Kingroon KP5L Z sync belt system

thingiverse

Kingroon KP5L is a cheap printer with an high potential, but lacks some features. It's a large format printer with 300x300x330 printing area, it has dual Z rods dual steppers but they're not in sync.Here a belt tensioner for a dual Z sync belt system.This tensioner is for 800mm and 810mm closed loop belt.It's possible to use the stock 432mm lead screws but there will be lot of gap on stepper coupler. Better to buy 450mmIt's recommended to rise Z steppers voltage from 1v to 1.38v on te mainboard. The stepper will have more torque to contrast top belt tension. List of hardware:2x T8 Lead 8mm 450mm lead screws,2x pulley 20T GT2 bore 5mm for 6mm belt without theets,1x pulley 20T GT2 bore 5mm for 6mm belt with theets,2x pulley with flange for Lead screw 8mm bore 6mm belt.1x closed loop belt GT2 6mm 800 or 810 mm perimeter.2x M5 25mm dome head cap screw3x M5 15mm dome head cap screw5x M5 lock nutsSome advice: better to leave the top lead screw loose like stock to avoid quality problems. Use stock rigid stepper-screws coupling. Use my gantry alignment tools:https://www.thingiverse.com/thing:6219922Best to print in PETG.