/nBVrcIZ095Y All parts were purchased from RepRapWorld, and coincidentally, the 696 mm closed loop timing belt along with two 60 teeth pulleys have a similar center distance to the two vertical beams. All holes are slotted for slight adjustments. The power supply must be relocated, and I've noticed mods that enable this. An upcoming enclosure will affect power supply placement, so I haven't created a solution yet. EDIT: A solution has been created https://www.thingiverse.com/thing:3773553 Consider buying me a coffee if you liked it or found it helpful http://ko-fi.com/properprinting