I installed this on an Ender 3 Max - you have to remove the PSU for this or it interferes (I just benched the PSU at the back of the printer - it works fine.) On the Max, the threaded rod extends an inch or two past the end of the top rail, but I didn't see fit cutting it off. The included "instructions" consists of a horrible YouTube video where the camera shakes, the steps are fuzzy, and some parts don't match the equipment that came with it. However, I finally found out. An important step after installation is to ensure that the X-Portal is level along its entire length. You may need to manually rotate the lead screw (with the stepper motors off) to fine tune the alignment. Once you've done this you should be done. Before installing, you should have the alignment complete - if the gantry is not properly assembled, forcing alignment with the second Z-lead screw will simply damage the POM wheels. After I set everything up, everything works fine.
Iverntech NEMA 17 Stepper Motor With Integrated 350Mm T8 Lead Screw: The Ultimate Solution For Precise Z Axis Movement In 3D Printing And CNC Machining
6 Review
NEMA 17 Stepper Motor With Built-In 400Mm T8 Lead Screw For Improved RepRap Prusa I3 3D Printer Z Axis Or CNC Machine Performance - Iverntech
9 Review
10Mm X 11Mm Black Plastic Open Type Cable Wire Carrier Drag Chain Towline R18 For 3D Printer And CNC Machines - 1 Meter Length
7 Review
BIGTREETECH TFT35 V3.0.1 Graphic Smart Display Controller Board For 3D Printer Ramps 1.4 RepRap 3D Printer Can Select Two Work Modes
13 Review
UV Curing Standard Photopolymer Printer by IFUN
5 Review
π¨οΈ ANYCUBIC Assembled Innovation Off Line Printing: Streamline Your Printing Process with Cutting-Edge Technology
5 Review
Economic Ender 3D Printer DIY Kit With Resume Printing Function, Large Printable Area Of 220X220X250MM By Creality 3D
18 Review
π΅ IFUN 3D Rapid Resin - Low Odor Photopolymer Resin for 405nm LCD 3D Printer - Fast Curing, Standard Rigid Formula - Sky Blue, 500g
5 Review