The CoreXY motion system is a good solution if you’re looking to print faster. The 3d printer kinematics has become more popular in the last couple of years as users and DIY builders agree on an increase in print quality. The motion system is more lightweight compared to other 3d printer kinematics such as cartesian 3d printer kinematics. A light-weight gantry is needed to increase print speed without affecting print quality. This is all important when attempting to get a smooth finish on 3d printed parts.

CoreXY Kinematics

The corexy kinematics is a complex motion system where X or Y motors move together or opposite of each other to move the carriage from left to right or towards or away . If you were to move just one motor you would see the print head move diagonal.. If the two motors move opposite of each other the print head will move along the X-axis, If the two motors move in the same direction the carriage will move along the Y-axis.

CoreXY Motor Movement

  • Both Motors Move Clockwise >> Carriage Moves Left
  • Both Motors Move Counter Clockwise>> Carriage Moves Right
  • Both Motors Move Opposite of Each Other>> Carriage Moves Toward & Away
  • One Motor Moves>> Carriage Moves Diagonal

Is CoreXY better?

The advantages of the core xy design:

  • Faster print speeds without a reduction in the quality of your prints and this is mainly down to the fact that it doesn’t have many moving parts.
  • A CoreXY printer will have a smaller overall size without sacrificing build volume
  • Print faster without leaving behind artifacts in your print. This is because there are no moving parts of the significant mass. With other printer designs, there’s typically a moving gantry that is attached to the stepper motors or the print bed.
  • The advantage is that there is less momentum when the motion system must suddenly change direction.
  • Core XY uses two motors offset from the carriage 
  • high accuracy and better
  • A good corexy printer can handle almost the same acceleration settings as a delta printer. They can be as fast, but without the pain of calibration.
  • A corexy can print faster with better accuracy because of the lower inertia or weight of the moving parts.
  • Better center of inertia

See CoreXY Architecture 

CoreXY Design Advantages 

  1. It can result in faster print speeds without a reduction in the quality of your prints and this is mainly down to the fact that it doesn’t have many moving parts.
  2. A CoreXY design will have a smaller footprint by being smaller in overall size without having to sacrifice build volume. See CoreXY Design

CoreXY vs Cartesian

The difference between corexy and the cartesian motion system is that the corexy reduces inertia from the static motor positions while the cartesian setup uses at least one motor to drive along each axis. The weight of the motor increases inertia making it more difficult to change direction. Which results in the corexy theoretically being faster in and more accurate than the cartesian.

Belt System & Layout

There are two main ways to implement the corexy kinematics. Either a stacked pulley arrangement or a crossed belt also known as a belt twist. The crossed belts design allows for each belt to take different paths, creating an x-shape configuration.

Belt Path

The corexy belt path can be implemented in two different ways. Either a stacked pulley arrangement or a crossed belt. The crossed belts design allows for each belt to take different paths, creating an x-shape configuration.

Belt Tensioning

If your printer belt tension is off, it’s going to be very obvious in your completed print. You may even notice that something doesn’t look quite right as your design is being printed. Listed below are the print defects that are most likely to occur if your belt tension isn’t what it’s supposed to be.

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