
I've tried them all, and this one is the best on the market. Large pulley, washer supported bearing, modular, correct sizing, you name it. The one and only caveat is the actual tensioning screw, wish it had a higher pitch (for our metric friends, it means shorter pitch). But they all like that, so no stars lost :)Tip: before installing, degrease the tensioning screw and put 1-2 drops of blue Loctite on its threads. This will prevent it from working itself loose over time.

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

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

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

🖨️ FLASHFORGE Adventurer: Enhanced 3D Printer with Removable Extruders and Monitoring Features
4 Review

🖨️ ANYCUBIC Assembled Innovation Off Line Printing: Streamline Your Printing Process with Cutting-Edge Technology
5 Review

High-Precision And Stable Creality Ender 3 V2 3D Printer With New UI, Silent Mainboard, Effortless Filament Feed-In, XY-Axis Tensioner, Resume Printing, And Large Build Volume Of 220×220×250Mm
11 Review

Flashforge Adventurer 3D Printer with Detachable Precision Leveling System
6 Review